(The Calorie Paradox of Raw Veganism--continued, Part F)
REALITY CHECK #4:
What is Your Primary Calorie Source? |
If you stop and think about what you eat every day, the calorie table presented earlier will give you an idea of what your primary calorie sources are. You may be eating a lot more fat (via avocados and nuts, or even the oil in salad dressing) than you expect. (Raw fat is not as bad as cooked fat, and may be healthy for many. Still, you might not want a very high-fat diet in the long-term.) Alternately, you might be getting most of your calories from sugar--fruit sugar. Another calorie source is cooked foods, especially cooked starches. Some may find cooked starches to be preferable to a diet in which raw fat (or fruit sugar) is the predominant calorie source.
Finally, some rawists try to follow an extreme, puritanical diet that provides inadequate calories (or nutrition), and then they actually get their calories via binge-eating or "exceptions" (cheating on the diet).
Why 100% raw vegans eat so much avocado and nuts, or overeat sugar (fruit) |
Given the above, we can now say that raw vegans eat significant amounts of avocados and nuts for two primary reasons:
- They NEED the calories provided.
- They NEED the fat (essential fatty acids).
Your body knows it needs energy and essential fatty acids--even if the ego is deluded by dietary dogma that suggests you can live on just cucumbers or green juice or even sweet fruits. This is why many raw-fooders experience strong cravings for fat, usually in the form of avocado (or alternatively, nuts).
As for sugar, fruitarians must eat a large volume of fruit each day to satisfy their calorie requirements. In so doing, they ingest a large amount of sugar as well. Sugar is addictive and promotes cravings. Like a junkie who can't get enough drugs, it is hard to get "enough" sugar. Further, a significant amount of willpower is required to resist the frequent sugar cravings, which often leads to food (and self) obsessions (very common in fruitarianism).
The calorie paradox explains why prominent (raw) organizations endorse/allow cooked (starch) foods |
The American Natural Hygiene Society (ANHS) and The Hippocrates Institute both suggest a maintenance diet that includes or allows for cooked foods. In both cases, (clean, basic) starch foods are included in the suggested cooked foods. I cannot and do not speak for the ANHS or Hippocrates; however, some reasons for their suggestions are as follows:
- Solves the calorie paradox by providing calories that are lacking in more puritanical raw vegan diets, and avoids the dependence on sugar or fat that characterizes most 100% raw vegan diets.
- Cooked starch foods do not promote cravings as strongly as sugar does.
- A combined raw/cooked diet often works in the long run, while 100% raw vegan diets most often do not work in the long run.
(References: The Natural Hygiene Handbook, p. 47; also Living Foods for Optimal Health, by Brian Clement.)
What raw vegans can do to partially mitigate the calorie paradox |
There are a few things that raw vegans can do to reduce the impact of the calorie paradox. A partial list of these mitigations is as follows.
- Include avocados as a regular part of your diet. To minimize possible problems from the insulin-inhibiting sugar in avocados, consume them separately from sweet and/or starchy foods. (Avocados are very popular with raw vegans; the calories here primarily come from fat.)
- Consume calorically significant amounts of nuts and oily seeds, dry or sprouted, as a regular part of your diet--e.g., 1-day sunflower seed sprouts, sesame sprouts, almond sprouts, etc. Make milk substitutes/analogues from nuts and oily seeds, to increase your calorie intake. (The calories here are primarily from fat.)
- Consume raw sprout breads, to increase your consumption of grain sprouts. Recipes for sprout bread can be found in a number of raw (recipe) books. (The calories here are primarily from starch.)
- Adopt a combined raw + cooked diet, where the cooked food includes some starch foods, an easily digested source of calories, and/or some cooked legumes. Note here that one should just ignore the extremists who promote crank mal-nutritional claims that cooked foods, starch, and/or protein are poisonous. (The calories here are primarily from starch.)
- If you eat sweet fruit, consume it in moderation. Modern fruit is so high in sugar that some authors (e.g., Brian Clement of the Hippocrates Institute) make the sensible recommendation that sweet fruit juices be diluted with water before consumption. Although they are higher in calories than a number of other raw vegan foods, the high sugar content of sweet fruits may promote cravings if consumed in excess. (The calories here are primarily from sugar.)
