Yes, if you bake this as muffins you will need to adjust the cooking time. If it’s a regular oven, start checking it around 15 min, if you have a convection oven, start checking them around 12 min. Also the size of your muffin tins will affect the outcome so if yours are smaller, just keep an eye on them and when they smell good and look done, start testing them with a toothpick. If it comes out clean, they are done.
ok my bread did not quite look like this.it had ammonia scents. serious…. seriously working recipes….open to suggestion…my husband’s mum was a a baker…..I fail at every attempt to provide. Your assistance is helpful.thx I am the ever so lucky lin..plan to stay lucky….(ps do this b/c my bs is borderline.fasting bs +90……..and though, my spouse refuses to acknowledge it he has issues as wel).180 after a mango whatever…I love this man, and plan to keep him with me. forever….pls assist..so tired of numbers that are compromised….bull ..we are a unique community because we care…many others are impacted, they just do not connect… We are the only people who appear to care about what elevated glucose does to people….I care for my mum…….she is blind…..confused……multiple strokes..pls, keep helping…Mom was a pilot, a photograhpher, an independent woman from the age of 15. Now, she lves in a bedroom, vision gone, and momory deplleted…….life does not have to end this way. She loves your recipes……I prep them……you have made her happy…love, lucky lin………..
this is a great recipe! I am not full-on paleo, primal, or other, but like to experiment. This one is a keeper. I followed the recipe pretty much to the point, just adding in a tablespoon of hemp protein powder (pure hemp) with the flour mixture. It has wonderful flavor and I’m looking forward to having it with some almond butter tonight. Thanks for all your testing! You’ve made happy recipients out of many of us :)
I think red meat from grain fed cattle and sheep IS bad for us . These animals were designed to eat grass. We were designed to eat meat, fat, vegetables , a few seeds and a little seasonal fruit. But never any kind of grain. ! When Man began farming and grain consumption , so began disease and illness. Today our food supply is being contaminated by Factory farming and GMOs.
LOREN CORDAIN, Ph.D., is one of the top global researchers in the area of evolutionary medicine. Generally acknowledged as the world's leading expert on the Paleolithic diet, he is a professor in the Health and Exercise Science Department at Colorado State University. Dr. Cordain and his research have been featured on Dateline NBC and in the New York Times, the Wall Street Journal, and other media. He is the author of The Paleo Diet and The Paleo Diet Cookbook, among other books, and makes regular media and speaking appearances worldwide.
Coconut Flour: As Lexi pointed out Coconut Flour is not a 1:1 ratio. Coconut flour absorbs a LOT of liquid, so you have to either combine it with other flours in light quantaties, or use 6 eggs for every 1/2 cup of flour. Yes, I said 6 eggs with every ONE HALF cup of coconut flour. You can also use various liquids. Either way, it needs to have the same consistency as it would if you used the almond flour, it should be thin like pancake. If not it will out very dense.
Almost equal numbers of advocates and critics seem to have gathered at the Paleo diet dinner table and both tribes have a few particularly vociferous members. Critiques of the Paleo diet range from the mild—Eh, it's certainly not the worst way to eat—to the acerbic: It is nonsensical and sometimes dangerously restrictive. Most recently, in her book Paleofantasy, evolutionary biologist Marlene Zuk of the University of California, Riverside, debunks what she identifies as myths central to the Paleo diet and the larger Paleo lifestyle movement.
OMG these are AMAZING!!! I’ve made them three times in the past week and my family eats them like crazy. We haven’t had “bread” since we went Paleo in June. (Not that we haven’t tried, but these are the real deal). I always double the recipe and they always turn out perfectly. I found a little loaf pan to make them in and now I have cute little loaves of bread. I love, love, love this recipe. One of my favorite things ever! Thank you.
Made this yesterday and it looked/tasted beautiful! Did not do anything special (whipping the white, creaming the butter, etc) .. just folded gently and it was just a beautiful golden color. I topped it with sesame seeds because the flax seeds had already been put away. I put the dough into two mini-loaf pans and they fit perfectly. Perfect way to get my bread cravings with gest. diabetes and got two thumbs up from my diabetic dad, too, who eventually stole my other loaf! Will be making again and again. Thank you!
The paleo diet (also nicknamed the caveman diet, primal diet, Stone Age diet, and hunter-gatherer diet) is hugely popular these days, and goes by one simple question: What would a caveman eat? Here, we explain what the paleo diet involves, its pros and cons, and, ultimately, what a modern person needs to know to decide whether or not to take the paleo diet plunge.
I just made this bread and it came out great although I did adjust a few ingredients. I made this bread with four eggs(1 less than called for). Also I whipped the egg whites separately until they formed peaks(in order to make the bread less dense). Lastly, I added two tablespoons of applesauce to make up for the missing egg. This bread did take 45 minutes to bake, but I lowered the temperature to 245 because the outside was cooking faster than the inside. In the end this bread came out delicious and I enjoyed it with jam and honey, happy baking.
Hi Broke, so there are a few things that could be affecting the texture of your bread. First, do you have an oven thermometer to make sure the temperature is where you need it to be? This could affect the baking time. It’s ok if you need to bake it longer, and I would let it cook until you test the middle of the bread with a stick inserted into the center. Only when it comes out clean you remove it from the oven.

