Supplement categories

11 lists from the NIH label database (January 2026 release); the largest, probiotics, holds 6,116 of its 116,682 products. Product categories defined by what the labels contain: multivitamins, probiotics, fish oil, protein powders, electrolytes and more, each with what its products list and how much.

All 11 lists

• Probiotics

  6,116 products (5.2% of all), 4,545 on the market

• Electrolytes

  3,816 products (3.3% of all), 2,911 on the market

• Fish oil and omega-3

  3,423 products (2.9% of all), 2,529 on the market

• Multivitamins

  3,152 products (2.7% of all), 2,400 on the market

• Protein powders

  2,672 products (2.3% of all), 2,010 on the market

• Sleep supplements

  1,905 products (1.6% of all), 1,517 on the market

• Collagen supplements

  1,859 products (1.6% of all), 1,500 on the market

• Pre-workouts

  1,223 products (1.0% of all), 977 on the market

• Greens powders

  845 products (0.7% of all), 673 on the market

• Fiber supplements

  629 products (0.5% of all), 479 on the market

• Prenatal vitamins

  427 products (0.4% of all), 307 on the market