NG during menstruation and on an empty stomach! Drinking coffee during these four hours is very harmful to your body. Be patient.

▲ Coffee schematic diagram. (Picture/Dazhi/Schematic Diagram)

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Studies have shown that coffee not only can refresh, but also has the benefits of reducing the risk of stroke, Alzheimer's disease, type 2 diabetes and other diseases, so coffee has become a daily drink for many people. However, not everyone is suitable for drinking coffee at any time, the Japanese health knowledge website "S н а University" lists 4 "should not drink" coffee time, drinking at the wrong time may harm your health!

1. Physiological period, anemia

Coffee contains chlorogenic acid and caffeine, which interfere with iron absorption and may lead to anemia. Therefore, when girls are in their physiological period or have anemia, it is best not to drink coffee and consume too much caffeine, so as not to make iron deficiency more serious.

▲ Physiological period. (Picture/Dazhi/Schematic Diagram)

2. Calcium deficiency, people who need calcium supplements

Caffeine promotes calcium excretion, so pregnant women and children with osteoporosis who need calcium supplements should avoid excessive caffeine intake.

3. during pregnancy

Pregnant women in late pregnancy for caffeine metabolism will be poor, if too much intake may cause underweight baby miscarriage, premature birth risk, pregnant if drinking coffee, tea and other caffeine-containing drinks, must pay special attention to intake.

Pregnant. (Picture/Dazhi/Schematic Diagram)

4. When the stomach is poor, when it is empty

Caffeine promotes the secretion of gastric juice, so when the stomach is poor and fasting, if caffeine is ingested, it may cause abdominal pain.

The article specifically reminds that people with anemia and calcium deficiency should avoid drinking coffee during meals and within 30 minutes after meals, so as not to affect nutrient intake.