I Have A 49 Year Old Son, Single, Never Been

I have a 49 year old son, single, never been married. He is a plumber. Lately he has mentioned to me that he has a bad body oder. I did not ask him further questions as he is very hyper and takes thyroid medicine. He has stopped eating red meat and does not drink alcohol or smoke. I do not know if he uses spices such as curry in his food preperation. I dont want him to blow his top but, what avenue can I proceed on to get/give him help.