I’ve made this in my bread machine several times, and it comes out beautifully. I double the recipe, choose the quick bread setting and it produces a nice 1 kilo loaf (2.2 pounds). I’m using a Kenwood model BM450 as I’m in the UK, but I think the same machine is marketed in the US by DeLonghi, if anyone wants to compare specifications. I just dump all the ingredients in the pan in order, and give a couple of stirs around the edges of the pan with a spatula while its on the mix cycle (though I’m not sure if its even necessary), and that’s it.
Oh my goodness. I’m new to your site and this is the first recipe I have tried. It really is SUCH a tasty, flavorful bread. I did make some changes. I followed a comment on your pinterest pin for this recipe, and the person who tried it recommended 1/2 tsp xanthem gum in place of 1/2 cup arrowroot powder. I did this to lower the carb count and because arrowroot was the only ingredient I was lacking. It reminds me of a somewhat sweet, but still savory wheat flavored corn muffin. I’m sorry if that’s confusing. It’s a bit more tender/crumbly than sandwich bread though, and I do think that has to do with my substitution. For this reason it might be too delicate to support a sandwich. Regardless, it’s delicious as a side in a dish. I actually prefer it that way. Thank you again for sharing. So thankful.

I just made this and it tastes like brushing my teeth with baking soda! Thank goodness I tasted the batter before it went into the oven. I added an extra 1 1/2 tablespoons of honey, then 1 teaspoon of vanilla to try to cut the bakingsoda flavor. I didn’t know what else to do- I didn’t want a sweet loaf but it was too astringent to eat. I ended up with a neutral (not sweet) tasting loaf that still tasted soda-ish. Very metallic tasting.
The only downside is that it is small and we eat almost all of it in a day! I’d love to make several loaves at a time and freeze them. Have you tried freezing it? How do you wrap it and how long does it last in the freezer? Thanks so much for this recipe, it’s made going paleo so much easier for my family, especially when I think about school lunches!
Sometimes nothing but a giant cookie will do. There’s no need to turn on the oven or share when it comes to this Paleo dessert. Coconut and almond flours bring the fiber, while a scoop of protein powder and your favorite nut butter add a whole lot of (you guessed it!) protein. Add in your favorite cookie mix-ins, like nuts or dairy-free chocolate chips, for a cookie your body will thank you for eating.
*I researched on yeast substitue sites that the apple cider vinegar (you or lemon juice if you prefer )and baking soda ratios MUST be a proportional 1:1 . (Ex: 1 tablespoon of each). Also when you add all the dough ingredients together, omit Applecider vinegar and baking soda untill your ready to pop dough in pan into the oven. (Whisking the vinegar and baking soda together also produces the same desired effect as yeast in a regular bread recipe ..thus the addition quickly and at the end)
Still, many scientists have expressed concern that we do not yet have enough evidence to make any strong claims about the paleo diet’s health benefits, especially its long-term effects. In fact, in an article in response to the first review, authors Tanis R. Fenton and Carol J. Fenton, from the Cumming School of Medicine in Canada, wrote a letter to the editor in which they expressed their disappointment with the review. (5)
I cut the bread into thin slices and it is great toasted. I made a sandwich for my husband with bacon, lettuce and tomato and when I handed it to him he looked at me funny and after he took his first bite he asked me: “where did you buy this bread, can we eat bread now?” lol…. I told him I had made the bread with almond flour instead of wheat and he was thrilled.

