Many of the top ten leading causes of death in the united states have a strong correlation to what a person decides to eat or not eat during his or her lifespan. what are the top two leading causes of death in the united states?

Coronary disease and cancer

Explanation:

According to the World Health Organisation (WHO), the top two leading causes of death in the USA in 2019. were coronary disease and cancer, accounting for around 45% of all deaths.

Most common risk factors for coronary disease are: diabetes, food rich in fats, unhealthy diet, smoking cigarettes, stress, physical inactivity, genetic factors, alcohol abuse etc  

Most common risk factors for cancer are: cigarette smoking, industrial food, environmental factors, diet low in fruit, vegetables and fibers, genetic factors etc

We can see that common denominators for these two causes of death are unhealthy lifestyles and genetic factors.

Since one can't change its genetics, it is essential to have a healthy diet, avoid cigarettes and alcohol, be physically active etc.