Anant Ambani's weight gain

Before you come after me saying he has severe asthma and uses ananabolic steroids for treatment, I know that already. What i wanna know is What kind of steroids he is using as many of you know that many bodybuilders who compete in different events also use steroids but have really amazing body structure.

And just to be in the clear my intention is not body shaming anant ambani. I'm just curios about the different effects of steroids