Why should I never eat tofu?

Nevertheless, a vitamin B12 deficiency was not found in them more often than is the case in western nations, where many animal products and thus a lot of vitamin B12 are consumed (but rarely live to be 100 years old).

The researchers concluded that there must be vitamin B12 sources in Korean cuisine that are not yet known and suspect that it could be fermented soy products (Doenjang other Chunggukjang) as well as algae. The latter is also repeatedly accused of only containing analogues.

Thus, neither fermented soy products nor algae could prevent the centenarians examined from turning 100, which would have been difficult with a vitamin B12 deficiency.

20. Vitamin D is lacking in soy

Claim: Soy does not contain vitamin D, which is needed for normal growth and strong bones.

ZDG: Soy can cause a lack of calcium and vitamin D, both of which are needed for healthy bones, some anti-soy sites say.

Maybe this is the study you're referring to? It dates from 1946 and is definitely not relevant, since it was carried out with no less than two participants.

This again lists phytic acid as an anti-nutritional substance (which inhibits the absorption of vital substances). However, as we have already seen under 10, phytic acid cannot inhibit calcium absorption to such an extent that it could lead to calcium supply problems, let alone weak bones.

As far as vitamin D is concerned, soy products - like most plant-based foods - are naturally free of vitamin D (exception: mushrooms). Soy critics believe that simply not eating - we quote - "seafood, lard and offal" suffers a vitamin D deficiency. Because only these are the ones that protect against osteoporosis in Asian countries.

Well, according to this table, pork lard provides exactly 0 µg of vitamin D. This is not just any table, but the values ​​of the federal food key, which are always used as reference values ​​for scientific studies. The US authorities do not find any value at all.

Even fresh beef liver provides only 1 µg of vitamin D per 100 g. Calf's liver is even less. The requirement is at least 5 µg (officially). So even with the foods recommended by soy critics, it is not very easy to meet the vitamin D requirement through diet.

However, vitamin D does not have to be taken in with the diet. Food is generally low in vitamin D. Therefore, the body forms the vitamin D quantities it needs best and fastest when it is exposed to the sun. And in the cold season with little sunshine, it is better to use correctly dosed vitamin D supplements than liver sausage, the vitamin D content of which has to be advised and is only minimal anyway.

Apart from that, we had already shown under 9 and 10 that soy products do not pose a risk of osteoporosis.

21. The soybean does not contain any cholesterol

Claim: Soy does not contain cholesterol and is therefore a very bad food because cholesterol is essential for life.

ZDG: Even properties that are said to be beneficial in other foods are suddenly considered terribly unhealthy when combined with the evil soybean. Like all other plant-based foods, soy products are cholesterol-free. But cholesterol - according to the soy opponents - is necessary for the development of the brain and nervous system.

There is hardly any other argument that makes it clearer who is behind it than this: The Weston A. Price Foundation, which wants all of us - and especially children - to drink as much cow's milk as possible and prefer to eat butter, meat, bone broth and offal . It is understandable that in this case you have to love cholesterol.

It is possible that the news that has been known since at least the 1960s that cholesterol can be produced by the body itself and is therefore not considered essential has not yet reached the leaders and supporters of the Weston A. Price Foundation. Yes, cholesterol cannot even cross the blood-brain barrier, so the brain has to completely synthesize the amount of cholesterol it needs, which it can do without any problems. So you can eat as many offal as you want, the brain certainly does not benefit from the cholesterol it contains because it cannot get into the brain.

22. Soy increases the risk of prostate cancer

Claim: On a Paleo website under the title "The Soy Lie" it is written: "In men, the risk of prostate cancer increases with high soy consumption." A meta-analysis from 2009 is cited as evidence for this statement (58).

ZDG: In this meta-analysis it says:

The results of this meta-analysis indicate that the consumption of soy products plays a protective role in relation to prostate cancer. It is possibly the weak, estrogen-like effects of isoflavones that can help prevent prostate cancer. Our results should be reviewed in future studies.

