The phrase "proven benefits" means that there is solid evidence supporting the positive outcomes or advantages of something. It implies that these benefits have been verified and can be trusted. Full definition
But I think people should make informed choices and part of being truly informed is acknowledging the scientifically proven benefits of breastfeeding as well as the proven risks associated with formula feeding. (phdinparenting.com)
Provides complete nutrition at every feeding, including proven benefits for brain and eye development. (get-your-baby-to-sleep.com)
There are scientifically proven benefits of writing down in a journal one new thing a day you're grateful for. (mindbodygreen.com)