Not sure how to rate this. I have been taking this for about 3 weeks but it makes me crash way too hard. I can't work out in the morning because of my work schedule but I can't get enough energy to stay awake even for the ride home. I drink tons of water throughout the day regardless of using this product but it's definately not for me. Going back to Oxy Elite Pro. I thought the headaches were from being tired but after reading other reviews I am not sure now. I actually find I am not hungry during the day but I Force myself to eat but I am starving after 8PM. Usually when I wake from my Forced nap. Sorry if this has worked for you and you don't agree with me but this just isn't working for me.