While ideal doses can vary depending upon body weight and lifestyle, 30 g of whey protein per day has been shown to yield a range of health benefits. (naturalhealth365.com)
Clinical research is needed to determine «ideal dose for therapeutic effect.» (healthcentral.com)
While it isn't considered fatal, you may experience unpleasant side effects, such as daytime drowsiness, mood changes and possibly hallucinations or paranoia.29 I urge you to visit a doctor first to get their recommendation on the ideal dose specific to your needs. (articles.mercola.com)