You may be able to treat iron deficiency and decrease RLS symptoms by eating more iron-rich foods, such as: red meat; liver; spinach and other dark leafy greens; dried fruit; poultry; pork; seafood; iron-fortified cereals; beans; Eating foods rich in vitamin C along with iron-rich foods can help your body absorb iron better.
Parathyroid hormone (PTH) stimulates uptake of calcium into the bones (1) (and therefore osteoblast apoptosis (2)) and deportation of calcium from the bones (23), and inhibits excretion of calcium, generally increasing a low blood-calcium level. Low levels of PTH prevent bone loss.
And since calcitonin is antagonistic, does it inhibit osteoclast activity? (And would the opposite system apply to osteoblasts?) My reasoning is that PTH increases calcium levels in the blood, which means it induces osteoclast activity because osteoclasts break down bone and subsequently release calcium in the blood.