Yes Lamb Curry is healthy if you eat it in moderation. Lamb is good source of protein, vitamins and minerals. Protein is good for muscle development, maintenance and function. If you maintain a healthy lifestyle and exercise regularly you should go for high protein diet to maintain muscle mass. Since Lamb is a type of Red meat, eating it quite often may lead you to health risks such as Heart disease and Cancer. Many people believe the risk of heart disease is due to high Cholesterol and saturated fats which impairs blood lipid profile. However most recent studies suggest that dietary cholesterol is not a risk factor for heart disease. Cancer risk is due to many cancer causing substances present in red meat such as heterocyclic amines. Heterocyclic amines are mainly formed when meat is exposed to high temperature due to frying, grilling or baking. They are also found in high quantity in overcooked meat. Therefore mildly cooked meat is considered safer and healthy.