Ranked by protein per calorie.
- Shamrock Farms® Lowfat White Milk — 90 cal, 7g protein
- 1% Lowfat Milk — 110 cal, 8g protein
- 1% Lowfat Chocolate Milk — 140 cal, 8g protein
- Shamrock Farms® Lowfat Chocolate Milk — 150 cal, 7g protein
- Honest Kids® Apple Juice Drink — 45 cal, 1g protein
- Nestle® Pure Life® Bottled Water — 0 cal, 0g protein