Bananas can be eaten on an empty stomach, but there are 5 kinds of foods to eat carefully.

There are many kinds of food taboos circulating on the Internet. They are full of tricks and keep pace with the times. Even on an empty stomach, there are food rankings that cannot be eaten. It seems that they are right, but is there really so much attention?

These foods are not so fastidious.

1. Milk, Soymilk

Rumor has it that milk and soya-bean milk contain a large amount of high-quality protein. Drinking on an empty stomach will [be forced] to convert the protein into heat energy and consume it, which is very wasteful. Moreover, drinking milk and soya-bean milk on an empty stomach will also increase the burden on the stomach and intestines.

Truth: Milk and soya-bean milk both contain carbohydrates, which will be decomposed and supplied with energy preferentially without worrying about protein being wasted.

First of all, milk and soya-bean milk are different. Many people cannot drink milk on an empty stomach. Is because there is lactose intolerance problems (such as diarrhea), in this case, really don’t drink on an empty stomach, recommended to eat some other food first, and then a small amount of drinking many times, or directly choose yogurt, low lactose milk, etc. And soya-bean milk, as long as boiled thoroughly, even if it is drunk on an empty stomach, generally will not appear discomfort.

Secondly, regarding the statement of protein waste, on the one hand, the protein content in soybean milk and milk is only 2 ~ 4 g/100 mL. According to the logic of the rumor, eating beef on an empty stomach is really a waste of protein.

On the other hand, milk and soybean milk both contain carbohydrates (with more sugar added), which will be preferentially decomposed for energy supply. In addition, fat can also provide some energy, so protein is not the primary substance for energy supply and is not a waste.

In fact, the core question of this rumor is, what can protein do without being wasted? Of course, it is to build muscles. But when hungry, the human body will decompose its own fat and muscles to provide energy. If you have milk and soya-bean milk at hand at this time, drink it, otherwise you will save protein in milk and waste your muscles, which is the real loss-making business.

2. Bananas

Rumor has it that bananas have more magnesium, and magnesium is a sensitive element that affects heart function and has an inhibitory effect on cardiovascular diseases. Eating bananas on an empty stomach will make magnesium in the human body suddenly rise and destroy the balance of magnesium and calcium in human blood, which will inhibit cardiovascular diseases and is not conducive to health.

Truth: As long as the kidney is healthy, there is no need to worry that eating bananas on an empty stomach will affect your health.

The first two years also said that bananas cannot be eaten on an empty stomach because of [potassium], which becomes [magnesium]? Rumors are also keeping pace with the times.

Bananas are indeed high in potassium (256 mg/100g) and magnesium (43 mg/100g), but there are many other foods rich in potassium and magnesium, such as coconuts, raisins, water chestnuts, spinach, green beans, etc. Even mung bean cakes, moon cakes and potato chips in what are no worse than bananas. Why do you have to compete with bananas?

Secondly, even if it is really eaten on an empty stomach, Potassium and magnesium in food (including bananas) also slowly enter the body bit by bit, and the absorption amount is limited (for example, magnesium is 1/3), so it will not enter the blood instantly like an injection. Moreover, at the same time of absorption, the body will monitor the amount of potassium and magnesium at all times, and then metabolize the excess through the kidney and skin to maintain the balance of potassium and magnesium.

For people with healthy kidneys, there is no strict upper limit on the daily intake of potassium and magnesium. If you really want to destroy your body balance by eating bananas, it is estimated that you have to worry about being supported to death first.

3. Yogurt

Rumor: Yogurt should not be drunk on an empty stomach. When people are on an empty stomach, the pH value in gastric juice is less than 2, and lactic acid bacteria in yogurt can only grow, reproduce and produce effects in a slightly acidic environment with a pH value below 5.4. The strong acid environment with a pH value less than 2 is not conducive to the survival of lactic acid bacteria.

Truth: Even if there are no living bacteria, yogurt is a great food to cushion the stomach.

Why do you pay so much attention to drinking dairy products?

It is true that the acidity in the stomach is relatively high on an empty stomach, making it difficult for all kinds of lactic acid bacteria to survive. However, whether all kinds of lactic acid bacteria in yogurt can successfully colonize the intestinal tract to play the so-called health care effect is still controversial in academia. Therefore, it is not necessary to pay too much attention to the problem that they must be kept alive.

