You could ask Nutrition Support on the Medifast site (post or call). Often they recommend a 4&2 plan if you are working out more. That's 4 Medifast meals and 2 full Lean & Green meals. Maybe he could try that.
Lost 103 pounds, regained 47, taking it off again.
Restarted 11/18/12 at 222 pounds
*Never Give Up!*