- Blend coarse vegetable foods into raw soups; e.g., Ann Wigmore's energy soup or the blended salads suggested by Dr. Stanley Bass. This helps you to eat more of these foods. Note: this has limited utility calorie-wise, but is nutritious and worthwhile in its own right, as it provides ample vitamins and minerals. Also, you can increase the calorie level of blended foods to significant levels by including avocado or soaked/sprouted nuts. (The calories here are primarily from protein.)
Ultimately, the solution to the calorie paradox can only come by consuming, in some manner, the calories required. Assuming one is a vegan, the majority of these calories will come from fat (avocados, nuts, tahini), sugar (fruit), or starch (cooked, or raw, perhaps as sprouts). Those who adopt 100% raw exclude, in theory, cooked starch as an option, but such people often end up eating cooked starch (and junk) anyway via binges. If that describes you, perhaps you should consider facing the situation, and deliberately include some cooked starch in your diet. After all, isn't it better to eat some cooked food and be honest about it, than to claim the "honor" of the ideal of 100% raw, while you binge-eat in secret?
Ranking the workability of various 100% raw vegan diets |
Based on the calorie data here, plus extensive anecdotal evidence of individuals attempting 100% raw or predominantly raw diets in the real world, the following is an ordered list of 100% raw diets, from most likely to least likely to succeed.
100% raw diets that are most likely to be successful:
- A diet in which raw fat (avocados, nuts) is the primary calorie source, and where sweet fruit has a very minor role.
- A diverse diet in which raw sprouts (nuts/seeds and grains) are the predominant calorie source.
- A raw diet in which starchy tubers are the predominant calorie source (though raw tubers are considered unappetizing by many).
100% raw diets that are most likely to fail:
- A diet based on cucumbers and sweet fruit (this may, in effect, constitute anorexia--though the motivations are much different than "traditional" anorexia, of course--and/or the "expert" may be lying about his/her diet).
- A diet that is predominantly sweet fruit.
Readers should be aware that 100% raw vegan diets have a dismal record of failure in the long-term. Surprisingly, mixed diets (i.e., raw plus cooked) have a better record of success, in the long-term, than do 100% raw diets.
Some extremists may attempt to (falsely) characterize this paper as promoting overeating. The whole point of this paper, however, is that if one tries to be 100% raw vegan, then one must eat some concentrated foods, or they will end up (by default) overeating the lower-calorie-density foods. This point follows from the existence of lower limits for calorie consumption and the density of calories in each food/type. Strategies for mitigating the impact of the paradox have been provided here, as well as information promoting the realistic attitude that one must consume some concentrated foods as part of a balanced, diverse diet to satisfy calorie requirements without overeating.
Postscript: Foods Not Mentioned |
Protein: Protein certainly can provide calories, as your body will burn protein for fuel (energy) when appropriate, but protein is the body's least-preferred calorie source. However, when the more optimal fuels--carbohydrates (sugar, starch) and fats--are not available in adequate quantities, the body can and will increase its normally moderate use of protein as fuel. Also, the high-protein vegan foods are already discussed above (legume sprouts, nuts, seeds). As the protein content of these foods is a small part of their total calories, and the foods are already included in the analysis, it was not necessary to discuss protein separately.
Acid Fruits: The common acid fruits--grapefruit, pineapple, kiwi--are high enough in sugar that they can also be considered sweet fruits. The other acid fruits--lemons, limes, kumquats--are usually consumed in small quantities and can be ignored for our analysis here.
Oils: Oils are pure fat, 9 calories per gram. Many raw-fooders claim they avoid oils, so they were not included in the analysis. Despite this, oils can be used in moderation, as a part of a diverse raw diet, and are a high-calorie food.
