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.
Leafy greens, seafood, legumes, and fruit also contain calcium and many foods and drinks are fortified with the mineral. Just remember to try and pair non-dairy sources of calcium with vitamin D: The body needs vitamin D to help absorb calcium! Craving Calcium? Your Action Plan