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.
Calcium Calcium is a mineral important for the development of strong teeth and bones and for healthy muscle and nerve function. Food sources include milk, cheese, yogurt, goatâs milk, fortified soya milk, mineral water, ice cream, tinned fish, calcium-fortified tofu, calcium-fortified juices and cereals; and broccoli.