Myths vs facts: Insulin and Darmgesundheit

Myth: Insulin resistance is solely caused by eating too much sugar. Fact: Gut health plays a key role. Dysbiosis can promote low-grade inflammation and impair insulin sensitivity. Short-chain fatty acids (SCFAs) from fiber improve insulin action. Myth: Probiotics can cure insulin resistance. Fact: Some strains show modest benefits in trials, but evidence is mixed and not strong enough for general recommendations. Myth: A DNA test can predict your insulin response. Fact: Variants like PPARG Pro12Ala or TCF7L2 have small effect sizes; lifestyle and gut microbiome are far more influential. Caveat: Many claims about insulin and gut health are based on animal models or small human studies. For metabolic concerns, consult a physician. Evidence: human-moderate to mixed.