The thesis statement you provided is a good starting point for an essay about the effects of large amounts of sugar in the typical American diet. It is specific, clear, and arguable. It also provides a good overview of the topic, which is the health problems that can be caused by excess sugar consumption.
Here are some supporting ideas that you could include in your essay:
* The average American consumes about 17 teaspoons of added sugar per day, which is more than the recommended daily limit of 6 teaspoons for women and 9 teaspoons for men.
* Excess sugar consumption can lead to weight gain, obesity, type 2 diabetes, heart disease, stroke, and some types of cancer.
* Sugar can also damage teeth, cause tooth decay, and increase the risk of gum disease.
* Sugar can also lead to mood swings, fatigue, and difficulty concentrating.
* Children who consume large amounts of sugar are more likely to become obese and develop type 2 diabetes later in life.
In your essay, you could discuss each of these supporting ideas in more detail, providing evidence from research studies and other sources. You could also discuss some of the ways that people can reduce their sugar intake, such as reading food labels carefully, choosing healthier foods, and cooking more meals at home.
I hope this helps!