Just say "that's ok but everyone should do what is best for and works for them." Or if you are particularly annoyed "Are you insured to give advice? If not I'd be cautious and you need to mention disclaimers"
hey there is hope for us. You are an inspiration to someone who is new my fitness app user. I've built some muscle and now I can work on the waist line. 29" waist must be awesome. I'd settle for 32/34! How did the comp go?