Why this much:
Why it's critical: Fat is essential â your body literally cannot function without it. It produces and regulates key hormones including testosterone, estrogen, and cortisol, all of which directly impact muscle growth, fat loss, mood, and recovery. Going too low on fat (under 20% of calories) tanks hormone production and stalls progress.
How it helps you: Dietary fat helps your body absorb fat-soluble vitamins (A, D, E, K), supports brain and joint health, keeps your skin and hair healthy, and provides slow-burning energy. We set fat at 25% of total calories â the sweet spot that protects your hormones without stealing too many calories from carbs (which fuel your training harder).
Best sources: Avocados, nuts and seeds, olive oil, fatty fish (salmon, sardines), eggs, nut butters, full-fat dairy. Aim for mostly unsaturated fats and limit highly processed sources.