Should i be concerned if my appetite is suppressed after drinking coffee?

No: Caffeine has only a minor, brief appetite-suppressing effect, according to Mayo Clinic nutritionist Katherine Zeratsky. The chemical also increases the level of fatty acids circulating in your body. This effect enhances fat oxidation, although the effect is less pronounced in people who consume caffeine regularly. Caffeine reduces fatigue and gives you more energy, which helps you feel good