Moreover, even if there are no living bacteria, yogurt still has excellent nutritional value, can avoid lactose intolerance, and is more suitable for eating on an empty stomach.

To sum up, the proportion of the three major nutrients (carbohydrate, fat and protein) in yogurt is very reasonable. In fact, it is a very good food to cushion the stomach. Don’t measure its nutritional value only by the activity of bacteria, otherwise all kinds of normal temperature yogurt (sterilized) will be meaningless.

Step 4: Tomatoes

Rumor has it that tomatoes contain a large amount of pectin, persimmon gum phenol, soluble astringent and other components, which are easy to react with gastric acid, increasing the pressure in the stomach, causing gastric dilatation and stomachache, or forming gastric stones, especially when tomatoes are mixed with high protein foods such as milk or soybean milk.

Truth: Mature tomatoes do not have high tannic acid content and will not have side effects with high protein foods.

Pectin, astringent, stomach persimmon stone… looks familiar, isn’t this the problem of “persimmons can’t be eaten on an empty stomach” every winter? Students who wrote this rumor, are you sure you didn’t confuse persimmons with tomatoes?

It is really wrong to say that tomatoes are high in pectin, only about 0.1-0.7%, which is not as good as carrots (0.7-1%) or apples (1-1.5%). If you cannot eat them on an empty stomach because of the high amount of pectin, then many fruits and vegetables will be included in the [cannot eat] list.

Secondly, [persimmon gum phenol] and [soluble astringent] in the original text do not explicitly refer to what, and it is inferred that they should be tannic acid. It is widely found in various plants and can react with protein, which is the main reason for astringency, such as raw persimmons.

A large intake of tannic acid may indeed lead to persimmon stones in the stomach, which is also the main reason for the statements that persimmons cannot be eaten on an empty stomach and persimmons and crabs cannot be eaten together. However, the content of tannic acid in ripe tomatoes is not high, and the side effects of high-protein foods are even more nonsense. Otherwise, scrambled eggs with tomatoes will not cause dizziness in the kitchen.

These foods should be eaten carefully on an empty stomach.

In all kinds of statements, some are still a little reliable. Some foods should be eaten carefully on an empty stomach, especially for people with poor gastrointestinal and physical conditions.

1. Alcohol

Alcohol is a very small number of substances that the stomach can directly absorb. When drinking on an empty stomach, it is not only easy to stimulate gastric mucosa, causing gastritis, gastric ulcer and other pathological changes, but also easier to get drunk. For diabetics, fasting drinking is even more undesirable, prone to hypoglycemia, coma and other serious consequences.

Drink less wine if you can, and you’d better not drink it.

2. Food that is too cold and too cold

For people with strong intestines and stomach, it may not be a major event in what, but for many people with stomach discomfort, dyspepsia and weakness, eating too much cold food on an empty stomach will stimulate gastrointestinal contracture and even induce stomachache and diarrhea.

Step 3: Stimulant Foods

For example, spicy food containing a lot of chili, or food with too sour taste, will cause strong stimulation to gastric mucosa and intestinal wall when eaten on an empty stomach, causing gastrointestinal spasm, colic and affecting digestive function. In particular, people with digestive tract ulcer and other problems need not say much, attention must be paid.

4. Sweet Potato

Sweet potato is a delicious and healthy staple food, but eating a large amount of sweet potato at breakfast is easy to cause excessive gastric acid secretion, causing acid regurgitation and heartburn. Healthy people need not worry too much, but if they have gastrointestinal problems such as hyperacidity, gastric ulcer and abdominal distension and diarrhea, they must pay attention to the time and amount of sweet potato.

5. Persimmon

The main reason for persimmons lies in tannic acid, but the key still depends on the variety and maturity, and cannot be killed with one pole. Now there are many persimmons with low tannic acid varieties on the market. As long as you don’t eat persimmons that are not ripe, or don’t eat too much at one time, you don’t have to worry about the risk of tannic acid.


For food with good quality, there is very little saying that it must not be eaten on an empty stomach. It mainly depends on one’s physical condition.

For people with gastrointestinal sensitivity, there is nothing wrong with what to avoid some practices that will stimulate the digestive system. However, don’t overcompensate, because some strange reasons have wronged delicious food.