Not saying its an obligation. But people more often than not peoole adhere closely to their culture. To a point we are all subject to our environmentand cultures. If it was very easy obesity wouldn't be on the rise in general around the world. Our bodies have hormonal responses to salt sugar and fat.

This is a really complicated topic. I would recommend if it really interets you that you do some in depth study on the history of slavery in the Untied states and the fall out after the civil war. The discrimination and the opression that followed officially well into the 1960s. There's a greater lacknof understanding of nutrition and access to healthy foods among poor people in general and black people in the United States have been disproportionately poor.

As well as how current food trends developed in the Untied States.

Its very complicated we all have free will, however most humans conform to their environment and culture.

Theres no one simple answer. There are many factors some to do with individual choice and also outside forces.

Its southern food culture it gets passed down. Look at what makes up southern American cuisine and soul food. To a point it is a result of racism as the food preferences and cooking habits are in no small part influenced by waht slaves were able to obtain for food.

I imagine you might see higher obesity rates ong multigenerational southern whites too due to the shared food culture.

People are missing geography black people were largely enslaved in the southand lived for generations after in the south. Look at southern cuisine. The fact thet so much of traditional black american foods are based around the best you can with poor quality food available to slaves. There's a lot of fat, and frying etc. Cooking techniques used to make poorer quality food tasty.

If im not mistaken the south in general is more obese than other areas. I imagine southern whites are also more lokely to be obese as they were eating alot of thr same food as much if it was you know prepared by blacke people. Even if black people move from yhe south the food culture is born from there.