Animal Foods: Though this article has been oriented toward raw vegan individuals, it is worth mentioning one of the reasons why the human metabolism requires a certain quota of concentrated foods. The evolutionary evidence from Paleolithic diet research suggests a primary reason is due to the adaptation of the human gut to increased percentages of denser animal food that occurred in the diet after the split from the common evolutionary ancestor that humans share with our primate cousins. While there are also similarities between human and ape guts, of course, this divergence represents one of the key differences between ours and theirs.
Given that vegans eschew animal foods, some type of concentrated food must be provided in the diet in place of the amounts of concentrated animal food that the human gut originally evolved to handle and became dependent on for efficient energy metabolism. (See the discussion Co-evolution of Increased Human Brain Size with Decreased Size of Digestive System in the postscript to Part 1 of the Paleolithic Diet vs. Vegetarianism interviews [about halfway down on the linked page] for more about this point.)
The suggestion here that raw vegans should consume some concentrated foods to get sufficient calories is confirmed by real-world experience from the traditional diet of one of the more well-known hunter-gatherer groups, the Australian Aborigines. In "Traditional diet and food preferences of Australian Aboriginal hunter-gatherers," by Kerin O'Dea (Phil Trans R Soc Lond B, 1991, vol. 334: pp. 233-241), O'Dea notes (p. 238): "Nevertheless, it is significant that in a diet that was generally characterized by its low energy density, the foods most actively sought and most highly prized were those that had a high energy density. Clearly this was an important survival strategy."
Finally, readers with an interest in animal foods might want to read the article, "Nature and variability of human food consumption," by D.A.T. Southgate (Phil Trans R Soc Lond B, 1991, vol. 334: pp. 281-288). Table 6 in Southgate, p. 286, is similar to the table in this article, but includes a wide array of animal foods as well. [Please note that this article was written (excluding, of course, this paragraph) some months before I saw the article by Southgate.]
In Closing: |
Advice to Readers |
Please don't be afraid of raw vegetables, fruits, cucumbers, tomatoes, or legume sprouts because of this paper. Don't try to live on only nuts, avocados and/or wheat sprouts because of this paper. Instead, choose a DIVERSE diet that includes raw vegetables, fruits, sprouts, nuts, avocados, seeds, and if you are open to the possibility, other foods as well (e.g., cooked foods, raw dairy, raw honey, and even animal foods if you have no objections). The message of this paper is that diversity in diet is an important part of the solution to the calorie paradox, and that food phobias or food obsessions (common problems in raw) are to be avoided.
In closing, since so many rawists are deeply concerned about food issues, it seems appropriate to remind readers of some basic common sense, as follows:
- Raw veganism is just a diet, nothing more. Many people are very healthy on other diets--including those that contain cooked foods and/or animal products. Remember that your health is more important than idealistic raw dogma (much of which is false anyway).
- Follow raw-foods dogma ONLY as far as it supports good health for you. Discard any and all aspects of raw veganism that do not support this goal.
- Finally, as many raw vegans become deeply entangled in idealistic dietary dogma, remember: At all times, in all circumstances, the diet must serve you. Never let dietary dogma dominate you--when that happens, the diet is eating you, rather than you eating the diet!
APPENDIX 1:
Primary Calorie Sources for Raw Vegans--Summary |
The following are generalizations based on the nature of raw vegan diets as commonly practiced. Diet varies by individual, so the list below should be considered as a general description, and not a prescription.
- 100% raw veganism, when it works:
- Living-Fooder: Fats (avocado, nuts, tahini) and starch (sprouts).
- Fruitarian: sugar (sweet fruits) and fat (avocados).
- Natural Hygienist: varies per individual style of natural hygiene--ranges from the fruitarian model to the living-foods model.
- 100% raw veganism, when it doesn't work:
- Whatever foods you are consuming when binge-eating/"cheating"/making "exceptions."
- 75% raw + 25% cooked, veganism:
- Cooked starches and fats (avocado, nuts, tahini).
APPENDIX 2:
Details of Table and Calculations |
- ANHS: Calorie/pound data are from The Natural Hygiene Handbook.
- USDA: Calorie/100 gm data are from The Composition of Foods, (Handbook series) from the U.S. Department of Agriculture. The following Handbooks were used in this paper: 8-9 (1982), 8-11, 8-12 (both 1984), 8-16 (1986), 8-20 (1989).
