There has recently been a lot of debate when it comes to soy and whether or not it is healthy for you. While some nutritionists believe that increasing your intake of soy products can be nothing but beneficial, others say some soy products can be harmful to our health if eaten too often. Another part of the discussion is that we often consume soy in products we don’t even know contain it. Hopefully after reading both sides of the debate you will be able to make a more informed decision about your food choices for yourself and your family.
Ling Wong, a Certified Holistic Health Counselor and AADP Nutrition and Wellness Coach, says her opinion is that the problem comes from the way soy is consumed today. The soy products that have been used in Asian culture for centuries were generally in a fermented form that allows the toxins to be neutralized. Today, Wong says, many of the commercially available soy products have been genetically modified, processed and extracted into forms that are not natural. Because the soy in many of these products is concentrated, the effects of the anti-nutrients and estrogenic properties are potentially magnified.
“These products have not be around long enough for us to know the impact on human health,” Wong points out. “They are also added to many packaged foods, so we may be eating soy without even knowing it – and therefore eating more than what people would have eaten in the past when soy products came in more ‘recognizable’ forms.”
Amy Hendel, a Registered Physician Assistant, health coach, and author of the book The 4 Habits of Healthy Families, agrees that many of us eat soy components without knowing it as we often don’t read food labels closely enough. However, she believes that soy products can be incorporated into a balanced diet as an excellent source of protein.
“Soy may be similar to unprocessed forms of most other foods in that they are a bit healthier and may impart more clear health benefits than their processed counterpart,” Hendel said. ”Soy is a complete protein and therefore is an excellent way to get the vitamins, calcium, iron and phytonutrients that soy offers.”
Hendel recommends that people consume two to three servings of soy food products each day, or around 25 grams of unprocessed soy. You can visit SoyConnection.com/recipes for tasty soy recipe ideas for the whole family.
Hendel says several recent studies suggest that soy supplements may have the ability to help women find relief from hot flashes during menopause and certain compounds found in soy may have heart health benefits, specifically for patients with diabetes.
“Soy consumption is also associated with a decreased risk of certain cancers, heart disease and may offer protective benefits in certain breast cancer patients and survivors,” Hendel said.
Soy is often fortified with calcium and vitamin D, and is also a good source of iron and omega-3 fatty acids. Like many nutritionists, Hendel says Americans are eating far too many proteins that are accompanied by saturated, artery-clogging fat. As a way to cut back on these unhealthy ingredients, Hendel suggests including soybeans, tempeh, tofu and soymilk in a balanced daily diet as a way to boost protein without all the saturated fat.
Susan Schneck, author of the books The Live Food Factor and Beyond Broccoli, sees soy and soy based products in a much darker light. She says it is all too often being used as just a highly over-processed filler. This over-processing in soy takes out the positive benefits of it and replaces them with negative effects.
Schneck says some of the negative effects seen with the consumption of over-processed soy products include:
- Damage to the thyroid caused by goitrogens in soy products
- Lectins in soy cause red blood cells to clump together and may damage immune system reactions.
- The sugars in soy, oligosaccharides, cause bloating and flatulence.
- Protease inhibitors, such as trypsin inhibitors, interfere with digestive enzymes and lead to gastric distress, poor digestion, gas, bloating, diarrhea, and an overworked pancreas.
- The heating of soy during processing creates heterocyclicamines (HCAs), toxic carcinogenic byproductsalso found in cooked meat. These can lead to liver, lung, and stomach tumors, as well as lymphoma and leukemia.
- The chemical process that breaks down the soybean’s protein structure into free amino acids also releases the excitotoxins glutamate (MSG) and aspartate.
“Americans have been brainwashed into eating all kinds of processed soy ice cream, soy hot dogs, etc. We were convinced it was healthful to eat, because that was the goal of the soy maker’s marketing strategy!” Schneck added. Schneck suggests we view soy products like we do cholesterol, as there are good forms and bad. The good form of soy would include raw, unprocessed forms like edamame or fermented soy as a condiment, not a main dish. Examples of this might be tofu, miso or tempeh.
















From a registered dietician’s perspective, check out my four additional comments on soy below:
1) You have to do what is right for you. If you are scared of soy, it isn’t worth eating it. However, the peer-reviewed, scientific research has consistently shown for years that whole soyfoods are safe, even for breast cancer patients, cancer survivors and children. Whole soy foods include edamame, tofu, tempeh, soynuts, soymilk, etc.
2) Remember moderation: Don’t put all your eggs in one basket. Some consumers think that, if one serving is good for you, then more will be better. The problem is that when you eat a lot of any one food, you can displace your intake of other healthy foods, such as fruits, vegetables, nuts, seeds, fish, etc. So, for the average person, this means capping soy intake to about 2-3 servings daily.
3) Soyfoods are tasty, versatile and mainstream. Consumers need a refresher on how to incorporate soyfoods into their meals and snacks. A creamy cup of cold chocolate soymilk, or blended with a frozen banana to make a refreshing smoothie, are two satisfying snack options. And putting plant proteins center-of-the-plate couldn’t be easier! Simply grill firm marinated tofu or tempeh and layer with coleslaw for a quick ‘n’ easy sandwich. Miso soup made in minutes is a great filler-upper for lunch or dinner; just add miso paste to hot water and toss in some leftovers or frozen veggies.
4) Question the source of the controversial information. Ask yourself, is the article based on a personal opinion, or is it based on more solid epidemiological or peer-reviewed research? Anyone can write a book or get a quote in a newspaper or on the Internet, so make sure the source of information is credible. References from a registered dietitian, medical professional or the like is your best bet!
-Alison Eastwood, RD / CLE
How does Soy (low sodium, gluten free) SAUCE fit in? Is that considered a relatively safe “whole soy food”?