Wiktionary(0.00 / 0 votes)Rate this definition: 1  axiom(Noun) A seemingly self-evident or necessary truth which is based on assumption; a principle or proposition which cannot actually be proven or disu2010proven. 2  axiom(Noun) A fundamental theorem that serves as a basis for deduction of other theorems.
Vitamin D and Constipation-. A Preventable Problem. Constipation is one of these signs of magnesium deficiency and if you are getting constipation from vitamin d, then your body is telling you that you ARE magnesium deficient and that you probably have been for a long long time.
4. Vitamin E. This antioxidant vitamin, another immune system booster, won't do much, if anything, to shorten a cold, but it could keep you from getting one. In one year-long, high-quality study from Tufts University, 451 adults age 65 and older were given either 200 IU of vitamin E each day or a placebo.