Vitamin E

Sunflower seeds contribute to your daily intake of vitamin E, a family of fat-soluble nutrients. Vitamin E helps protect your cells against free radicals, chemicals that oxidize and damage your proteins, cell membranes and DNA. This vitamin also promotes healthy circulation by helping you make red blood cells. An ounce of hulled sunflower seeds contains 10 milligrams of vitamin E, two-thirds of your recommended daily intake of the nutrient, according to the Office of Dietary Supplements.

Vitamin B-1

Sunflower seeds also offer health benefits due to their vitamin B-1, or thiamine, content. Thiamine activates enzymes within your cells, helping to drive chemical reactions your cells need to function. Getting enough thiamine helps you derive energy from food and produce nucleic acids, the building blocks that make up your DNA. Men need 1.2 milligrams of thiamine each day, according to the Linus Pauling Institute, and women need 1.1 milligrams. Each ounce of hulled sunflower seeds provides 0.4 milligram of this nutrient.

Copper

Benefit your skin and hair by eating sunflower seeds, a source of copper. Eating an ounce of hulled sunflower seeds provides you with 512 micrograms of copper, more than half of the 900 micrograms you need daily, according to the Linus Pauling Institute. Your body uses copper to make melanin, a pigment protein that helps give your skin and hair their color. Melanin molecules absorb ultraviolet radiation from the sun, protecting you from tissue damage as a result of sun exposure. Copper also supports your metabolism to help your cells produce energy.