In 2018 appeared in Nutrients then another meta-analysis on this topic (59). In the corresponding summary one reads:

This meta-analysis is a comprehensive and updated analysis showing that soy foods and their isoflavones (genistein and daidzein) are associated with a lower risk of prostate cancer. Thirty studies were analyzed. Consumption of unfermented soy products resulted in a reduced risk of prostate cancer. The consumption of fermented soy products showed no such correlation.

23. Soy has a bad ecological balance

Claim: Soy products are laboriously processed and a lot of energy is required to finally turn them into soy milk or soy sausages. The ecological balance of soy products is therefore bad.

ZDG: Taifun's Tofu Viennese, for example, have a CO2-Balance of 0.79 kilograms of CO2 per kilogram of tofu wiener (ex works) (56). On the other hand, 13.3 kilos of CO are converted per kilogram of beef2 released. There is 0.75 kg of CO per kilogram of mixed bread2, per kilogram of apples 0.5 kilograms of CO2 and 0.2 kg of CO per kilogram of tomatoes2 (57). So the ecological balance of soy products is by no means bad. In fact, it's very good - especially when you consider how nutritious it is.

The power-hungry soy industry

It is interesting that in connection with the "commercial profit-oriented propaganda for soy" of "lies and deceit, of power and greed, corruption and opportunism in business and science" as well as of a "refined, perfidious and unscrupulous marketing strategy the gigantic US food industry "is the talk of the town.

Of course, it cannot be denied that the soybean industry is also thinking of profit - just like any other industry, e. B. the meat and dairy industry, which also acts much more aggressively in public. Because how often do you see advertisements for tofu & co? And how often do you see advertisements for yogurt, sour milk, sausage, etc.?

In addition, factory farming in particular can be described as perfidious and unscrupulous, in which millions of animals stand tightly lined up under the most unworthy circumstances, are fed with GM soy and GM maize and after a few months are carted through half (or all of) Europe to end up on the plate for meat, sausage and ham. A condition that, hopefully not for long, will cause our posterity to shake their heads in disbelief at the cruelty, insensitivity and thoughtlessness of their ancestors - their ancestors, who preferred to grumble and - as we have shown above - completely unnecessarily pounce on the soybean instead to dedicate oneself to the abolition of a torture called meat and milk production.

Soy is - if it is eaten in the form of wholesome soy food and not in excess - neither harmful to health nor carcinogenic. Soy does not make you sterile, and foods made from soy are difficult to digest. Likewise, the low soy content of a plant-based diet does not destroy the environment. On the contrary.

And that is exactly what is at the end of the 450-page anti-soy tome by Kaayla T. Daniel: "Old-fashioned whole-food soy foods that are quite health-promoting when consumed in moderation had to give way to substitute products that inevitably lead to malnutrition and disease. " (By "substitute products" she means protein isolates, soy baby food, soy flour, soy oil and preparations with isolated isoflavones - ZDG editors note).

So a monster work is written, only to admit in the end that moderate amounts of tofu & Co. are okay, even healthy. Did one of the soy haters read the book to the end?

Healthy Soy Consumption - What To Look For

Here we summarize again what to look out for when consuming soy foods:

  1. As with any food, when buying soy products, you should use natural products from high-quality manufacturers, such as: B. on tofu, soy milk, soy yoghurt, soy cream cheese, etc. from Soyana.
  2. Of course you choose soy products in organic quality - ideally made from German or Austrian soybeans.
  3. Of course, you don't eat exclusively soy products, so you don't drink gallons of soy milk every day and you don't eat a pound of tofu a day. Instead, 100 g of tofu and z. B. 200 ml soy milk for an adult is no problem.
  4. Soy is not a baby food. Infants should therefore not be fed soy baby food.
  5. Soy products such as soy protein isolates and textured soy (e.g. soy slices, soy granules) are usually not recommended.
  6. Food supplements with highly concentrated and isolated soy isoflavones are not recommended.

