Sweet makes you happy
If you are always drinking something sweet, the concentration of serotonin, the endogenous happiness hormone, increases through a complicated metabolism in the brain. If the serotonin sinks, it quickly shows on the psyche - with a bad mood. Automatically, the craving for foods increases the hormone levels.
Effects on blood sugar levels
A bag of gummy bears is opened quickly! In addition, when eating sugary foods, the blood sugar level rises rapidly, with the pancreas working to produce insulin to normalize blood sugar levels. So, a lot of insulin is produced to make up for the high sugar level in the blood, sometimes even too much insulin, with the result that the blood sugar level may fall below the normal limit.
Now the body receives the wrong signal, namely to need even more sugar. However, the cravings for sweets increase. Fruit, vegetables and cereals are clearly healthier here.
Vitamins, flavors, dyes
However, fruit gums also contain vitamins and give them a healthy image. In addition, flavors and colors are contained in different proportions. And these are critical according to BfR: Excessive consumption of enriched fruit gum can possibly lead to undesirable health effects.
The manufacturers decide if and how many vitamins and minerals they add to the sweets. In order to advertise an additive, they must cover at least 15% of the daily requirement for an adult in 100 g / ml of food.
However, the reference values used for this purpose are not the reference values for the nutrient intake of the German Nutrition Society (DGE), but rather the recommendations of the US Food and Drug Administration (RDA = Recommended Daily Allowances) because of EU law.
The recommendations for children are lower but not taken into account. There is a risk of overdosage of individual vitamins or minerals when many fortified foods are consumed.
Risk of overdose of vitamins
Vitamin supplements are in any case dosed higher than indicated in the nutrition labeling. Only then can the corresponding concentration be guaranteed at the end of the minimum shelf life.
The Stiftung Warentest found up to three times the declared levels of vitamins. It has not been proven that vitamin supplements are effective at preventing disease. Various study results even suggest that the administration of isolated vitamins rather harms. Vitamins and minerals still seem to work most effectively when taken directly, ie directly from fruit or grains.