Again, I read that and tried various forms. Yes, they do help a bit. No, they don't help a lot. The study you cited find only a weak effect on some endpoints.

Again, I read that and tried various forms. Yes, they do help a bit. No, they don't help a lot. The study you cited find only a weak effect on some endpoints. Same for fish oil and various omega-3 acids. The effects are either weak or in some cases non-existent ( https://www.nejm.org/doi/full/10.1056/NEJMoa1709691 https://www.nejm.org/doi/full/10.1056/NEJMoa1709691 ).