Note: For the sake of completeness, we are happy to confirm that our article has not been sponsored or otherwise supported by the soy industry and that we have not fallen into the hands of any conspirators, Illuminati, high finance or other "dark powers" who would have forced us to gain the reputation of Save soybean.


Your donation helps us

If you enjoyed this article, we would appreciate a small contribution to our work! Donate now with Paypal.


Distance training to become a holistic nutritionist

Are you interested in what's in our food and want to know how nutrients and vital substances affect the body? Do you want a healthy life for yourself, your family and fellow human beings? Nutritionists are popular - but the holistic aspect that is needed for sustainable health is often forgotten when giving advice. At the Academy of Naturopathy, you will get to know the connections between lifestyle and diet as well as physical and psychological well-being.

That educates interested people like you in around 16 months to become a holistic nutritionist out.

Is this article worth reading?

Share this article


  1. Weston A. Price Foundation, Soy Alert, as of October 14, 2017, (Soja Alarm) Boyd T, Myths & Truths About Soy, German Translation, February 19, 2017, (Fairy tales and truths about soy), German translation by Herbert Nehrlich Dagmar Ehling, MAc, LAc, DOM
  2. Nienhiser JC, Soy Alert! Brochure, The Weston A. Price Foundation, March 9, 2009, (Soy Alert! Brochure) Daniel KT, Soy The Whole Truth, Kopp Verlag, January 2016, ISBN-10: 3864452775, ISBN-13: 978-3864452772
  3. Knobloch N, Soja = special toxic waste, January 28, 2012, MMnew
  4. Metz G, Versatile hormones from soy and flax, Pharmazeutische Zeitung, 2000
  5. White LR et al, Brain aging and midlife tofu consumption, Journal of the American College of Nutrition, 2000 Apr; 19 (2): 242-55, (brain aging and tofu consumption in middle age)
  6. Adams M, Soy Protein Used in "Natural" Foods Bathed in Toxic Solvent Hexane, Natural News, May 20, 2009,
  7. Hollingsworth E, Eating Soy Foods Will Destroy Your Thyroid and Leach Calcium from Your Bones, Doctors are Dangerous,
  8. Fitzpatrick M, Soy formulas and the effects of isoflavones on the thyroid, The New Zealand Medical Journal, February 2000, (Soy and the effects of isoflavones on the thyroid)
  9. Charlotte Gerson, Gerson Clinic: Cancer Research, Jun 1, 2001, p. 61
  10. Dees C et al, Dietary Estrogens Stimulate Human Breast Cells to Enter the Cell Cycle, Environmental Health Perspectives, 1997 Apr; 105 Suppl 3: 633-6, (Dietary estrogen stimulates human breast cancer cells to enter the cell cycle)
  11. Ishisuki Yet al, The Effects on the Thyroid Gland of Soybeans Administered Experimentally in Health Subjects, Nihon Naibunpi Gakkai zasshi, 1991 May 20; 67 (5): 622-9, (The effect of experimentally administered soybeans on the thyroid in healthy volunteers)
  12. Principles of Healthy Diets, The Weston A. Price Foundation, Jan. 1, 2000, (Principles of Healthy Diets)
  13. Nienhiser J, Dietary Guidelines, The Weston A. Price Foundation, Jan. 1, 2000, (Dietary Guidelines)
  14. Wilcke H, Soy Protein and Human Nutrition, Elsevier, 1979, (Soy Protein and Human Nutrition)
  15. Kattan JD et al, Milk and Soy Allergy, Pediatric Clinics of North America, 2011 Apr; 58 (2): 407426, (milk and soy allergy)
  16. Prevalence of food allergies, Institute of Agriculture and Natural Resources,
  17. Lanou AJ, Soy foods: are they useful for optimal bone health ?, Therapeutic Advances in Musculoskeletal Disease, 2011 Dec; 3 (6): 293300, (Soy foods: are they useful for optimal bone health?)
