Aside from abstaining from the pollutions of idols and from blood, abstaining from gluttony and drunkenness, fasting at times the way Jesus taught, not stealing food, and respecting the consciences of others, I do not see moral obligations on all Christians (particularly Gentile Christians) on the type of food we eat. We should care for our health. Paul told Timothy to drink a little wine for his stomach's sake.
In a recent thread, someone posted a link to a study that showed that red wine contained something besides the alcohol that was good for gut bacteria. I listened to a video of the author of The Plant Paradox. He argued that a lot of health issues were related to problems with gut bacteria, including weight problems. He used to perform lots of heart surgeries, and was overweight himself. He thought whole grains were bad for you. If you eat wheat, his advice was to eat white refined flower not 'whole grains.' He lost a lot of weight by changing his diet. He eats a lot of sweet potatoes and green vegetables and douses his food with olive oil, consuming about a liter of it a week.
But his theory was based on evolutionary biology. He said you do not see gorillas eating the seeds off grass, so he preferred tubars. He says we are 90 something % the same as gorrillas with the main difference being gut bacteria. Gorillas have so much solid muscle but eat leaves. Much of our bodies are made of bacteria. I do not believe we came from apes, nor would I want to be like an ape, a less intelligent creature that might live to be 45. But from what he said, he lost a lot on his diet. And there are a lot of people with gluten allergies now. Tubars could be more gut-bacteria friendly than grains. If 'whole grain' part of the grain is less friendly to gut bacteria, it might be good to cut it out.
He was also against eating nightshades, tomatoes, bell peppers, chilli peppers, etc. He said if we did eat tomatoes to do like the Italians and remove the seeds first and that Italians did not historically have whole grain pasta. He also said not to eat beans unless you pressure cooked them, which got rid of the component he considered unfriendly to gut bacteria. As I recall, he was against squashes. No potatoes either, but sweet potatoes are okay. He was against most of the New World crops grown today.
I don't agree with the basis of his theory, but if it works for weight loss, it might help some people.
The big point to get out of this is that there are different approaches to determining what is healthy. Even the doctors disagree. Personally, I think the concern about sodium is overblown for most people.