Casein Protein

Slow-digesting protein for overnight and between meals.

#1Optimum Nutrition Gold Standard 100% Casein
$35-$55 · 4.6★

Slow-digesting micellar casein — 24g protein, the classic before-bed shake.

  • Slow micellar casein for overnight feeding
  • 24g protein per scoop
  • Thick, pudding-like texture
#2Dymatize Elite Casein
$35-$50 · 4.6★

Micellar casein with 25g protein and a slow 7-hour amino release.

  • 25g slow-release protein
  • Mixes thinner than ON casein
  • Good before-bed option
#3NOW Foods Micellar Casein
$30-$45 · 4.5★

No-frills unflavored micellar casein for clean overnight protein.

  • Unflavored, minimal additives
  • Pure micellar casein
  • GMP-certified

Frequently Asked Questions

Should I take casein before bed?

It is the classic use: ~30–40g of micellar casein provides a slow amino drip overnight. The effect is modest but real for those who train hard and want to maximize recovery.

Casein or whey?

Whey for fast post-workout absorption; casein for slow, sustained feeding (before bed or long gaps). Many lifters keep both, but either alone is fine if you hit your daily protein.