Can LCT help with weight loss?

The provided context does not contain any information about the LCT gene (lactase) and weight loss. Based on general scientific knowledge: LCT encodes lactase, the enzyme that breaks down lactose. Lactase persistence (common in Northern European populations) allows dairy consumption, and some observational studies suggest dairy intake may be modestly associated with weight maintenance or loss, possibly due to satiety or calcium effects. However, direct evidence linking specific LCT variants to weight loss is weak and inconsistent. Most associations are indirect, mediated by lactose intolerance and subsequent dietary changes. Without direct context or robust clinical trials, it is premature to claim that LCT testing can guide weight loss. Consumers should be cautious of marketing claims that overstate the role of single genes in complex traits like body weight.