Using diet pills. Do you see results?

So I'm thinking about using diet pills since I'm no longer in high school sports since I graduated. I'm planning on taking the pills and doing a swim exercises through out the week. Should this help me lose some weight? I'm not fat but I'm starting to get a little belly and my thighs could use some work. Have you seen results with diet pills while doing exercise?
Using diet pills. Do you see results?
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