The Most Nutritious Whole Foods

Vitamin B1

What is it: Also known as thiamin. Helps cells' enzyme systems convert oxygen into usable energy.

Why you need it: Maintains your energy, coordinates nerve and muscle activity, and keeps your heart healthy.

BEST SOURCES
Raw sunflower seeds (1/4 cup, 205 calories)
54 percent daily value
Cooked yellowfin tuna (4 ounces, 157 calories)
38 percent daily value
Cooked black beans (1 cup, 227 calories)
28 percent daily value
Cooked corn (1 cup, 177 calories)
24 percent daily value
Sesame seeds (1/4 cup, 206 calories)
18 percent daily value
Oatmeal (1 cup, 145 calories)
17 percent daily value
Cooked asparagus (1 cup, 43 calories)
14 percent daily value
Brussels sprouts (1 cup, 60 calories)
11 percent daily value
Cooked spinach (1 cup, 41 calories)
11 percent daily value
Pineapple (1 cup, 76 calories)
9 percent daily value