Opioids are substances that act on opioid receptors to produce morphine-like effects. Medically they are primarily used for pain relief, including anesthesia. Other medical uses include suppression of diarrhea, treating addiction, reversing opioid overdose, suppressing cough, and suppressing opioid induced constipation.
Other foods that are high in calcium include: 1  Spinach. 2  Kale. 3  Okra. Collards. 4  Soybeans. White beans.  Some fish, like sardines, salmon, perch, and rainbow 1  trout. Foods that are calcium-fortified, such as some orange juice, oatmeal, and breakfast  cereal.
While your body usually removes excess amounts of dietary calcium through urine excretion, taking too many supplements can cause calcium to build up in your bloodstream. Natural sources of calcium include cheese, low-fat milk and yogurt, broccoli, almonds, dark leafy greens, oysters, canned salmon and tofu.ypercalcemia. Calcium helps your muscles function properly. Although calcium supplements can help prevent a nutritional deficiency, excessive amounts may cause hypercalcemia, a condition that commonly causes muscle weakness.