Look, most people do not have diabetes or any other medical conditions that would contribute to or cause obesity.
Those are the people I was referring to. Whether you use the genetic excuse or "I have a medical condition" excuse (valid though it may be), if you watch what you eat you willl not become
morbidly obese if you eat and exercise well.
Diabetes and other conditions might make obesity more likely but it doesn't make it
certain. You can counteract the effects of diabetes and other conditions with a healthy diet and regular exercise.
Also diabetes can be caused by and not a cause of obesity. But most people aren't fat because of diabetes. The rate of diabetes is about 1 in 10 at the most. That was the statistic I saw for America. Although that may be overly high because most Americans are overweight and that is probably the cause of the diabetes. (Rather than diabetes being the case of obesity)
Which seems to be the case since the diabetes rate in the UK is only about 5%.
But even if we say that "increased risk factors" such as diabetes etc are causes for obesity they could only be the cause in perhaps 10-20% of cases at the very most.
Which means 8/10 people who are fat are fat with no underlying medical reason.
This is because the biggest contributing factors to obesity are
diet and
exercise. 8/10 obese people are obese because they eat too much and don't exercise.
EDIT: Diabetes rate in the US is 6.3% according to this article but not sure how recent it is
What is Diabetes? Facts About Diabetes