This might seem like nitpicking. But something with a strong effect on the body hardly every just has the effect you want it to have. By seeing it as a medicine it forces you to also look at the negative side effects of it's use over a long period.
It's been known to help people with arthritis, but is it wise to use it on a daily basis as a healthy person?
Even things as basic as muscle growth have been known to be suppressed by anti-inflammatory medicines like Ibuprophen. I wouldn't be surprised if Curcumine does the same. As well as indications that it might block proper immune responses to infections at times, but Im not sure about this.
In general a lifestyle change in my opinion would be: sleep, exercise, stress, meditation, cutting out fried food etc.