Why are these 5 types of food called 'shameless'? Look what they do, the baby's calcium is all in vain

Calcium is the most abundant mineral in the human body, and minerals are divided into macroelements and trace elements.

It is worth mentioning that most mothers and fathers think that calcium is a trace element. In fact, this is a wrong view. Calcium has always been a macro element, and 99% of calcium is found in bones and teeth.

Calcium is an indispensable nutrient for growth and development. What are its benefits to the human body?

1. Make up bones and teeth;

2. Maintain the normal psychological state of cells;

3. Control nerve induction and muscle contraction;

4. Help blood coagulation;

5. Reduce fatigue and enhance resistance.

It can be seen that the importance of calcium is self-evident, we must often supplement calcium for children, and make a big drop!

After all, children are young and need sufficient calcium to maintain the development of bones, teeth, nervous system, etc. as they grow and develop.

However, in real life, many children may have experienced calcium deficiency, which makes Bao Mom and Dad very puzzled. Why?

According to the recommendation of the Chinese Nutrition Association:

For children from 0 to 6 months, the daily intake of calcium is 300 mg;

For children from 7 to 12 months, the daily intake of calcium is 400 mg;

For children aged 1-3, the daily intake of calcium is 600 mg;

For children aged 4-8, the daily intake of calcium is 800 mg.

Let's take children from 0 to 6 months as an example. Their daily calcium intake is 300mg, which means that children can consume enough calcium for a day by drinking 300ml of milk every day. Most children can easily complete this amount of milk.

That being the case, why do most children still suffer from calcium deficiency?

The reason is very simple, that is, the calcium supplemented by parents to their children has been "stolen" by some "shameless" foods!

1. Foods high in oxalic acid

"Shameless" food representatives: spinach, leeks, lettuce, cauliflower, bamboo shoots, beets, etc.

The Dou Mom Lecture has started - what is oxalic acid?

Oxalic acid is a metabolite of organisms, a strong acid. Studies have found that more than 100 kinds of plants are rich in oxalic acid, especially spinach, amaranth, beet, taro, cauliflower and other plants have the highest content.

We all know that calcium is an alkaline substance. When oxalic acid, the outstanding representative of acidity, encounters alkaline little calcium, a chemical reaction will occur to form calcium oxalate.

Oxalic acid can reduce the bioavailability of mineral elements, and it is easy to form calcium oxalate with calcium ions in the human body, resulting in kidney stones.

This is also the reason why we need to blanch spinach before eating it, so that most of the oxalic acid can be removed.

2. Foods high in phytic acid

"Shameless" food representatives: soybeans, black beans, almonds, walnuts, etc.

The name is very similar. Yes, phytic acid is exactly the same as oxalic acid. After it encounters calcium, it will also undergo a chemical reaction to form the precipitation of calcium and magnesium phytate, which affects the absorption of calcium.

However, the phytic acid of fermented soy products will be greatly reduced, just like the common non-lactone tofu on the market, it is a good calcium supplement food.

Tips

Unlike oxalic acid, phytic acid itself is a nutrient that is beneficial to the human body.

①It has anti-aging effect;

② An important part of human cells.

3. Foods high in dietary fiber

"Shameless" food representatives: beans, grains, roots, peels, etc.

When it comes to dietary fiber, it leaves a good impression on mothers and fathers.

After all, most news has reported that children should eat more whole grains, and the dietary fiber in whole grains is good for children's health.

However, dietary fiber contains a variety of acidic groups such as uronic acid, which can be ionized into negative charge in the gastrointestinal tract and form complexes with metal calcium ions through electrostatic ionic bonds or coordination bonds, thereby affecting the absorption of calcium.

Therefore, this is also one of the reasons why we recommend that children eat whole grains appropriately, rather than eating more whole grains.

Tips:

Speaking of which, dietary fiber is also a tragic "character". In earlier scientific studies, scientists believed that dietary fiber is a polysaccharide, which can neither be digested and absorbed by the stomach, nor can it generate heat, so it is considered to be a "non-nutritive material". ”, so he was put into the “cold palace”.

