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Food digestion time

Сколько переваривает пища

As practice has shown, not all people are interested in the question of how much food is digested in the stomach .

And, I want to tell you that due to the lack of a clear idea of ​​the importance of this issue, many people, without noticing it, drive their health into a dead end.

The thing is that different foods require different “attention” from our digestive system.

What happens to food after we swallow it? For food to benefit a person and give the necessary energy, it must turn into chemical elements, which the body then absorbs. This process begins in the mouth when saliva dissolves and teeth grind food.

Сколько переваривает пища

Later, in the stomach, acid and gastric juices act on it. After leaving the stomach, food enters the intestines, where it continues to interact with the gastric juice. Then it is absorbed through the capillaries into the blood passing through the liver - thousands of enzymes located there neutralize any poison (such as alcohol, for example), while retaining useful iron, vitamins and glucose.

Gastric digestion time table

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Water

If you drink water on an empty stomach, water immediately passes into the intestines.

Juices and salads

Fruit juices, vegetable juices and broths are digested 15-20 minutes.

Semi-liquid (mashed salad, vegetables or fruits) 20-30 minutes.

Fruits

Watermelon is digested in 20 minutes.

Melons - 30 minutes.

Oranges, grapefruits, grapes - 30 minutes.

Apples, pears, peaches, cherries and other semi-sweet fruits - 40 minutes.

Vegetables

Mixed salads (fruits and vegetables) are digested for 20 to 30 minutes.

Raw mixed vegetable salads - tomatoes, lettuce ("romance", Boston, red, leaf, garden), cucumber, celery, green or red pepper, other juicy vegetables are digested for 30-40 minutes.

If vegetable oil is added to the salad, then the time increases to over an hour.

Cooked, stewed or steamed vegetables

Leafy vegetables - spinach, chicory, kale - 40 minutes.

Zucchini, broccoli, cauliflower, green beans, pumpkin, corn on the cob - 45 minutes.

Root crops - turnips, carrots, beets, parsnips, turnips, etc. - 50 minutes.

Concentrated Carbohydrates - Starches

Artichoke, acorn, corn, potatoes, Jerusalem artichoke, yams, chestnuts - 60 minutes.

Starchy foods, such as glazed rice, buckwheat, millet, cornmeal, oatmeal, quinoa, Abyssinian tartar, pearl barley are digested on average 60-90 minutes.

Concentrated Carbohydrates - Cereals

Brown rice, millet, buckwheat, corn flakes, oats (the first 3 are best) - 90 minutes.

Beans and legumes (Concentrated carbohydrates and protein, starches and proteins)

Lentils, lima beans, chickpeas, peas, beans and beans - 90 min.t

Soybeans - 120 minutes.

Nuts and seeds

Seeds - sunflower, pumpkin, pepita, sesame seeds - about 2 hours.

Nuts - almonds, filberts, peanuts (raw), cashews, Brazil nuts, walnuts, pecans - 2.5-3 hours.

If the seeds and nuts are soaked overnight in water, and then crushed, they will be absorbed faster.

Milk products

Skim milk, skimmed homemade cheese, ricotta, low-fat cottage cheese or cream cheese for about 90 minutes.

Whole milk curd - 120 minutes.

Hard cheese made from whole milk - 4-5 hours.

Animal squirrels

Raw animal proteins are digested in a shorter time than that indicated above for prepared / heated animal fats.

Egg yolk - 30 minutes.

Egg (full) - 45 minutes.

Fish - cod, scrod, flounder, sole seafood - 30 minutes.

Fish - salmon, trout, herring, fatter fish - 45-60 minutes.

Chicken - 1-2 hours (without skin).

Turkey - 2 hours (without skin).

Beef, lamb - 3-4 hours.

Pork - 4-5 hours.

Categories of food by the time it is digested in the stomach

More specifically, all food can be divided into 4 categories according to the time of its digestion in our stomach:

  1. that food that passes quickly (it is mainly carbohydrate food)
  2. average assimilation time (this is mainly protein food)
  3. food of long assimilation (it includes fatty foods and a combination of fatty and protein)
  4. excessively long digestion food and practically indigestible

Now let's describe everything in more detail and slightly structure the information received.

The first category includes: almost all fruits (with the exception of bananas, avocados and the like), vegetable and fruit juices (not mixed), berries, kefir.

All of the above products do not stay in our stomach for more than 1 hour. For example, fruits pass into the intestines from the stomach in 40 to 45 minutes. In some situations, they can take 35 to 40 minutes.

The second category includes: vegetables, herbs, dairy products with the exception of cottage cheese and hard cheese, seedlings, soaked nuts and seeds, all dried fruits. All of them enter our intestines after about 1.5 to 2 hours.

