Is mutton good for health ...nutritional value?

Yes, moderation: "Mutton" is meat from adult sheep that are > 1 year old (often around 3 years old). The term “lamb”is used for meat of sheep that are < a year old. Mutton has higher fat content than "lamb" . Lamb contains 51% zinc, 44% Selenium, 17% phosphorus, 12% iron, 7% potassium, 6% copper, 38% Vit B12, 27% VitB3, 11% Vit B2 RDA. A 100 gram (g) leg shank has 243 calories, 28.4 g of protein, 13.5 g of fat,