"over 5 years i gained 56 lbs. i have spent half of the last 5 years on a diet, tracked calories on mfp, and still couldn&#039;t budge my weight unless i ate less than 800-900 calories- i will gain weight at 1200.  i&#039;m 6&#039;1&quot; and weighed 205.9 after the holidays (yikes). until may i faithfully ate 800 calories a day. i got down to 197- seriously! what a joke!? in july, i tested bordeline hypothyroid and started iodine and phentermine. i took 37.5 mg for 2 weeks and lost 15 lbs. went off the med and settled in at 185 lbs (+3 lbs) for the next month. just started the 37.5 mg again 3 days ago, and i&#039;m down to 181! side effects- a little dry mouth. i dont feel extra energy. remember to supplement your electrolytes to prevent cramping!!!!"