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.
Our diet gives us calcium. 1  The foods highest in calcium include: 2  dairy products such as eggs, milk, butter and cheese â this is where most of our calcium comes from. 3  green vegetables such as broccoli, spinach and beans. 4  nuts. 5  whole grain foods such as bread, rice and cereals.