The muscle is attached to a flat, strong tendon that is connected to the shoulder joint capsule. Along with the deltoid and pectoralis major muscles, the supraspinatus muscle helps initiate horizontal abduction (raising the arms skyward) of the shoulder.
Inositol has a calming effect as it is involved in the production and action of neurotransmitters (chemicals that transmit messages between nerve cells) like serotonin and acetylcholine. People who are depressed have been found to have lower levels of inositol than normal. Inositol has been tested as a treatment for depression, and initial evidence is encouraging. In a small double-blind study those on the supplement who took 12 g of inositol daily for 4 weeks showed significant improvement compared to the placebo group.
Inositol side effects, even in those who are taking supplements, are not a common problem. When inositol side effects do occur, they often include symptoms such as stomach upset, nausea, runny bowel movements, and in severe cases, vomiting. Some people may also experience headache, appetite loss, or dizziness when taking inositol supplements. Rarely, flushing or itching may develop as well.