The Perfect Plant Protein: Soy

Herbalife’s Dr David Heber explains how adding soy to your diet can help you maintain a balanced diet and a healthier lifestyle.
Soy products | Source: Adobe Stock

By Dr David Heber

Dr David Heber, M.D., PhD, FACP, FASN, is Chairman of the Herbalife Nutrition Institute

10 Sep 2020

I think that we can all agree that one of the best ways to live a healthy life is by maintaining a balanced diet and exercising regularly. As a medical doctor who has focused on understanding nutrition’s impact on our bodies, I am a proponent of a balanced diet that includes healthy plant-based foods – especially soy protein.

Obesity is linked to many potentially lethal health conditions including heart disease, high blood pressure and diabetes. As the founding director of UCLA’s Center for Human Nutrition, I have spent decades researching the impact of plant-based proteins – such as soy – on patients vs a meat-based protein diet. Substituting soy protein and other plant proteins for high-fat animal meats, as in a plant-based diet, can result in better weight control and lower cholesterol and blood pressure levels, although changing one’s diet is not a substitute for seeking medical advice or treatment for these conditions. Reducing calories, saturated fat, and cholesterol from a meat-based diet and changing to a plant-based one may help you achieve and maintain a healthier body.

How to choose the source of protein that’s best for you?

With consumers seeking more plant-based proteins, including rice, beans, quinoa, pea, soy, and others, it can be tough for consumers to know which plant-based proteins are best for them. The truth is, not all plant-based proteins are created equal. Unlike the other plant-based proteins, soy protein is the only one considered a complete protein. Soy contains all 21 amino acids, including the nine essential amino acids that the body cannot make. These essential amino acids can come from the foods we eat. Soybeans are also a good source of fibre, minerals, and complex carbs. Soy contains phytonutrients called soy isoflavones, which act as antioxidants. Soy may also benefit the heart. Some studies have shown that 25 grams of soy protein a day, as part of a diet low in saturated fat and cholesterol, may reduce the risk of heart disease, although the total scientific evidence is not conclusive.

“In addition to frequent handwashing, face masks, and social distancing, a balanced diet and lifestyle that includes healthy proteins like soy and regular exercise can help our bodies stay fit and strong”

With so many health benefits, why does soy sometimes receive a bad rap?

Several years ago, there were reports that soy had a link to breast cancer. However, scientific research has debunked this premise, and there is no evidence linking soy consumption to breast cancer. Based on several studies, the World Cancer Research Fund Network says there is mounting evidence that nutrients in soy foods may, in fact, lower the risk of cancer. Research has also negated the myth that soy consumption could cause enlarged breasts in men. In fact, studies showed that soy had no significant effects on men, including any impact on total testosterone levels, another myth about soy.

Now that you understand the joy of soy, there are many ways to add soy to your diet. Foods rich in soy include edamame (whole soybeans), tofu, tempeh and a convenient, on-the-go soy protein meal replacement shake. Soy is indeed the perfect protein and an essential addition to a healthy diet. As the medical community continues to study how people can best protect themselves against any viral infection now and in the future, in addition to frequent handwashing, face masks, and social distancing, a balanced diet and lifestyle that includes healthy proteins like soy and regular exercise can help our bodies stay fit and strong.

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