People with poor digestive function and vegetarian spleen deficiency eat less, and if they eat too much, they can cause diarrhea and abdominal pain. It can also lead to lobular hyperplasia of the breast. Therefore, laver should not be eaten more, and it should be used with caution by people with spleen and stomach deficiency and cold and patients with various tumors.
Porphyra is rich in iodine, and the China Nutrition Society recommends that the recommended daily intake of iodine is 120 micrograms, and the maximum tolerable intake is 600 micrograms. 100 gram of laver contains 4323 micrograms of iodine, so the recommended daily amount is 2-3 grams.
In 20001year, the international authoritative academic organization first put forward the definition of iodine excess (urinary iodine is greater than 300 μ g /L), and it was agreed that iodine excess could lead to a significant increase in the incidence of hypothyroidism, autoimmune thyropathy and papillary thyroid cancer.
Experts believe that the recommended dosage of iodine intake is1adult over 2 years old 150 μ g/day, children aged 6-12 years old 120 μ g/day, pregnant women and lactating women are 250 μ g/day, and the maximum tolerable iodine intake is 1000 μ g. Therefore, when laver is eaten daily for a long time and reaches 14-23g, it may exceed the standard and cause danger.
Extended data:
Main value
1, Porphyra is rich in nutrition and delicious taste, and is rich in protein, inorganic compounds, unsaturated fatty acids, vitamins and minerals, among which protein is as high as 25%~50%, so it has broad prospects in the fields of food and medicine.
2. Porphyra polysaccharide and phycobiliprotein have anti-aging, anticoagulant and hypolipidemic effects.
3. Porphyra has a strong ability to absorb nitrogen, phosphorus and fix carbon, and its cultivation also plays an important role in the repair and improvement of eutrophication in shallow sea.
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People's Daily Online-How to eat more safely? Porphyra should not be eaten excessively.