Many people don't. The best way to get more calcium is from your diet. You probably already know that dairy products -- such as milk, cheese, and yogurt -- provide calcium. Other foods that are high in calcium include: 1  Spinach. 2  Kale. 3  Okra. 4  Collards. 5  Soybeans.6  White beans.7  Some fish, like sardines, salmon, perch, and rainbow trout.ther foods that are high in calcium include: 1  Spinach. 2  Kale. 3  Okra. 4  Collards. 5  Soybeans. 6  White beans. 7  Some fish, like sardines, salmon, perch, and rainbow trout.