I'm 15 years old and I'm starting to lift weights. So I bought this protein supplement from EAS and it has Casein, Whey Protein, and Soy Protein and it's a powder that you mix with any drink. Anyway, it says don't take if you're under 18 but 2 of the pharmacists said that it's all right to take and that there aren't any negative effects. I don't think they saw the under 18 sign or anything, so I'm wondering what to do. I was thinking of just taking half a serving every 2 days after a workout instead of the 1-2 recommended everyday. Since I'm 15 I'm thinking this might reduce the risk.

Please help me answer this.