For all the recipes claiming to be the best paleo or Keto bread, I think yours is! I have found your recipe very helpful in satisfying keto cravings for bread. I am a personal chef and now a hero to my low-carb clients. I’d like to share this recipe in a cooking Keto article for our United States Personal Chef Association member magazine. Would you mind? It would of course be attributed to you/your site!
I had an awful experience with the recommended Magic Line loaf pan. The uncoated “natural” aluminum this pan is made of can dissolve and leach into food that contains acidic ingredients. I’ve been using anodized aluminum cookware for years to prevent this from happening, and I should have known better, but I ordered the pan from Amazon anyway because I wanted the little square slices.
I love this bread!!! Because of this bread, I can eat a sandwich now and then and not be in pain from gluten and additives. I’ve also made it into French toast and it came out great. Dairy is a problem food for me, so I substitute the butter for coconut oil and use coconut cream in place of yogurt. I freeze this bread in half loaves so I always have some on hand. Delicious!!
While the diet as a whole hasn't been well studied, the benefits of cutting packaged foods from your diet could be huge. According to the Harvard School of Public Health, three quarters of the average American's sodium intake (which is almost double what it should be!) comes from commercially prepared foods. And, one Public Health Nutrition study found that people who cook at least five times a week are 47% more likely to be alive 10 years later compared to those who rely more on processed foods.

Make it Paleo: Over 200 Grain Free Recipes For Any Occasion by Bill Staley and Hayley Mason. The book shows you how easy it is to take any dish and Make it Paleo! Adapted from Chinese, French, Mexican and classic American meals, the over 200 recipes are each accompanied by good photos and notes to ensure you recreate each dish with ease. Most recipes are ones that can be found in an ordinary cookbook. Butter and vinegar are also used, which I do not consider paleo. Published October 20, 2011.
I’ve been working on this Paleo Bread recipe for several months and have tested it a couple of dozen times. In fact, every time I create a recipe I test each and every ingredient addition or subtraction. That’s why I think it’s kinda funny when people leave comments below recipes (or on Instagram) asking how such and such ingredient substitution will turn out.

Combining higher protein intake and fresh vegetables leads to another major benefit: blood sugar stabilization. Between 35 and 45 percent of the average Paleo diet is comprised of non-starchy fresh fruits and vegetables that won’t spike blood sugar levels, making it an optimal diet for diabetes prevention. This is because nearly all of these foods have low glycemic indices that are slowly digested and absorbed by the body.


As for the mixing…I mixed the dry ingredients in one bowl, then separated the egg yolks and whites, in bowls. I whipped the whites until they were thick. I added the yolks to the whites, and added the honey and oil. I mixed that up. I added the wet to the dry and mixed. It was really thick. Then I combined the baking soda and vinegar, mixing them. I added them to the whole mix and slightly stirred.
Robin, if you use a larger size pan than I indicate for the recipe, your batter won’t fill it up and your loaf will be flat. An example is if you fill a 1/2 cup with 1/2 cup of water, the water comes to the top of the cup, if you transfer that 1/2 cup of water to a 1 cup measuring cup, it will only fill it halfway. That’s what’s happening to the bread when the pan used it too large. I’m so glad that the bread tasted wonderful!

The Carnitine Miracle by Robert Crayhon, M.S. The nutrient carnitine is abundant in red meat. According to Crayhon carnitine helps balance blood lipids and blood sugar levels, maximizes energy levels, increases endurance, eliminates discomfort in ketosis, promotes burning of fat and building of muscle and increases overall well-being. See reviews at Amazon.
Hi James, Thank you for sharing. Most likely this wasn’t fully cooked if it stuck to the parchment paper, as I never have to grease it, but I did add a note to the post that you could do that to be on the safe side. I think the previous recipe and post were not clear enough on how to make sure that it’s done, so I updated them and hope that will help. I’d love to know if that made a difference if you try it again. But, this bread is more similar to fluffy pre-sliced white bread than a crusty bread, so I still would not expect a crust. If you are looking for a crusty bread, try this almond flour bread instead.
This is the best grain-free bread recipe I have ever tried. I didn’t have the loaf pan so I used one of my small casserole dishes and it came out square and a little darker around the edges. I used 1 1/2oz. of coconut oil and mixed it with 1/2oz. of melted butter and it came out really moist. It also came out dark like whole wheat bread, so I am assuming that I used just a little too much flax meal. I love you for taking the time to perfect this!!! I’m thinking of making a spice bread next time. Let you know if it works!!
I was curious about the pan and found a very interesting 1 out of 5 star review on Amazon. The customer who purchased and used the pan not only got a metallic taste in her(?) first loaf, but the bread was also tinged green. She had to throw the bread away. I do not know if it would get better with use and washings, but she gave a good enough argument for me to avoid this buying this particular pan.
hi Adriana! I tried this recipe but tweaked it a bit since I don’t have arrowroot flour. I used rice flour for the meantime cause it’s the only one I have here. Since I also have only one egg available, I reduced the other ingredients to 1/4 of the original. The recipe yielded one mini loaf bread. Tasty and tender texture like regular flour bread with a little gritty texture cause I just ground slivered almond in a seed grinder. But still loved the outcome. and it smells fantastic during baking. I posted the image in my instagram at http://instagram.com/karenieavila. Thank you for sharing your recipes to the world.:-)
This was delicious! I cooked it in a glass pan. Because of the size of my pan it did not come out as high as in the picture. It totally didn’t matter. Also when I took it out of the oven after 30 minutes the middle still seemed raw after testing it with a knife. I popped it back in the oven for about eight minutes. The bread reminds me of bran muffins, just in bread form. Even my four-year-old loves it! I highly recommend it because of the taste and how quick and easy it was to make.
Thank you for this recipe. This is so amazing – easy and delicious! I made it already three times today – the first time to see how it turns out, the other times because it was so good. My 10 years old son loved it and couldn’t stop eating it as a desert with a little maple syrup. He said that it tasted like Yorkshire pudding. In one of them I replaced the half spoon of butter with 1 tablespoon of unsweetened apple sauce – it became more moist and puffed up more than the others. I could still toast it in the toaster and was very good.

