Soy has gained attention in recent years as a good alternative source of protein for those who cannot or choose not to eat meat and dairy. Derived from the soybean which is indigenous to southeast Asia, soy is also rich in fiber, isoflavones, and lecithin. Eating foods or supplements which contain soy protein benefits one's health in numerous ways.

Soy is something that can be enjoyed in a large selection of different foods and beverages. It is commonly used as a substitute for meat or milk and can be used to produce milk, cheese, yogurt, butter, ice cream, hot dogs, tofu, and powdered supplements. Soybeans are dried and ground into flour which is then added to soups, pastries, and fillers for sausages. Infants who cannot tolerate lactose, may be given a soy-based formula.

Some studies have indicated that a high amount of dietary soy can offer some protection against certain types of cancer, in particular prostate cancer in men and breast cancer in women. A phytochemical called "genistein" is thought to prevent tumors from forming the vascular networks needed for growth. More research is needed to further support this theory, but preliminary findings have shown a connection between the two.

The health of the heart and blood vessels is improved by a soy-rich diet as well. Risk of heart attack is reduced by the active isoflavones and phytoestrogens which help promote dilation of the coronary arteries and unobstructed blood flow. Patients with hypertension can also experience healthier blood pressure levels.

The harmful effects of LDL, also known as "bad" cholesterol can be effectively combated by eating supplements and foods made from soy. Cholesterol molecules are disintegrated by this protein which attacks their plasma. Good cholesterol, or HDL is not affected. Men have been shown to respond particularly well in this sense, and by including four servings of soy per day, they can reduce their LDL by up to 10 percent, further research is aimed at determining if this is also true with female subjects.

Diabetics can use it to assist them in maintaining acceptable levels of glucose in the blood, and balance fats and insulin too. People who are dieting will find a tasty soy-shake to be the perfect complement to their weight loss program, as it makes one feel full longer, and helps prevent the tendency to overeat.

Women going through menopause have also shown some positive health effects when increasing the amount of these nutrients they consume. Improvement has been noted in the reduced incidence of hot flashes in some women. It is also understood to promote the balance of calcium and bone density, which is needed to prevent osteoporosis in women who are post-menopausal.

Soy-shakes are highly recommended for the daily program of athletes, bodybuilders, and anyone else who wants to gain lean muscle tissue and boost their physical performance. It helps to reduce inflammation in the muscles following a workout, which leads to faster recovery, less pain after exercising, and ultimately maximum muscle development.