"Specific dietary recommendations" refers to guidelines or advice that suggest what types of food and drinks should be consumed or avoided based on individual needs or health goals. Full definition
Your veterinarian can make specific dietary recommendations for your cat. (suffieldvet.com)
I can't make specific dietary recommendations — that's quite a medical history, and this is just the internet, you know? (greensmoothiegirl.com)
The results also showed that changes in the diet made a difference, but more research is needed before we can get specific dietary recommendations. (mindbodygreen.com)