First of all, I never recommend overeating as a planned practice. You can build muscle without gaining fat by increasing calories to compensate (not overcompensate) for increased training volume or intensity.
So there’s really no utility of overeating other than pleasure. 
Whether your goal is to build muscle, lose fat, or just be healthy, I recommend everyone take forskolin for its positive effects on muscle, metabolism, anabolic hormones, and fat cells (among others).
Here are the Biotest supplements that contain full-dose forskolin:
- Carbolin 19® Anabolic/Lipolytic Agent
- Alpha Male® Max Strength Testosterone Booster
- Hot-Rox® Extreme Fat-Loss Formula
Read about each supplement and choose the one that best fits your specific goals.
FORSKOLIN STUDY
| Study Parameters | Details |
|---|---|
| Subjects | 30 men |
| Controls | Randomized, double-blind placebo |
| Duration | 12 weeks |
| Forskolin dose | 50 mg/day |
| Study Results | Forskolin | Placebo | Difference |
|---|---|---|---|
| Lean mass gains | 8.2 lb | 3.8 lb | 4.4 lb |
| Fat loss | -10 lb | -1.1 lb | -8.9 lb |