Is Soy Protein Powder bad for you?
Soy protein powder like any other has its own health characteristics and in some circumstances may result in unintended side effects. However, for the most part soy protein provides an excellent source of protein in a safe form that is used in many of the products we consume.
Things to consider…
- Soy Protein Powder is high in phytic acid
Phytic acid is a naturally occurring substance which binds to certain minerals and prevents these from being absorbed by the body. This may be useful for some heavy metals, but it also binds to calcium, niacin, iron, magnesium and zinc which the body uses. A very soy rich diet throughout the day may prevent your body from absorbing these much needed minerals.
- Soy protein powder contains an anti-nutrient
Soy includes an anti-nutrient which inhibits the digesting enzyme called trypsin. This slows protein digestion and makes soy less bioavailable to the body.
- Soy protein powder contains isoflavones
Isoflabones like phytoestrogen in soy mimic the hormone estrogen in your body. This is an important hormone in women and some have suggested that including very large amounts of soy in your diet could upset testosterone levels in men. However there is no research currently to confirm this. Experts have however recommended limiting soy intake during pregnancy because of the hormones importance for a baby’s development.
As with any supplement, the overuse of the product presents the greatest danger. You should ensure you use a product as directed on the packaging.