  18. Schlemmer U et al, Phytate in foods and significance for humans: food sources, intake, processing, bioavailability, protective role and analysis, Molecular Nutrition & Food Research, 2009 Sep; 53 Suppl 2: S330-75, (Phytate in Lebensmittel und Signifikanz for humans: food sources, ingestion, processing, bioavailability, protective role and analysis)
  19. Malinow MR et al, Effect of alfalfa saponins on intestinal cholesterol absorption in rats., The American Journal of Clinical Nutrition, 1977 Dec; 30 (12): 2061-7, (Effect of saponins from alfalfa on intestinal cholesterol absorption in rats)
  20. Hiromichi Matsuura, Saponins in Garlic as Modifiers of the Risk of Cardiovascular Disease, The Journal of Nutrition, March 1, 2001, (Saponins in Garlic as a Risk Modifier of Cardiovascular Disease)
  21. Coleman J et al, Characterization of Plant-Derived Saponin Natural Products against Candida albicans, ACS Chemical Biology, 2010, 5 (3), pp 321332, (characterization of plant-derived saponin natural products against Candida albicans)
  22. Jyothi KS et al, In-Vitro Activity of Saponins of Bauhinia Purpurea, Madhuca Longifolia, Celastrus Paniculatus and Semecarpus Anacardium on Selected Oral Pathogens, Journal of Dentistry of Tehran University of Medical Sciences, 2012 Autumn; 9 (4): 216223, (In vitro activity of saponin from Bauhinia Purpurea, Madhuca Longifolia, Celastrus Paniculatus and Semecarpus Anacardium on selected oral pathogens)
  23. Rao AV et al, Saponins as anticarcinogens, The Journal of Nutrition, 1995 Mar; 125 (3 Suppl): 717S-724S, (Saponins as anticarcinogens)
  24. Podolak I et al, Saponins as cytotoxic agents: a review, Phytochemistry Reviews, 2010 Sep; 9 (3): 425474, (Saponins as Cytotoxic Agents: A Review)
  25. Jagadeesan J et al, Diosgenin, a steroidal saponin, exhibits anticancer activity by attenuating lipid peroxidation via enhancing antioxidant defense system during NMU-induced breast carcinoma, Journal of Environmental Pathology, Toxicology and Oncology, 2012; 31 (2): 121-9, (Diosgenin, a steroidal saponin, shows anticancer activity by dampening lipid peroxidation via improved antioxidant defense system during NMU-induced breast cancer)
  26. Abba G et al, Saponins: the phytochemical with an emerging potential for curing clinical depression, Natural Product Research, 2015; 29 (4): 302-7, (Saponins: The phytochemical with an emerging potential for curing clinical depression)
  27. Marrelli M et al, Effects of Saponins on Lipid Metabolism: A Review of Potential Health Benefits in the Treatment of Obesity, Molecules, 2016 Oct 20; 21 (10), (Effect of Saponins on Lipid Metabolism: A Review of Potential Health Benefits in the Treatment of obesity)
  28. Fenwick DE et al, Saponin content of food plants and of some prepared foods commonly eaten in Australia, Proceedings of the Nutrition Society of Australia, 1982,
  29. Francis G et al, The biological action of saponins in animal systems: a review, The British Journal of Nutrition, 2002 Dec; 88 (6): 587-605, (The biological activity of saponins in animal systems: A review)
  30. Price KR et al, The chemistry and biological significance of saponins in foods and feedingstuffs, Critical Reviews in Food Science and Nutrition, 1987, (The chemical and biological significance of saponins in food and feed)
  31. Seppen J, A diet containing the soy phytoestrogen genistein causes infertility in female rats partially deficient in UDP glucuronyltransferase, Toxicology and Applied Pharmacology, 2012 Nov 1; 264 (3): 335-42, (A diet with the soy phytostrogen genistein causes infertility in female rats, some of which are deficient in UDP glucuronyltransferase)
