I’ve only been taking these for 4 days so far but definitely noticed the increase in energy. I was previously on a keto diet and got off track but so far this is helping me get back on track. I feel more focused, increased energy, no jitters, curbs the appetite but not to the point where I couldn’t eat if I really wanted to. I started off taking 2 in the morning and 2 at noon but then started taking all 4 in the morning on day 3. The energy level of all 4 is better for me. I haven’t had my morning coffee in 3 days because I don’t need it. Not sure about weightloss because I haven’t weighed myself after taking them but feel it’s really too soon for that anyway since I’m more focused on getting back to my healthy diet and eating habbit.