Best Weight Gain Supplements for Skinny Girls

Best Weight Gain Supplements for Skinny Girls (2025)

Struggling to gain weight and build muscle as a skinny woman? You’re not alone! Many women find it difficult to add size due to fast metabolisms or low appetite. Thankfully, the right supplements can make a huge difference.

In this quick guide, we’ll cover the best weight gain supplements for skinny girls — from high-quality protein powders to powerful mass gainers.

Top Supplements for Skinny Girls

Whey Protein Powders

Perfect for muscle repair and growth:

  • Per4m Whey
  • Optimum Nutrition Whey
  • CNP Whey
  • USN Blue Lab

Creatine for Strength

Boost muscle strength and performance with:

  • Optimum Nutrition Platinum Creatine
  • Per4m Creatine
  • USN Creatine

BCAAs and Amino Acids

Enhance recovery and prevent muscle breakdown:

  • Mutant Geaar
  • USN Nine Amino
  • CNP Loaded EAA
  • Xtend BCAAs

Best Mass Gainers

High-calorie shakes for serious weight gain:

  • Mutant Mass Extreme
  • Applied Nutrition Critical Mass
  • USN Hyperbolic Mass

Protein Bars for On-the-Go

Convenient snacks packed with nutrients:

  • Huel Bars
  • Grenade Bars
  • Snickers Low Sugar Bars

Essential Multivitamins

Support your body’s nutrient needs:

  • Opti-Woman
  • Nutriburst Women’s Multivitamin
  • Applied Nutrition Multivits

How Weight Gain Supplements Help

  • Calorie Boost: Easy way to hit a surplus even with a busy lifestyle.
  • Muscle Support: Protein and amino acids help build and repair muscle.
  • Better Recovery: Faster recovery = faster gains!

Best Times to Take Supplements

  • Pre-Workout: For energy and endurance.
  • Post-Workout: To boost recovery and muscle growth.
  • Between Meals: Maintain steady nutrient intake.
  • Morning: Kickstart your metabolism with a protein or mass gainer shake.

Tips for Skinny Girls Gaining Muscle

  • Stay consistent with supplements and meals.
  • Strength train at least 3–4 times per week.
  • Track your progress weekly and adjust your intake if needed.
  • Focus on clean, high-quality products made for women.

Whether you’re trying to add a few pounds of lean muscle or overcome a weight plateau, the right combination of supplements, nutrition, and training can transform your physique faster than you think.