1. Homemade protein smoothies Drinking homemade protein smoothies can be a highly nutritious and quick way to gain weight. Making your own smoothies is the best way since commercial versions are often full of sugar and lack...

Apetamin may promote weight gain because it contains cyproheptadine hydrochloride, a powerful antihistamine whose side effects include increased appetite. Though it’s unclear how this substance increases appetite, several theories exist. First, cyproheptadine hydrochloride appears to...