Is LCT useful for Abnehmen?

Is LCT useful for weight loss? The LCT gene encodes lactase, the enzyme that digests lactose. Variants like rs4988235 determine lactase persistence (ability to digest milk). While lactose intolerance can cause bloating and discomfort, which might lead some to avoid dairy and reduce calorie intake, there is no strong evidence that LCT directly influences weight loss. Weight loss is driven by energy balance, macronutrient composition, and overall diet quality, not a single gene. Some DNA tests market LCT as part of a 'metabolism type' for weight loss, but this is largely marketing with weak evidence (marketing/unclear). The effect size of LCT on weight is negligible compared to lifestyle factors. Additionally, avoiding dairy without proper substitution can lead to nutrient deficiencies. For personalized weight management, focus on sustainable dietary patterns, physical activity, and possibly other genetic markers (e.g., FTO) with moderate evidence. LCT is useful for understanding lactose tolerance, but not as a weight loss tool.