You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "the percentage of the inheritance of obesity that is accounted for by genetic factors is about?" whose answer is 40–70%.
Each document should contain about 30 words, and these documents should contain useful information.

Query: genetic contribution to obesity percentage
Useful Output:

Doc 1: As many as 400 genes have been shown to affect body weight in one way or another. In the largest study of its kind, researchers from the
Doc 2: Heritability estimates for obesity of between 0.5 and 0.8 in twin and adoption studies indicate a strong genetic contribution at the individual
Doc 3: There is a genetic component to human obesity that accounts for 40% to 50% of the variability in body weight status but that is lower among normal weight
Doc 4: A growing body of evidence suggests that obesity is, in fact, genetic. Somewhere between 200 and 500 specific genes have been linked to the disease.
Doc 5: Genetics can play a role in having obesity. Twin studies have found the heritability of obesity to be approximately 40% to 75%.