This thick and tangy yogurt-like beverage contains a wide variety of probiotic bacteria and 11g of protein per cup. Kefir is made by adding kefir grains to milk, which causes fermentation to occur. Have a cup of kefir as an on-the-go breakfast, or add to your cereal instead of milk. Look for kefir in the dairy or natural-foods section of your grocery store; it's available in plain and fruit flavors.
- Editor Obsession: Shoes We LoveOur editors' picks for the best shoes for the coming season.
- Six Spirits That Will Save Your Holiday SeasonThey're key to any holiday gathering.
- 8 Holiday Cocktails Made with MoonshineMust-try recipes from America's most visited distillery.
- Form CheckThe easy reminders for five basic lifts.