Will the calories from overeating sweets be fully absorbed

The calories from overeating sweets will not be fully absorbed, and the actual absorption rate is affected by factors such as digestive efficiency, food composition, and metabolic differences. The absorption of sweet food calories is mainly related to food type, eating speed, individual metabolic rate, balance of gut microbiota, and insulin sensitivity.

1. Food type:

Refined sugars such as white sugar and syrup have an absorption rate of over 95%, while complex carbohydrates containing dietary fiber such as whole wheat bread have an absorption rate reduced to 70% -80%. High fat desserts such as cream cakes may reduce some sugar absorption due to the delayed gastric emptying caused by fat.

2. Eating speed:

Eating quickly and in large quantities can cause a sudden increase in blood sugar, stimulate excessive insulin secretion, and promote fat synthesis. Chewing slowly can allow saliva amylase to fully break down sugars, reducing about 15% of sugar that enters the intestine without being broken down.

3. Metabolic Differences: Individuals with higher basal metabolic rates can burn more calories through glycolysis, while those with higher muscle mass have stronger glycogen storage capacity. The metabolic efficiency of sugar in patients with thyroid dysfunction or diabetes may decrease by 30% -50%.

4. Gut microbiota: Beneficial bacteria such as Bacteroidetes can ferment some unabsorbed sugars to produce short chain fatty acids, which account for about 5% -10% of the total calorie intake. Individuals with imbalanced microbiota may experience a 20% increase in sugar absorption rate.

5. Insulin resistance: When insulin sensitivity decreases, the cell's ability to uptake glucose decreases, and about 30% -40% of blood sugar may be converted into fat storage. Long term high sugar diet can exacerbate this metabolic abnormality.

It is recommended to control the intake of sweets within 10% of the total daily calories and prioritize natural fructose as a substitute for added sugar. Pairing with high protein foods can delay blood sugar rise, such as Greek yogurt with fruits. Aerobic exercise can enhance muscle glycogen storage capacity, while HIIT training can improve insulin sensitivity for up to 24 hours. It is recommended to test the level of glycated hemoglobin if there is persistent hunger or postprandial drowsiness. Children and pregnant women should pay special attention to controlling the intake of refined sugars to avoid affecting development and pregnancy metabolism.