Calcium sulphate, "the blood purifier"
"Calcium Sulphate is a blood purifier and healer. It is found in the liver where it helps in the removal of waste products from the blood stream and it has a cleansing and purifying influence throughout the system.
-- The Biochemic Handbook
They give calcium supplements to horses
The need for calcium supplements is recognised by horse breeders. The following information was found on the Cyberhorse website and details different levels of calcium required for different horses for optimal performance.
The amounts given would be maintenance levels and designed to prevent bone loss. Once bone loss has occurred it would probably be a different story.
Note the amounts given for horses vary between 30 grams to 160 grams per day. Admittedly, a horse is a bigger animal than a man, but when you consider the RDA for humans is somewhere around 1 gram to 1.2 grams a day, it makes you wonder.
Horses get looked after better
"To keep bones strong and healthy, horses must receive enough calcium to meet their daily needs. If they don't, they must "borrow" what they need from their bones, depleting reserves of this essential nutrient. Calcium deficiency in young horses causes them to grow with weak thin bones, whereas older horses can suffer from brittle bones and lameness.
"To prevent these problems, calcium supplementation is necessary, particularly growing and breeding horses, those on high grain diets and horses grazing tropical pastures.
"Calcium is also important for the proper functioning of nerves and muscles, so adequate daily intake is absolutely necessary for competition horses to perform at their best.
"The following dose rates provide NRC# 50-100% of the horse's daily calcium requirement for each class of horse.