The sunflower seeds you eat are encased in inedible black-and-white striped shells, also called hulls. Those used for extracting sunflower oil have solid black shells.
Sunflower seeds have a mild, nutty flavor and a firm but tender texture. They’re often roasted to enhance the flavor, though you can also buy them raw.
Furthermore, studies link sunflower seeds to multiple other health benefits.
In a study in more than 6,000 adults, those who reported eating sunflower seeds and other seeds at least five times a week had 32% lower levels of C-reactive protein compared to people who ate no seeds.
A compound in sunflower seeds blocks an enzyme that causes blood vessels to constrict. As a result, it may help your blood vessels relax, lowering your blood pressure. The magnesium in sunflower seeds helps reduce blood pressure levels as well.
Additionally, sunflower seeds are rich in unsaturated fatty acids, especially linoleic acid. Your body uses linoleic acid to make a hormone-like compound that relaxes blood vessels, promoting lower blood pressure. This fatty acid also helps lower cholesterol.
In a 3-week study, women with type 2 diabetes who ate 1 ounce (30 grams) of sunflower seeds daily as part of a balanced diet experienced a 5% drop in systolic blood pressure (the top number of a reading).
Furthermore, in a review of 13 studies, people with the highest linoleic acid intake had a 15% lower risk of heart disease events, such as heart attack, and a 21% lower risk of dying of heart disease, compared to those with the lowest intake.
Studies suggest that people who eat 1 ounce (30 grams) of sunflower seeds daily as part of a healthy diet may reduce fasting blood sugar by about 10% within six months, compared to a healthy diet alone.
Studies also suggest that adding sunflower seeds to foods like bread may help decrease carbs’ effect on your blood sugar. The seeds’ protein and fat slow the rate at which your stomach empties, allowing a more gradual release of sugar from carbs.
Written by Marsha McCulloch, MS, RD on November 22, 2018