Q: Can large bone soup be used to replenish calcines?

A: The calcium content of ordinary large bone soup is very small, and the CP value of calcium is very low when using it.

I often hear that drinking large bone soup helps replenish calcium, and there is also a saying that adding acid helps the calcium in large bones be boiled out. A study published by Taiwanese scholars, boiled large bone soup with vinegar water and general water, and boiled for 0.5, 2, 4, 8, and 12 hours to measure the content of each metal. In the study, the pig's leg bones were first burned with rinse water for 2 minutes, and then added deionized water to boil. The weight of pig bones is 303g, and the weight of deionized water added is 4 times that of pig bones; the acidic group is added with 1000ml of deionized water in 20ml of vinegar. The pH value of the soup with vinegar is about 5 to 6; the pH value of the soup is about 8 to 8.5.

It was found that adding vinegar will increase the dissolution of the calcinium, and there is a significant difference between the unviable one at each time. The calcin content of ordinary large bone soup is very rare, only 9.87 to 34 mg of calcin per kilogram; it increases to 200 to 361 mg after adding vinegar.

According to Taiwan DRIs, adults need to consume 1,000 mg of calcium every day. Even if they drink 1 kg of large bone soup with vinegar, they can only get about 1/3 of the recommended amount. Therefore, drinking large bone soup to supplement calcium is definitely not a cost-effective way.

Q: Can eating black sesame make your hair darker?

A: No.

If sesame is really so harmful, this world doesn’t require hair dyes! Why does hair turn white? Possible causes include: decrease or loss of differentiation capacity of melanin cells, deficiency of growth or migration ability of melanin cells, or even apoptosis, or abnormal or reduced pigment production structures. In addition to the possible results of natural aging, it is also affected by transmission, psychology, recognition and nutritional conditions. Another key influence factor is: oxidative pressure. Oxidative damage can disrupt the survival of melanin cells, interfere with melanin-drying cells, and enzymes that produce melanin. I am sorry to tell you that there are no research evidence at present, taking sesame seeds or various special supplements can make your hair turn white.

Oxidative pressure is a very important factor affecting hair color. Excessive ultraviolet radiation, dyeing, inflammation, and even psychological pressure will cause an increase in oxidative pressure, so any living habit that will increase oxidative pressure should be reduced. For example: smoking, drinking, etc., in addition to this, you should also maintain a happy mood. Of course, it is also very important to have a balanced nutrition and eat more natural antioxidant vegetables and fruits!

Q: Should fruits be eaten before or after they are eaten?

A: It's OK, it depends on the situation.

1. People with reduced demand: A 2009 study showed that eating solid apples before eating can increase the feeling of foot and thus reduce the amount of food you eat next; another 2019 study also found that eating fruit before eating can reduce the subsequent hot intake. With the support of these two studies, I would suggest that if you are a person who reduces the demand and controls the heat ingestion, and you have the habit of eating fruits, you can eat fruit before eating.

2. People who like dessert after eating: Replace dessert after eating with fruit, can get richer nutrients, and in the case of excessive amounts, the heat will usually be lower than the dessert.

3. People with bad stomachs: Eating fruits on an empty stomach is more likely to cause stomach discomfort, so it is recommended to eat fruits after eating.

4. Diabetic patients: Diabetic patients with higher blood sugar after eating, if they have the habit of eating fruits at a meal, sometimes I would suggest that they can eat fruits between two meals to make the blood sugar fluctuate in a single meal.

In summary, there is no standard answer to whether fruits should be eaten before or after eating, and they must be determined according to each person's physical condition.

Q: Can babies eat honey?

A: It's absolutely not possible.

Honey may lead to baby Botox poisoning, which is a rare but serious disease caused by toxins. This toxin can attack the human nerves, causing difficulty breathing, muscular sensation, and even death. Most cases of baby Botox poisoning cannot be prevented because Botox is widely present in soil and ash. Even after cleaning, bacteria may be found on the floors, carpets and any walls in your home. For most healthy children and adults, botox spores are not dangerous, nor can they cause Botox poisoning (the more dangerous are toxins). However, when spores enter the baby's digestive tract, grow and produce toxins, some babies will suffer from botulinum toxin poisoning. Honey may contain bacteria that cause botox poisoning, so do not eat children's honey for less than 12 months. Honey is safe for people over 1 years old.

(This article is excerpted from the cutting-edge publication "Food Q_A of Lu Mengfan Nutritionist")