  32. Mnguez-Alarcn L et al, Male soy food intake was not associated with in vitro fertilization outcomes among couples attending a fertility center, Andrology, 2015 Jul; 3 (4): 702-8, (Soy consumption in men was not associated with the in- vitro fertility in couples who fertilize artificially)
  33. Hoff-Jrgensen et al, The Effect of Phytic Acid on the Absorption of Calcium and Phosphorus, Biochemical Journal, 1946, (The effect of phytic acid on calcium and phosphorus absorption)
  34. Mellanby E, The rickets-producing and anti-calcifying action of phytate, The Journal of Physiology, 1949 Sep 15; 109 (3-4): 488533, (The rickets-producing and anti-calcifying effects of phytate)
  35. House WA et al, Effect of phytic acid on the absorption, distribution, and endogenous excretion of zinc in rats, The Journal of Nutrition, 1982 May; 112 (5): 941-53, (Effect of phytic acid on absorption, distribution and endogenous excretion of zinc in rats)
  36. Lpez-Gonzlez AA et al, Phytate (myo-inositol hexaphosphate) and risk factors for osteoporosis, Journal of Medicinal Food, 2008 Dec; 11 (4): 747-52, (Phytate (myo-inositol hexaphosphate) and risk factors for osteoporosis)
  37. Lpez-Gonzlez AA et al, Phytate levels and bone parameters: a retrospective pilot clinical trial, Frontiers in Bioscience, 2010 Jun 1; 2: 1093-8, (Phytate levels and bone parameters: a retrospective pilot clinical trial)
  38. Lpez-Gonzlez AA et al, Protective effect of myo-inositol hexaphosphate (phytate) on bone mass loss in postmenopausal women, European Journal of Nutrition, 2013 Mar; 52 (2): 717-26, (Protective effect of myo-inositol hexaphosphate (Phytate) on loss of bone density in postmenopausal women)
  39. Del Mar Arriero M et al, Inositol Hexakisphosphate Inhibits Osteoclastogenesis on RAW 264.7 Cells and Human Primary Osteoclasts, PLOS One, 2012; 7 (8): e43187, (Inositol Hexakisphosphate inhibits osteoclast genesis in RAW 264.7 cells and human primary osteoclasts)
  40. Kwak CS et al, Discovery of Novel Sources of Vitamin B12 in Traditional Korean Foods from Nutritional Surveys of Centenarians, Current Gerontology and Geriatrics Research, 2010; 2010: 374897, (Discovery of New Vitamin B12 Sources in Traditional Korean Foods in Centenarian Nutrition Surveys)
  41. Messina M et al, Estimated Asian Adult Soy Protein and Isoflavone Intakes, Nutrition and Cancer, November 18, 2009, (Protected intake of soy protein and isoflavones in Asian adults)
  42. Isoflavones contents of food, Isoflavone.info, (isoflavones contents of food)
  43. Piotrowska E et al, Two-year follow-up if Sanfilippo Disease patients treated with a genistein-rich isoflavone extract: assessment of effects on cognitive functions and general status of patients, Medical Science Monitor, Apr 2011; 17 (4): CR196- 202, (Two-year follow-up of Sanfilippo disease patients treated with a genistein-rich isoflavone extract: assessment of the effect on cognitive functions and the general status of the patients)
  44. Henderson VW et al, Long-term soy isoflavone supplementation and cognition in women: a randomized, controlled trial, Neurology, Jun 2012; 78 (23): 1841-8, (Long-term soy isoflavone supplementation and cognition in women: a randomized , controlled study)
  45. Soni M et al, Phytoestrogens and cognitive function: a review, Maturitas, March 2014; 77 (3): 209-20, (Phytostrogens and cognitive function: a literature study)
  46. Yang HJ et al, Fermenting soybeans with Bacillus licheniformis potentiates their capacity to improve cognitive function and glucose homeostaisis in diabetic rats with experimental Alzheimer's type dementia, European Journal of Nutrition, Feb 2015; 54 (1): 77-88, (Fermenting soybeans with Bacillus licheniformis potentiates their ability to improve cognitive function and glucose homostasis in diabetic rats with experimental Alzheimer's disease.)
