1. Brandy Blackburn, 25, counted calories to drop from 340 pounds to 163 pounds — a loss of 177 pounds.

2. Diana Cantu, 51, went from a starting weight of 333 pounds to 142 pounds on Jenny Craig — a total loss of 191 pounds.

3. Diana Cantu's 16-year-old son Michael used portion-controlled meals and exercise to go from 270 pounds to 162 — a loss of 108 pounds.

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