What about eating amaranth and basking in the sun?

We should have heard that light-sensitive food is what the color of food looks like. After eating it, the skin of people who bask in the sun will be close to the color of that food. For example, if carrots are eaten too much, if the skin may turn orange in direct sunlight, what will happen if they eat amaranth to bask in the sun? Is eating amaranth allergic?

1. What happens when eating amaranth in the sun

Because amaranth is a photosensitive vegetable, some people's bare skin is exposed to the hot summer sun for a long time, and there are allergic reactions such as purple, itching, burning and diffuse swelling. This phenomenon is called "plant solar dermatitis" in medicine.

2. What is plant photosensitive dermatitis

Plant-solar dermatitis is caused by eating some plants. Chenopodium dermatitis, a common disease in the past, is an acute phototoxic inflammatory reaction caused by patients eating or contacting Chenopodium (amaranth) or other photosensitive plants too much and being exposed to the sun. The occurrence of this disease is often related to physique, related plants and long-term sun exposure.

3. Symptoms

Phytosolar dermatitis usually occurs 4-6 hours after intense sunlight irradiation, and erythema with obvious boundary appears on the irradiated skin. In severe cases, edema may appear, reaching the peak in 12-24 hours, accompanied by local burning or stabbing pain, and some may have local itching. In more severe cases, it may cause systemic symptoms, such as fever, headache, nausea and vomiting.

4. Pathogenesis

Some people eat light-sensitive vegetables, and the light-sensitive substances reach the skin through the blood. If they are exposed to direct sunlight for a long time, the body absorbs a lot of solar light energy, which can stimulate the light-sensitive substances in vegetables to react chemically to produce haptens, and then combine with protein to make the body antigenicity. Once they encounter similar experiences again, they will cause immune damage and induce a special allergic dermatitis-plant solar dermatitis.

5. What vegetables can you eat?

Besides amaranth contains light-sensitive substances, which can cause photodermatitis after contact with skin or exposure to sunlight after eating, common snails, amaranth, radish leaves, celery, spinach, purslane, lettuce, fungus, mango and pineapple in daily life may also cause plant dermatitis after eating. Although the sun is not strong in spring, the intensity of ultraviolet rays is not low, so we should try to avoid the sun after eating this kind of food.

6. How to avoid

1. People with specific allergies should not eat some wild or planted vegetables with colored stems and leaves (especially purple), or avoid the sun for about 3 days after eating a small amount, which can reduce the incidence of this disease.

2. Reduce going out after eating wild vegetables, especially reduce the chance of being directly exposed to strong light. Anyone who has a history of allergies, it is best not to pick wild vegetables with strong photosensitivity such as gray vegetables and shepherd's purse.

3. Stop eating pathogenic plant vegetables immediately and avoid sun exposure. B vitamins and vitamin c are taken orally.

7. Edible contraindications of amaranth

1. Amaranth is cold and cold, and it is not suitable for people with yin-yang deficiency, loose stool due to spleen deficiency or chronic diarrhea.

2. The content of oxalic acid in amaranth is also relatively high. To control the consumption, it is suggested that it can be eaten cold after blanching, which can reduce the total intake of oxalic acid.