However, with the development of nutrition and science, scientists have found that dietary fiber has a very important physiological role, so it is recognized as the seventh type of nutrient by the nutrition community.

The traditional six groups of nutrients are: protein, fat, carbohydrates, vitamins, minerals and water.

Dietary fiber can be on an equal footing with the traditional six types of nutrients, which can be regarded as "repentance".

However, children still can not eat too much!

4. Foods High in Phosphorus

"Shameless" food representatives: pumpkin seeds, sunflower seeds, soft drinks, dried lotus seeds, dried shrimps, etc.

Phosphorus is present in all cells of the human body and is also necessary for the maintenance of bones and teeth. The normal function of phosphorus requires vitamin D and calcium to maintain.

Normally, the optimal ratio of phosphorus and calcium in the human body is 1:2, and the two complement and restrain each other. Our intake of too much phosphorus will definitely affect the absorption of calcium.

Because phosphorus will promote the precipitation of calcium and phosphorus compounds in the body, long-term intake of too much phosphorus will damage the balance mechanism of calcium and phosphorus, change calcium metabolism, and affect calcium absorption.

5. High-fat foods

"Shameless" food representatives: fried food, puffed food, fatty meat

Grease is the collective name for oil and fat. Its function is to store and supply heat energy. When one gram of oil is completely oxidized in the body, it can generate about 39.8 kilojoules of heat energy.

However, we all know that consuming too much fat is not good for children. Even if fat has no effect on calcium absorption, we can't let children eat more of these high-fat foods, not to mention that it has an impact?

The fat in the oil can cause a large amount of fatty acids and calcium to combine into insoluble calcium soap calcium, which is excreted from the feces, which not only affects the absorption of calcium, but also causes the stool to harden.

These five categories of food are typical representatives of "big calcium stealers" and "shameless". Even if children like to eat them, parents should stop them!

Although we know that it is impossible for children not to touch them, we should also pay attention to the diet in our daily life. Don't let these foods that affect calcium absorption gather together, that's not good.

1. Vitamin D supplementation

Vitamin D is a desoluble vitamin, so what does it have to do with calcium?

The main role of vitamin D is to regulate calcium and phosphorus metabolism, promote gastrointestinal calcium and phosphorus absorption and bone calcification, and maintain the balance of blood calcium and blood phosphorus.

Therefore, children supplementing vitamin D will indirectly supplement calcium and phosphorus.

How to supplement vitamin D?

① sunbathing

The ultraviolet rays of the sun can promote the synthesis of vitamin D in the human skin and promote the absorption of calcium.

②Food tonic

Sea fish, animal liver, egg yolk, cod liver oil, etc. all contain more vitamin D.

2. Protein and Amino Acids

Amino acid is the basic unit of protein synthesis. When protein is sufficient, amino acid will synthesize soluble complex with calcium, which is conducive to calcium absorption by children.

Eggs, poultry, lean meat and dairy products are all important sources of protein, and these foods are delicious and I believe children will not refuse.

3. Lactose

Lactose is a unique carbohydrate that provides energy and is involved in the development of the brain.

At the same time, lactose can also form soluble low-molecular-weight complexes with calcium, increasing the concentration of free calcium ions and promoting passive diffusion.

Foods such as breast milk and milk are lactose-rich foods.

Tips:

Seeing this, some moms and dads may want to ask, don't children need to take calcium tablets?

The role of calcium tablets is to supplement calcium, while the role of Dou Ma is to absorb calcium. The properties of the two are different! Calcium deficiency in children is not necessarily a lack of calcium content, but also a lack of substances that promote calcium absorption. The key points are different.

mother's message

These "shameless" foods are just shameless in calcium absorption, which does not mean that they are bad guys. Children should eat them.

However, children must maintain a balanced diet. Only a balanced and varied diet can ensure the healthy growth of children! Ladies and gentlemen, what do you think? Come chat!