I’ve been thinking about bringing paleo-friendly bread and rolls to LCK for some time now. But I knew before I did that I needed to make sure they fit specific criteria. They need the right flavor and fluffy, soft, air-y, bread-like texture. You see, I’ve never bothered buying gluten-free breads in the store. I never thought it was worth it because I always felt they were dense, not the right flavor, etc.
The Lazy Paleo Enthusiast's Cookbook: A Collection of Practical Recipes and Advice on How to Eat Healthy, Tasty Food While Spending as Little Time in the Kitchen as Possible by Sean Robertson. The author is a recovering vegan and in the first half of the book recounts his dietary experiences using some paleo foods to restore his health. You learn that the author's main strategy is to make food in large batches which can be reheated to provide dinners for several days running. The second half of the book contains 28 recipes. Some borderline or nonpaleo ingredients do appear, but most of the recipes are more paleo than not. Published November 15, 2011.
I was hesitant at first to try to make the bread because I didn’t want to waste the expensive ingredients. Well the bread taste even better. It doesn’t have any eggy flavor. It actually taste better than any paleo bread I’ve ever had. It was a little dense and didn’t rise as much but it was a first try with seed flour. I did have a reaction from the seeds and the baking soda. Green spots lol. My neighbor said it was the best I have ever made. It will need some tweaking. So Adriana if you find a better way to make this rise better please let me know. It was also a little greasy but just a little. I. Trying pumpkin seeds next. Thank you so much for giving us a great bread recipe that is so versitile. if anyone finds a way to improve this please let me know. You will be very happy if you try this with sunflower seed flour.
Knowing what to eat is part of it, but following this fairly restrictive lifestyle in a modern environment surrounded by cookies and candy and bagels and pasta is really difficult! Factor in the “carb flu” you might go through in the first few weeks (as your body gets weaned off of carbohydrate fuel and habits), and most people give up on the Paleo diet long before it creates lasting change!

My husband and I just started paleo at the beginning of the year and we both knew that giving up bread would be hard. Probably harder for my husband who is a steak bread and potatoe type of guy. We both absolutely loved it. I will have to double the recipe but as for this loaf he added a little butter and honey and said it was extremely filling. Thanks again
Thank you so much for this recipe. I haven t had bread since starting Paleo about 3 1/2 months ago. Then my husband asked me to make him Zucchini Blueberry Bread, which I find irresistible. I made his bread last night then found this recipe. I made it today. I added some shredded zucchini and a handful of blueberries to it. It appeared done after 90 seconds but had a raw section inside. So I simply microwaved it a little more. It was absolutely delicious. Thanks again.

And also I wanted to share that as far as converting measurements to grams…if you look on the bag it will tell you the conversion. For example, my almond flour is 1/4 cup = 28g. This is much more accurate than using a generic conversion chart. Had I used the one listed above in the comments I would have nearly doubled the amount of almond flour. This bread is sadly expensive for me to make…worth it, but expensive. I will be able to get two loaves from one $10 bag of almond flour. Counting eggs and all other ingredients, that’s pricey for 12 slices of bread. However, you get what you pay for, you know? Nutritious food isn’t always cheap, but for your body it should be necessary. I’m learning this as I go. Again, I appreciate this recipe so much!

