The phrase "natural gelatin" refers to a substance that is derived from natural sources, usually animal bones or collagen. It is used to thicken or solidify foods, such as jellies or desserts. Full definition
Learn how to heal your gut using natural gelatin. (foodrenegade.com)
The copious amounts of natural gelatin in broth, if you recall, serve to deter gastrointestinal bugs from attaching to the gut wall and wreaking havoc in the form of vomiting and diarrhea. (thehealthyhomeeconomist.com)
Be aware that even natural gelatin contains small amounts of MSG, so if you are particularly sensitive, you may wish to choose nutritional yeast as the better alternative. (thehealthyhomeeconomist.com)