This typically results from not eating enough foods rich in essential vitamins and minerals, such as animal - source foods, fruits, vegetables and legumes. (sciencedaily.com)
Older ferrets can have painful dental disease that prevents them from eating enough food to meet their nutritional needs. (smallanimalchanel.com)
If you're eating 1200 calories or close to it, there's a good chance you aren't eating enough food for optimal thyroid production. (coachcalorie.com)