Dogs

　　 Medicine supplementation is not as good as food supplementation. The same principle applies to supplementing calcium for dogs. Rather than giving dogs calcium powder or calcium tablets they do not particularly like, it is better for owners to use ready-made ingredients so dogs can supplement calcium from their normal diet. Here, the editor lists several calcium-rich foods that dogs can eat.
　　 1. Dairy products:
　　 Milk contains abundant calcium and is the best way to obtain calcium. The calcium it contains is also the easiest to absorb. Drinking a cup of fresh milk (240 ml) a day can provide about 240 mg of calcium. If you worry about your dog being lactose intolerant, try homemade yogurt or cheese.
　　 2. Soy products:
　　 Soy products such as tofu, soy milk, dried tofu, and soybean powder are also very good calcium-supplementing foods.
　　 3. Fish and shellfish:
　　 Small fish eaten whole with bones are a good source of calcium. Among various fish, freshwater fish contain more calcium, and dried small fish can have as much as 2213 mg of calcium per 100 grams. Others such as clams and oysters are also foods rich in calcium.
　　 4. Seaweed:
　　 Kelp, kombu, wakame, black kelp, and other seaweed foods contain rich carotene, calcium, potassium, and dietary fiber. They are low in calories and can be used more in cooking. For example, dried kelp contains 737 mg of calcium per 100 grams.
　　 5. Yellow-green vegetables:
　　 Yellow-green vegetables contain more calcium than pale-colored vegetables and are rich in carotene, which can enhance antioxidant capacity and have significant anti-cancer effects.
　　 6. Bones:
　　 Both cartilage and large bones contain abundant calcium. Adding vinegar when simmering large bones can help release calcium.