Besides being a rich source of iron and vitamin A, soy protein powder also contains fiber and isoflavones, which are compounds that possess estrogen-like effects, according to the World's Healthiest Foods website. Soy protein powder provides a wide range of health benefits, from improving endothelial function to reducing the risk for heart disease. Consult your health care provider before taking soy protein powder supplements. Some people are allergic to soy or cannot digest it.
Cuts Breast Cancer Mortality
In a 2009 study conducted by the Vanderbilt University Medical Center and published in the "Journal of the American Medical Association." Researchers analyzed data from the Shanghai Breast Cancer Survival Study and discovered that soy protein intake up to a level of 11 grams reduced breast cancer mortality and recurrence in breast cancer patients. Scientists suggest that soy isoflavones are responsible for the beneficial effects on breast cancer.
Increases Endothelial Function
Researchers reviewed studies regarding the impact of soy isoflavones on endothelial function--blood vessel cell function--according to findings reported in the journal of "Nutrition, Metabolism and Cardiovascular Diseases." They concluded that soy isoflavones improve blood flow through the brachial artery, a measurement tool used for endothelial function. Impaired flow is a risk factor for cardiovascular disease, according to researchers.
Boosts Lung Function
Soy protein might improve lung function, according to the Science Daily website. Scientists found that patients consuming soy products had better lung function and were less likely to develop chronic obstructive pulmonary disease, which decreases lung activity, compared to those who did not use soy products. Scientists noted that soy contains flavonoids, which act as anti-inflammatory agents in the lung.
Improves Cholesterol
In a 2006 study published in the "American Journal of Cardiology," researchers analyzed 41 studies regarding the relationship between soy protein and cholesterol levels. They found that soy protein is effective for decreasing total cholesterol and LDL or bad cholesterol in the body. Scientists stated that soy protein can be used as a treatment for those suffering from high cholesterol.
References
- World's Healthiest Foods: Soybeans
- Nutra Ingredients: Soy may slash breast cancer mortality: Study
- Nutra Ingredients: Soy isoflavones could improve endothelial function: Study
- Science Daily: Superfood Soy Linked To Reduction In Smoker's Lung Damage Risk
- Science Daily: Eating Soy Protein Helps Control Cholesterol
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