I enjoyed the concept of this recipe and decided to give it a shot. My gut reaction by looking at the ingredients i though the salt would be too much. I was right. I have tried this recipe twice. Both times it came out entirely too salty. I even halved the salt the second time. This recipe was a total flop for me. I followed the recipe exactly with the slight adjustment to the salt the second time. I think it needs a pinch of salt and maybe less baking powder. Perhaps adding honey or maple syrup will curb the saltiness but that would defeat the purpose of having an unsweetened bread. More experimenting is on the horizon for me. Thanks for sharing.


I want to marry you because of this recipe (okay, maybe a tad dramatic). I only had tapioca starch so made it according to your instructions and subbed the flaxseed meal for chia because that was all I had but this bread turned out perfectly. I’m not exactly paleo and I’m generally a good cook, bad baker but this worked even for the inept baker like me. Thank you so much! Next time, I think I’ll try topping it with sunflower seeds just for an extra bite!
A decade ago, when I was on the low-fat craze, I’d make fluffy cakes using no butter/fat, replacing it with apple sauce, which gives moisture and a soft texture. These days, I’m a low-carb girl, but a 1/4 cup of apple sauce divided by 4 = only 1 tablespoon (per roll/per 2nd day). I’m okay with that, especially because I substitute half the tapioca flour (high-carb) for whey protein powder to cut a few carbs that way. 🙂
Hi Valerie, so funny, I just got asked this question! 🙂 Here’s what I said, “…almond flour is a lot less absorbent than coconut flour (like A LOT). I know a few people have tried using oat flour with success, but I worry that almond flour would not be sufficient for absorbing the almond butter and creating a nice, firm texture. I’d recommend starting with about 3/4 cup almond flour, and experimenting as needed.” Hope this helps!

I just made this and it was super delicious, but a little crumbly. I followed the directions exactly using almond flour, coconut flour and coconut oil instead of the ghee. I’m thinking an extra egg might bind it together a little more and perhaps cooking it just a little bit more, maybe 2 minutes instead of 90 seconds. I’m going to experiment. I also like the idea of using a half Tablespoon of applesauce as well. I have been Paleo for over a year and have really been craving bread. Usually I make pumpkin or zucchini pancakes to take care of it, but sometimes you just want BREAD. This is so easy and so quick and just perfect for one person (my husband doesn’t eat completely Paleo). Thank you. Hopefully my changes will work to make it a little more solid.

Thanks for this recipe.!!! And yes-almond flour can be so expensive… Prevents me from baking more often. The bread came out pretty good; I think I may have slightly over mixed the batter- a little on the flat side. But very tasty. Anyway- heads on sale at website is almond flour!!! I’m stocking UP! http://www.bobsredmill.com/almond-meal-flour.html?&cat=5&gclid=CjwKEAiAjfq2BRDpmdHmssaW5xsSJABToP4lRgdN9_Ei1DoeLx49ZGR6r32JWWvxNnENMQaXWid76hoCYCPw_wcB


Since doing low carb the one thing I’ve really missed is bread. I used to eat it with almost every meal. My wife has been very negative about paleo bread recipes saying that it would be dry and crumbly. Well, I made some bean soup with ham and finally made your microwave bread. IT WAS FANTASTIC!!!!! I gave my wife a bite and she was amazed. It was moist, soft and delicious. Especially good knowing that it’s good for me, with no gluten or any other killers. Thank you so much for this recipe.
The Paleolithic or “Paleo” diet seeks to address 21st century ills by revisiting the way humans ate during the Paleolithic era more than 2 million years ago. Paleo proponents state that because our genetics and anatomy have changed very little since the Stone Age, we should eat foods available during that time to promote good health. Our predecessors used simple stone tools that were not advanced enough to grow and cultivate plants, so they hunted, fished, and gathered wild plants for food. If they lived long enough, they were believed to experience less modern-day diseases like diabetes, cancer, and heart disease because of a consistent diet of lean meats and plant foods along with a high level of physical activity from intensive hunting. However, the life expectancy of our predecessors was only a fraction of that of people today.

