I can't say they make any difference.
I do currently consume a fair amount of turmeric, probably around 2 heaped tablespoons a week, in a soup and as a component of a rub on chicken.
I do not take capsules or add it to drinks.
I consume several other spices, thought to help with various things, and would make the same comment.
I consume them for flavour, no other effects than taste have been evident.
None seems to be a miracle cure for anything other than boredom and blandness, and even then only where some foods are concerned.