Guinea pigs benefit from a diet of fresh grass hay, such as timothy hay, in addition to food pellets, which are often based on timothy hay.See also: Skinny pig. A guinea pig being examined by a veterinary medical officer for a study on leptospirosis.
Guinea pigs and primates, including humans, cannot manufacture their own vitamin C, so it is essential to supplement their diet with it. Vitamin C is vital for the normal development and maintenance of skin, joints, and mucosal surfaces, like gums.
What vitamins and supplements guinea pigs need, safe dosages, signs of deficiency, diet with hay/pellets, vet guidance.

Vitamin C for guinea pigs is one of the most important parts of their diet. Unlike many other animals, guinea pigs cannot produce their own vitamin C, which means they must get it entirely from food and supplements. Without a proper supply, guinea pigs are at risk of serious health problems, including scurvya painful and sometimes life-threatening condition.
One of the most common nutritional issues in guinea pigs is vitamin C deficiency (scurvy). Guinea pigs, like humans and some other mammals, can't make vitamin C and must get it from their diet. Vitamin C is essential for healthy skin, joints, blood vessels, and other tissues. Without enough vitamin C, guinea pigs can lose their appetite, develop dental problems, have swollen joints, bleed ...
Furthermore, visual representations like the one above help us fully grasp the concept of Guinea Pig Diet For Skin Supplements.
Many products marketed as small-pet supplements are easy to skip. Multivitamins, yogurt drops, seed mixes, mineral wheels, and salt licks are usually not necessary for guinea pigs on a balanced diet. Some add sugar, calcium, or other nutrients your guinea pig does not need in extra amounts. Others can crowd out hay intake, which matters because fiber is essential for normal tooth wear and gut ...
diet specifically formulated for guinea pigs.
Nutritional modulation of guinea pig skin hyperproliferation by essential fatty acid deficiency is associated with selective down regulation of protein kinase C-beta.