What foods should pregnant women not eat when taking calcium supplements?

　　As the belly of pregnant women grows and the baby grows, the "calcium" in the body of pregnant women is also quietly lost... The vast majority of pregnant women choose to supplement calcium to ensure the health of their babies. healthy . In order to ensure calcium absorption, calcium supplements should not be used with the following foods.

　　Oxalic acid - spinach, amaranth, bamboo shoots and other vegetables: After pregnancy, many pregnant women begin to pay attention to eating more fruits and vegetables. However, some astringent vegetables contain oxalic acid, which can combine with calcium to form insoluble precipitates in the intestines, affecting calcium absorption. Therefore, it is recommended that pregnant women eat 500-750 grams of vegetables and fruits every day. You can also blanch these vegetables in water to remove the astringency before cooking.

　　Phytic acid - rice and white flour: The phytic acid contained in rice and white flour combines with calcium in the digestive tract to produce calcium and magnesium phytate salts that cannot be absorbed by the human body, greatly reducing the body's absorption of calcium. Therefore, pregnant women can first soak the rice in an appropriate amount of warm water for a while, so that the phytase in the rice can decompose most of the phytic acid. ； Phytase secreted from fermented pasta can also hydrolyze the phytic acid in the flour to avoid affecting the body's absorption of calcium.

　　Phosphoric acid - carbonated drinks, cola, coffee , hamburgers, etc.: Under normal circumstances, the calcium:phosphorus ratio in the human body is 2:1. However, if pregnant women consume too much phosphorus-containing foods such as carbonated drinks, cola, coffee, hamburgers, pizza, animal liver, French fries, etc., the calcium:phosphorus ratio is as high as 1:10-20. In this way, too much phosphorus will "drive" calcium out of the body.

　　Sodium – Salt: Excessive salt intake by pregnant women will affect the body’s absorption of calcium and may also lead to greater loss of calcium from human bones. This is because salt contains sodium, and the kidneys must excrete excess sodium from the body every day. For every 1,000 mg of sodium excreted, 26 mg of calcium will be consumed at the same time. Therefore, pregnant women should not eat salty foods.

　　Fatty acids - fatty foods: Fatty acids (especially saturated fatty acids) decomposed from fat can form insoluble substances with calcium in the gastrointestinal tract, reducing the absorption rate of calcium. Therefore, pregnant women should arrange their meals reasonably and avoid eating too greasy food.