I agree with you on the diet
pills, they tend to have bad side effects for those of us with
Thyroid issues. The B12 you've talked about is mostly for energy, which in turn helps you exercise more (even if it's just being up more and moving around doing laundry, cleaning, etc. that's a start). The biggest thing about the B12 is the Lipotropics (3 amino acids) that are being added to help break down the stubborn fat we gain and to support the liver while moving it out.