"i was stuck at the same weight for over 2 weeks. i was working out over 60 min a day. i decided to try fastin and within days started losing weight again. i have been taking it for 5 weeks and have lost 10 lbs. that&#039;s good enough to get my approval. it really helps me not be hungry throughout the day. and gives a noticeable increase in energy. i have noticed some jitteriness about 1 hr after taking it. but it does not last long and to me is worth the weight loss."