I use to take hydroxycut hardcore back in my younger days for energy in order to lose the weight.....now years later i decided to get back on it....now im taking hydroxycut hardcore next gen. It does give some nausea in the beginning but it goes away.....if it is taken properly! Obviously empty stomach and taking the pills will make you feel sick. This pill gives me crazy energy which i like because it gives me energy to burn and my calories burned it higher. It DOES NOT MAKE YOU LOSE WEIGHT! it's not a magic pill you take and lose 10 pounds....it simply curves appetite and gives u energy to spend.