I don't think it's very nuanced. The paragrpah in question is: The story for Type 2 diabetes is a bit more complicated. Obesity and inactivity play huge roles

I don't think it's very nuanced. The paragrpah in question is: The story for Type 2 diabetes is a bit more complicated. Obesity and inactivity play huge roles in the risk for the disease, but genetics are also a factor, even more so than for Type 1. " If you go to the link she references, theres a lot of statistics about gentic factors on Type 1, but very little in Type 2. Type 1 has: "If you are a man with type 1 diabetes, the odds of your child developing diabetes are 1 in 17. If you are a woman with type 1 diabetes and your child was born before you were 25, your child's risk is 1 in 25; if your child was born after you turned 25, your child's risk is 1 in 100. Your child's risk is doubled if you developed diabetes before age 11. If both you and your partner have type 1 diabetes, the risk is between 1 in 10 and 1 in 4. There is an exception to these numbers. About 1 in every 7 people with type 1 diabetes has a condition called type 2 polyglandular autoimmune syndrome. In addition to having diabetes, these people also have thyroid disease and a poorly working adrenal gland. Some also have other immune system disorders. If you have this syndrome, your child's risk of getting the syndrome—including type 1 diabetes—is 1 in 2." And Type 2 has: "Type 2 diabetes runs in families. In part, this tendency is due to children learning bad habits—eating a poor diet, not exercising—from their parents. But there is also a genetic basis." It seems that Type 1 genetic factors are much more understood, and there is a correlation in Type 2.