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soy lecithin

much controversy on the content of soy lecithin in whey protein powder – if it’s listed as an ingredient in a product from a reputable manufacturer such as MuscleTech, is it really going to affect a 52 year old male if the recommended servings per day are not exceeded? I’ve read that a safe amount of soy isoflavones is between 50-150 mg daily- but trying to get the isoflavones content of a product from a manufacturer is next to impossible – any light you could shed on the subject would be greatly appreciated – thanks – Tim


Hi, regarding soy lecithin in whey protein powder and soy isoflavones, these are two different things. Soy lecithin is generally used as a food additive, although it is rich in choline, which is vital for cell membrane development and nerve functioning. Soy isoflavones are phytoestrogen which mimic the action of estrogen in the body. Soy lecithin and soy isoflavones are substances that have been isolated and do not usually have any of the other component in them. In terms of the specific product you are using, the whey protein powder may well contain soy lecithin, but the isoflavones content will be non-existent. The only time you could expect to find both lecithin and isoflavones is if you were consuming whole soy products such as tofu or soy protein powder.

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