Rickets is the most common disease which causes by lack of Vitamin D and calcium, it causes muscles and bones to become soft, which can cause permanent deformities in children. Vitamin D is required for calcium to be properly absorbed into bones to strengthen them. Adults rarely develop rickets because their bones are not growing and do not need much calcium.
Thiamin, Niacin, Folate, Pyridoxine, Riboflavin1Nutritional Assessment, 5th Edition, Pg 348
You get the symptoms and signs of vitamin A deficiency. Those are night blindness, Bitot's spots, keratomalacia and corneal ulcers and blindness. Your diet is usually deficient in vitamin D, unless you eat fish, specially fish liver. You get the vitamin D in presence of sunlight. Sub-clinical deficiency of vitamin D is very common, probably.
Vitamin C, a water soluble vitamin, is easily destroyed under heat.
If it wasn't born with orange legs it might be low in copper or some other mineral - a blood test should work out for you which vitamin or mineral that it is deficient in.
The direct preposition of deficient (lacking) is "in."e.g. He was deficient in mathematical ability. (There was a deficiency.)It might also use "to" or "with" if the deficiency is being modified.e.g. The work was deficient to some degree. (e.g. in some way)e.g. The car is deficient with respect to its braking.NOTE : one cannot be deficient "at" something
Maybe the child will get kind of lonely or maybe not it might get jealous of another child because you might give the other child more attention
No, absolutely not. If there are other ingredients in the vitamin for filler, they might, but vitamin D will not cause hives, it is an essential vitamin. Getting hives from vitamin D would be like getting hives from vitamin C.
If you are speaking about multivitamins, then nothing bad will happen to you. They make different ones aimed at different age groups/sexes because normally certain groups are known to be deficient in certain things. It won't hurt you, but you might not be getting all of the vitamins that you might need, that's all.
to increase immunity vitamin c helps, found mostly in fruit but there is a larger amount if you just give the child a daily vitamin(appropiate for his/her health) you might want to ask the child's doctor first and ask about other ways to build immunity, or increase white blood cells
Vitamin A. Humans cannot store Vitamin C.
Vitamin A is stored in the liver
You might want to take supplyment to get vitamin C