Beets
Dietary nitrates, which your body may convert to nitric oxide, are rich in beets. One research of 38 people found that taking a beetroot juice supplement for 45 minutes boosted nitric oxide levels by 21%. Another research found that ingesting 3.4 ounces (100 ml) of beetroot juice boosted nitric oxide levels in both men and women considerably.
Beets have been related to a variety of health benefits, including increased cognitive function, improved athletic performance, and reduced blood pressure levels, thanks to their high dietary nitrate content. Beets are delicious in smoothies, salads, and even brownies. Athletes and bodybuilders utilize beet juice as a pre-workout supplement. With 270 milligrams per 100 grams of nitrate level, it ranks second only to arugula. When consuming beet juice or a beet supplement, keep in mind that some products contain a lot of sugar.