Which one is really better?

Soy protein comes from soybeans. Soybeans, endemic to Asia, came to America around 1879 and were used primarily in animal products. Soy has been proven to lower triglyceride levels, LDL cholesterol, and improve kidney function.

Whey protein has been considered the higher quality protein source for a long time, but that may not hold true anymore. New studies suggest both are on the same level, yet they're not equal.

Recent studies show that soy protein has a significant effect on testosterone and muscle building. Soy protein powder concentrates twenty years ago as a food supplement. Bit it was high in sodium and carbohydrates with a low amino acid composition, making it a low quality muscle builder.

Some nutritional experts believe that soy produces low energy levels, poor digestion, infertility, and hypothyrodism. On the other hand, there are those who believe soy to be harmless and even beneficial.

Soy protein has come a long way since they learned how to extract the protein from the bean then condense it. This is called soy protein isolate with ninety percent protein and no carbs or fats. Soy protein is the only plant protein with high-quality, which has all of the necessary amino acids needed for growth and evolution.

Soy-protein isolate, whey, egg white, and cassein proteins have been deemed the highest quality proteins and actually compliment each other. Soy protein is available in three different forms.

Texture soy protein comes from soy protein concentrates, which is found in foods such as imitation pork, chicken and burgers. Sou protein concentrate, basically, is what's left after extracting the fat. Soy protein isolate is the highest quality soy available. Composed of mostly de-fatted beans, soy protein isolate is the purest protein source.

Soy far exceeds whey is its glutamine content, which is particularly interesting to the bodybuilder. Soy isolates' high concentration of glutamine, amino acids and arginine are essential to the immune system, and the release of growth hormones.

Soy protein was once thought to raise estrogen and decrease testosterone, but the latest study disproves that theory. Soy is a practical workout beverage. A daily supplement of a soy and whey combination produced lean body mass with no effect on estrogen or testosterone levels.

Therefore, soy is the better protein and when used in combination with whey, it can pack a monster of a wallop.