I'm in the food business and I hang around with many "foodies" all day long. Eating. It can kill you. In fact, 95% of what is available in food stores is designed to kill you. What I mean is that eating the wrong stuff can and will kill you. Seed oils (canola, safflower, sunflower, soybean and corn oils) are all bad and can lead to joint inflammation, and digestion problems. Best food oils are cold pressed organic (and real actual) olive oil, cold pressed avocado oil, coconut oil and ghee, or even butter. Then there's sugar, the refined type, does nothing for your gut but help to eliminate the good bacterias, and can promote headaches and joint pain. Natural sugars in fruits are the best kind as food additives (or just eat the fruits). Everyone needs some natural sugars since that's what makes your body go and maintain brain health. I could list a ton of other good and bad, but there's enough on the innertubes already concerning health and food. When in doubt about ingredients listed on labels, either study up or get a good phone app that warns you. The BobbyApproved app is a trusted source.
I went off processed sugars 9 years ago. No more migraines, much reduced inflammation and joint pain, my gums around my teeth regenerated a bit, even life-long warts on fingers slowly went away. I then began eliminating the bad oils, and feel healthier as a result. I eat less red meat and more fish now. I also add powdered collagen peptides to drinks every day for better bone, hair, nail and joint health. My general condition these days is far better than it was 10 years ago.