was sind kohlenhydrate — what does this mean exactly?

Carbohydrates are one of the three main macronutrients (alongside fats and proteins) and serve as the body's primary energy source. Chemically, they consist of sugar molecules (saccharides) classified into monosaccharides (e.g., glucose, fructose), disaccharides (e.g., sucrose, lactose), and polysaccharides (e.g., starch, fiber). During digestion, complex carbohydrates are broken down into glucose, which enters the bloodstream and influences blood sugar levels. The quality of carbohydrates matters: whole grains, legumes, and vegetables provide long-chain carbohydrates with fiber, promoting stable blood glucose and gut health. Refined carbohydrates (white flour, sugar) cause rapid spikes and are linked to metabolic diseases. Consumer tests claiming to optimize carb intake based on genes like TCF7L2 have limited evidence – genetic effects are small. A balanced diet emphasizing complex carbohydrates remains the scientifically sound recommendation. Note: Individuals with diabetes or insulin resistance should manage carbohydrate intake under medical supervision.