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.
Common calcium sources There are different calcium sources commercially available for use in food and dietary supplements: inorganic salts such as calcium carbonate and calcium phosphate; and organic salts such as calcium citrate, calcium lactate, calcium lactate gluconate and calcium gluconate.ricalcium citrate (TCC), commonly referred to as calcium citrate, is a high-quality calcium source for food fortification. Its main characteristics are good solubility at low pH, a neutral taste and flavor profile, high calcium content and excellent bioavailability.