Huberman Lab

How to Lose Fat & Gain Muscle With Nutrition | Alan Aragon

Huberman Lab with Andrew Huberman 2025-07-07

Summary

Comprehensive guide to losing fat and gaining muscle through nutrition strategies. Andrew Huberman covers the science of body composition, meal timing, macronutrients, and practical protocols for optimizing both fat loss and muscle gain.

Key Points

  • Caloric deficit fundamentals for fat loss
  • Protein requirements for muscle preservation and growth
  • Meal timing and its impact on body composition
  • The role of insulin and blood glucose in fat storage
  • Combining resistance training with nutrition for recomposition
  • Supplements that may support body composition goals

Key Moments

Post-workout protein: 0.4-0.6g per kg per meal, and 100g in one sitting still beats 25g

The old 20g protein cap is debunked. A 2016 study showed 40g beat 20g after full-body training. A newer study showed 100g beat 25g. Aim for 0.4-0.6g per kg bodyweight per meal for maximal muscle protein synthesis.

"We scoured the literature and boiled it down to somewhere between 0.4 to roughly 0.6 grams per kilogram per meal. The 100-gram dose had significantly greater muscle protein synthesis than the 25-gram dose."

Vegans matched omnivores for muscle gains at 1.6g/kg protein — even with less leucine

A first-of-its-kind study compared totally vegan vs omnivore diets with matched protein at 1.6g/kg. No significant differences in muscle size or strength gains over 12 weeks, despite vegans having less essential amino acids.

"The vegan diet overall had significantly less essential amino acid content, but apparently the resistance training stimulus in conjunction with sufficient total protein equalized the muscle building between groups."

Body recomposition is real: at least 12 studies show simultaneous muscle gain and fat loss

At least 12 studies demonstrate gaining muscle while losing fat simultaneously. Most show it happens in a slight caloric surplus (~10% above maintenance) with very high protein intake and hard resistance training.

"At least a dozen studies have shown this recomposition phenomenon. Seven out of ten showed more lean mass gained than fat lost — implying fat was lost in a caloric surplus."

Alan Aragon's daily stack: creatine, vitamin D, fish oil, magnesium, collagen + vitamin C

Aragon takes 5g creatine, vitamin D, fish oil, vitamin C, magnesium, multivitamin, and 15g collagen with vitamin C for skin. He trains 4-5 days per week with short rests, making resistance training his cardio.

"Five grams of creatine, vitamin D, fish oil, vitamin C, magnesium. I try to make my resistance training cardio. I love short rests, high reps. Progressive overload even within a short rest paradigm."

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