MBRANDS
- McDavid
- Metamucil
- MHP
- MonsterMart
- Monsterzym
- MRM
- MTS Nutrition
- Muscle Feast
- Muscle Milk
- Muscle Pharm
- MuscleTech
- MUTANT
NBRANDS
- Natrol
- Nature Made
- Nature Valley
- Nature's Bounty
- Nature's Nutrition
- Nature's Way
- New Wave Enviro
- Now
- NPC Active Wear
- Nutrakey