I'm 5'11 and under 240lbs. Technically, overweight. I don't drink alcohol (anymore) but I still drink fountain soda^. Because of my age, it goes straight to fat

I'm 5'11 and under 240lbs. Technically, overweight. I don't drink alcohol (anymore) but I still drink fountain soda^. Because of my age, it goes straight to fat, so I can't do the same volume I did in my 30s, especially with my bad knee which cannot hold over 250lbs. I have to eat rather healthy and take breaks from soda. I drink cold tea and hot honey water otherwise. Due to lifelong heart issues, I don't consume any other types of caffeine (chocolate...maybe a tiny piece every month or 2) or pure junk food like ice cream. ^Fountain soda has a different chemical composition than bottled or canned sodas. Notably less acid, which has left my teeth intact after 25 years. Also, you don't have the aluminum (which is what makes Pepsi taste better from a can) as a neurotoxin. Bottled soda is particularly vulnerable to chemical changes from light and degredation of the bottle's inner coating. I am a coke connoisseur, with a very sensitive palette and would never touch 2 liter soda again (glass bottles are ok, but again, the sugar and acid content is higher).