The third category includes: cereals and cereals, nuts and seeds that are not previously soaked in water, cottage cheese and hard cheese, all types of mushrooms, legumes (if they are boiled), bakery products made from premium flour. Their time in the stomach is 2 to 3 hours from the time they are received.

And finally, group 4 includes: tea with milk, coffee with milk, meat (including poultry, as well as fish), pasta (except for those made from whole grain flour or durum wheat flour), all types of canned food. All products from the 4th group are very difficult to digest, or practically do not digest.

What conclusion can we draw now, guided by information about how much food is digested in the stomach?

Everything is very simple:

  • If you want your health, you need to eat as many foods as possible, which are absorbed for a short period of time. Thus, you protect your digestive system, and the body spends less energy on its processing.
  • Avoid or eat at least those foods that belong to category 4.
  • It is not recommended to combine products and food that have different assimilation times in the stomach.
  • If you have problems with the stomach or intestines - eat only food from categories 1 and 2.
  • In the evening, you can also eat products from only 1 and 2 categories.

Let's look at specific examples.

How much cottage cheese is digested? First you need to understand that at lunchtime, digestion is stronger. Accordingly, in order to fully understand: how much cottage cheese is digested - it is also necessary to take into account the time of its use.

For example, if you eat it for lunch, it will already go to the intestines after 2 hours. If you ate it in the morning or in the evening, then the time increases to 3 hours or even more (for example, if you ate it before bedtime).

How much is a banana digested? Banana, as we all know, refers to fruit. Accordingly, to answer the question of how much the banana is digested is very simple. Like a fruit, it is already ready for further processing in 45 - 50 minutes. If the banana is green, it will be digested for 10 minutes longer than a well-ripened one.

How much is warm food digested? Warm food in the stomach is digested for about 2-3 hours and only after that it enters the small intestine, where the stage of cleavage of nutrients from foodstuffs continues. Two to three hours is the best time to digest food in the stomach and break down proteins. This is the norm, because with the ingestion of undigested proteins in the small intestine, the fermentation process begins.

How much is cold food digested? Cold food in the stomach is digested much faster: proteins do not have time to digest normally and are sent directly to the small intestine, the function of which is based on the breakdown and absorption of carbohydrates, since it is in it that the bacteria responsible for this "event" are located.

As a result of the ingestion of undigested food in the stomach (proteins) into the small intestine, proteins, of course, are not normally absorbed. In addition, bacteria living in meat products (proteins) begin to multiply, which leads to various types of discomfort in the digestive tract (bloating, gas, constipation, etc.).

Golden Rules for Great Digestion

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In order to be healthy and live long, it is very important to know and take into account the time of digestion of food in the stomach. According to doctors, a person who, while eating, does not take into account the time of digestion of food, carries in himself kilograms of rotting food, earns many diseases and shortens his life. For good digestion, the following key points must be considered:

  • It is completely unacceptable to throw into the stomach, as in a “furnace”, products that require different times for digestion - this exposes it to an additional and unjustified load. For example, a potato dish with pork would be digested for about 5 - 6 hours, while separately consumed potatoes would be digested and sent to the intestines within an hour.
  • It is optimal to mix food of the same digestion time (vegetable salad, apples with pears, carrot and beetroot juice) - this will only slightly extend the time the food stays in the stomach due to the complexity of the selection of enzymes for processing compared to mono-nutrition. This option "hash" the most sparing for the body.
  • The addition of oils, even in salads, lengthens the time spent in the stomach by 2 to 3 times, due to the effect of enveloping food, and the inability to rationally process it with juices and enzymes.
  • You can not drink water, tea and other liquids if undigested food is in the stomach - this dilutes the gastric juice, complicates the digestion of food and increases the load on the gastrointestinal tract. In addition, undigested products, which will rot or wander in it for a long time, inevitably “slip through” with the liquid into the intestines.
  • If you drink water on an empty stomach, it immediately passes into the intestines.
  • Chew food thoroughly - this also speeds up the process of digestion due to better grinding and the beginning of processing by enzymes in the oral cavity.
  • Eat protein food only in a warm form - warm food in the stomach is digested for about 2-3 hours (which is the best time for protein breakdown), and only after that it enters the small intestine, where the stage of cleavage of useful substances from foods continues.
  • Cold food in the stomach is digested much faster, so the proteins do not have time to digest normally and are sent straight to the small intestine, as a result of which the bacteria in the meat products (proteins) begin to multiply and cause discomfort in the gastrointestinal tract (bloating, gas, constipation etc.)