You will get into this material in the “bulk, cut, recomp” lecture. A main driver behind this issue is systemic inflammation, localized within liver, and leading to some insulin resistance.
So we have a few things to manage systemic stress and inflammation:
Sleep (poor sleep increase insulin resistance)
Stress management (cortisol increases visceral fat)
Don’t overfeed excessively when massing, also limit overfeeding on added sugars and saturated fats.
Limit cheat meals
3-4 servings fruit and veg per day
3g omega3 per day
Limit all Oral AAS
Have times of decreased AAS usage to normal physiological levels
Implement Metformin year round (personally I uses 500mg daily with last meal)
Keep body weight and body fat lower, this is a big one.