The best source of Vitamin D is
Sunlight. If can not get enough
sunlight daily take vitanin D capsule
from chemist. You should also
take enough amount of Eggs as it
contain lot of Calcium, beside that Milk,
milk products, fruits, green vegetables
has enough amount of Vitamin D. It
enhances calcium level in body which
keeping bone density at required level
thus prtects from Arthiritis,
Osteoporasis and other old age bone
related diseases.