  47. Gleason CE et al, Cognitive effects of soy isoflavones in patients with Alzheimers disease, Journal of Alzheimers Disease, Aug 2015; 47 (73): 1009-19, (Cognitive effects of soy isoflavones in patients with Alzheimer's disease)
  48. Lehert P et al, Individually modifiable risk factors to ameliorate cognitive aging: a systematic review and meta-analysis, Climateric: The Journal of the International Menopause Society, Oct 2015; 18 (5): 678-89, (Individually modifiable risk factors for improvement of Cognitive Aging: A Systematic Review and Meta-Analysis)
  49. Thaung Zaw JJ et al, Does phytoestrogen supplementation improve cognition in humans? A systematic review, Annals of the New York Academy of Sciences, Sep 2017; 1403 (1): 150-163, (Does phytostrogen supplementation improve cognition in humans? A systematic review)
  50. Neither JK et al, Model studies on the heating of food proteins. Amino acid composition of lysozyme, ribonuclease and insulin after dry heating, Journal for food research and research, 1983; 176 (6): 421-5, (Model study on the heating of food proteins. Amino acid composition of lysoenzymes, ribonuclease and insulin after dry heating )
  51. Shamanthaka Sastry MC et al, Effect of heat processing on phenolic constituents and nutritional quality of sunflower flours, Journal of the American Oil Chemists Society, July 1985, (Effect of heat processing on phenolic constituents and nutritional quality of sunflower flours)
  52. Hartman GL et al, Crops that feed the World 2. Soybeanworldwide production, use, and constraints caused by pathogens and pests, Food Security, March 2011, (Plants that feed the world. 2. Soybean worldwide production, use and by pathogens and Restrictions caused by pests)
  53. Thoenes P, Soybean International Commodity Profile - Background paper for the Competitive Commercial Agriculture in SubSaharan Africa (CCAA) Study, World Bank,
  54. Agralytica Consulting, Soybean Market Scan - A Report for United Soybean Board, unitedsoybean.org, November 7, 2012, (Soybean Market Research - A Report for the United Soybean Board)
  55. Genetic engineering and food 2013 - the test results from Baden-Württemberg, CVUA Freiburg, 2013
  56. Typhoon tofu, consistently ecological, accessed on November 30, 2020
  57. Greenpeace, Meat - What does a piece of vitality cost? Retrieved on November 30, 2020
  58. Hwang YW, Kim SY, Jee SH, Kim YN, Nam CM. Soy food consumption and risk of prostate cancer: a meta-analysis of observational studies. Nutr Cancer. 2009; 61 (5): 598-606. doi: 10.1080 / 01635580902825639. PMID: 19838933.
  59. Applegate, C.C .; Rowles, J.L., III; Ranard, K.M .; Jeon, S .; Erdman, J.W. Soy Consumption and the Risk of Prostate Cancer: An Updated Systematic Review and Meta-Analysis.Nutrients201810, 40. https://doi.org/10.3390/nu10010040

Notice on health issues

This information is passed to the best of my knowledge and belief. They are intended exclusively for those interested and for further training and are in no way to be understood as diagnostic or therapeutic instructions. We do not assume any liability for damages of any kind that arise directly or indirectly from the use of the information. If you suspect illness, please consult your doctor or alternative practitioner

Subscribe to Newsletter

Exciting information about health and nutrition
1x per month

Login Successful. You will shortly receive a confirmation at the specified email address.

With your registration you allow the regular sending of the newsletter and accept the data protection regulations.

HEALTH CENTER © 2021 Neosmart Consulting AG. All rights reserved.