The Paleolithic Prescription: A Program of Diet & Exercise and a Design for Living by S. Boyd Eaton, M.D., Marjorie Shostak and Melvin Konner. This book, published in 1988, was the start of the Paleolithic diet movement. Its recommendations are not in line with what today is considered a paleo diet, as whole grain breads and pastas, legumes and some low fat dairy products are allowed. However, it is still a profoundly important book. Used books are available for a reasonable price.
The Paleo diet has become more and more popular over the years, mimicking our ancient ancestors’ most basic diet of vegetables, meats, fruits, and nuts. The Paleo approach is to stay low in the mainstream processed foods that have filled our grocery store shelves and stick to natural food that’s free of additives. The hardest time to avoid these? Dessert! With these Paleo desserts, you get to avoid the added sugars, get full faster, and typically take in fewer carbohydrates.
I am having trouble finding the pan you recommended, it appears to be sold out everywhere I’ve looked??? I can find the 5.5×3.0 and the 9×5. Have you tested different sizes and if so do you have a cooking recommendation? I have tried gluten free recipes in regular loaf pan before and they never turn out….I realize I need a proper pan! Thanks for the help.
Hmm thanks got the answer :). My fitness pal and other nutritional sites seem to give different values. Thanks for the recipe I have been preparing this bread even before I started following Keto. And when started following keto now, was craving for bread and suddenly I reminisced a bread which was very delicious and I prepared in jiffy. I came trailing back my foot steps and landed in your website again after many months.
These donut holes do not add to your waistline, so they’re are a definite win in our books! Make sure you stick to the coconut sugar in this recipe to keep it completely Paleo-friendly. Coconut sugar is derived naturally from the sap of a coconut palm tree. Unlike a white table sugar that has a glycemic index of 65, coconut sugar has a much lower glycemic index of 35.

With a very simple shift we not only remove the foods that are at odds with our health (grains, legumes, and dairy) but we also increase our intake of vitamins, minerals, and antioxidants. Here is a great paper from Professor Loren Cordain exploring how to build a modern Paleo diet: The nutritional characteristics of a contemporary diet based upon Paleolithic food groups. This paper also offers significant insight as to the amounts and ratios of protein, carbohydrate and fat in the ancestral diet.

Mine had a distinct ammonia scent, which I noticed from the comments was an issue for a few other posters as well. My research tells me not enough acid in my batch to neutralize the soda. I may have left it a bit too long in my processor because my coconut oil was lumpy and I was trying to break it up. It tastes a bit like Irish soda bread, which is not my favorite. I’m thinking of experimenting with baking powder instead to suit my personal preference.
I made this bread twice. The first time I followed your recipe exactly, but it came out dry and sort of tasteless. I think it’s because of my elevation and how dry the climate is here, so I added about a 1/4 c maple syrup the second time I made it and it’s perfect! I really like this recipe, and I hope others at high and dry climates don’t give up on it if they have the same problem.
Good to know these can be made without the palm oil. Can’t wait to try them! Many of us looking at these dietary changes see palm oil a lot, and it’s in many things on the grocery shelves. I avoid it completely however as unfortunately it’s production is destroying HUGE amounts of habitat/wildlife so isn’t a good ethical choice. Thanks for your great site!
Experts estimate that our ancestors consumed a one-to-one ratio of calories from meats to produce. Since you have to eat a lot of salad to consume the same amount of calories in a steak, the paleo diet should ideally include mostly fruits and vegetables, Katz says. However, many people don't realize that and eat too much meat. Consuming excess protein and not enough carbs can cause kidney damage and also increase your risk of osteoporosis, Dr. Ochner says. Plus, since most of today's meats are higher in saturated fat than those of yesteryear, it can increase the risk of heart disease, Dr. Katz says.

Some Paleo dieters emphasize that they never believed in one true caveman lifestyle or diet and that—in the fashion of Sisson's Blueprint—they use our evolutionary past to form guidelines, not scripture. That strategy seems reasonably solid at first, but quickly disintegrates. Even though researchers know enough to make some generalizations about human diets in the Paleolithic with reasonable certainty, the details remain murky. Exactly what proportions of meat and vegetables did different hominid species eat in the Paleolithic? It's not clear. Just how far back were our ancestors eating grains and dairy? Perhaps far earlier than we initially thought. What we can say for certain is that in the Paleolithic, the human diet varied immensely by geography, season and opportunity. "We now know that humans have evolved not to subsist on a single, Paleolithic diet but to be flexible eaters, an insight that has important implications for the current debate over what people today should eat in order to be healthy," anthropologist William Leonard of Northwestern University wrote in Scientific American in 2002.

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