Vitamin Rich Foods: Magnesium, Potassium & Iron Sources

Foods rich in magnesium, potassium, and calcium are essential for heart health and muscle function. Discover the best dietary sources for iron and B12, and learn how steaming vegetables compares to boiling for nutrient preservation.

Eggshell as a Source of Calcium

Published Jul,13 2011 | By Jane Smith

Survivalists, homestead and commercial farmers, pet owners and people interested in natural healing all tout eggshells as a source of calcium in the diet. Extracting the calcium takes time, but costs far less than supplements or fertilizers, an attractive economic option.