1, purple sweet potato, purple sweet potato not only has the nutritional components of ordinary sweet potato, but also contains rich selenium, iron and anthocyanins. Among them, selenium and iron are essential elements for anti-aging and blood-enriching. Eating purple potato often helps to replenish blood, improve human immunity and keep skin healthy;

2, onions, onions are rich in selenium, and have a certain anti-aging effect like purple potatoes. At the same time, purple onion is especially beneficial to patients with cardiovascular diseases such as hyperlipidemia and hypertension;

3, purple rice, known as "the best in rice." It is rich in vitamin B 1, vitamin B2, folic acid, protein and other nutrients, as well as iron, zinc, calcium and other mineral elements needed by the human body. Traditional Chinese medicine believes that purple rice has the effects of enriching blood and benefiting qi, nourishing yin and tonifying kidney, warming spleen and stomach, and has certain curative effect on symptoms such as stomach cold, stomachache and frequent micturition at night;

4. Amaranth Amaranth has outstanding dietary fiber and carotenoid content, and high iron content, so it is the first choice for people with three highs and women. Amaranth tastes a little astringent, so it's best to blanch it before seasoning it, or make vegetable soup;

5. Mulberry has the function of delaying aging. Mulberry also has the functions of improving blood supply to skin, nourishing and whitening skin, improving eyesight and blackening hair, and is a very good female beauty food;

6. Blackcurrant, also known as black currant, is rich in vitamins, sugars and organic acids, especially vitamin C, which is mainly used to make jam, fruit wine and drinks.

7. Blueberries are called "super fruits" and are the fruits and vegetables with the most anthocyanins. In addition to anti-aging, they can also prevent and improve vision, colon cancer and eliminate eye fatigue.

References:

Baidu Encyclopedia-Purple Food

Baidu encyclopedia-amaranth

People's Daily Online-Purple Food Anti-cancer and Anti-aging Seven kinds of purple foods make you healthy and young.