- Milk article: Fruit Is Not Like Mother's Milk, with accompanying documentation, available on this site. The "4 sweet fruits" blend is an average of: apple, mango, orange, watermelon.
- Note that the calorie data for the "4 fruits blend" is net--edible portion only, excluding waste. Per the USDA handbook, the 4 fruits have the following waste percentages (inedible peel, seeds, etc.): apple 8% (core and stem only), oranges 27%, mangos 31%, watermelon 48% (rind, seeds, cutting loss); average is 28.5%. This gives an adjustment factor = 1 - 0.285 = 0.715, used in the text (not the table) to give a total raw weight for the 4-fruit blend. Reference: USDA Handbook 8-9, pp. 23-24, 179, 168, 283.
- Sweet fruit juice is average of grape (61 cal/100 gm, 14.96% CHO), orange (45, 10.40%), pineapple juice (56, 13.78%); reference: USDA Handbook 8-9, pp. 139, 184, 232. Average is 54 calories/100 gm, average carbohydrate content (mostly sugar) is 13.05%. 1 cup = ~250 grams of juice, so 1 quart weighs very close to 1 kg (within 1%).
- Dried fruit is average of: apricots (238 cal/100 gm, 61.75% CHO), figs (255, 65.35%), prunes (239, 62.73%), seedless raisins (300, 79.13%); reference: USDA Handbook 8-9, pp. 52, 104, 249, 257. Average is 258 cal/100 gm; carbohydrate content (mostly sugar): 67.24%.
- Neutral fruit section: calorie data come from USDA Handbook 8-11, pp. 155, 178, 183, 241, 283, 394, 401, 450; also USDA Handbook 8-9, pp. 89, 152, 158.
- Note on sugar estimates: the vast majority of the carbohydrate in sweet fruits is in the form of sugars. However, the USDA data provides only total carbohydrates--no breakdown of sugars. The total percentage of carbohydrates is used as an estimate of the sugar content of sweet fruit in the calculations for this paper. The effect of this is that the sugar estimates may be overestimates by a slight margin. Please keep this in mind when considering the sugar consumption estimates.
- Sprouted legumes are the average of: mung beans (30 cal/100 gm), lentils (106), peas (128), soybeans (128); reference: USDA Handbook 8-11, pp. 64, 218, 272, 382. Average is 98 calories/100 gm. The length of the sprouts is not supplied in the USDA handbook. Age and length of sprouts may cause the actual nutritional composition to vary.
- Cooked legumes are the average of: mung beans (105 cal/100 gm), lentils (116), peas (118), soybeans (173); reference: USDA Handbook 8-16, pp. 106, 92, 108, 130. Average is 128 calories/100 gm.
- Sprouted wheat data is from USDA handbook 8-20, p. 101.
- The estimate for soaked nuts/seeds is based on the ANHS numbers. The assumption is that sprouting time will be short, so calorie composition does not change much, and one can divide the calories in half to account for increased weight due to absorbed water. (As nutritional analyses for sprouted nuts are not available, the use of estimates is necessary.)
- The ANHS estimate of 2,500 calories per pound for nuts may be a bit low, but it is used here anyway. The figure of 2,500 calories per pound also covers oily seeds. Per USDA Handbook 8-12, pp. 114, 118, 131, we have pumpkin seeds (541 cal/100 gm), sesame (573), sunflower seeds (570). This gives an average 561.3 cal/100 gm, or ~2,546 cal/pound. For select nuts, the same USDA Handbook (pp. 24, 85, 89, 100) lists almonds (589 cal/100 gm), peanuts (567--peanuts are a legume but are eaten like nuts), pecans (667), English walnuts (642). This gives an average of ~616 cal/100 gm, or ~2,795 cal/pound.
--Tom Billings
Before writing to Beyond Veg contributors, please be aware of our
email policy about what types of email we can and cannot respond to.
BACK TO BEGINNING OF ARTICLE
See TABLE OF CONTENTS
Back to Frank Talk from Long-Time Insiders