It helps you see
crab help humans: they are small right? and they get bigger and the cooker wants to get the big crabs to eat it to us. it is healthy because they give their lives to us, so we eat it with iron and vitamin. we cook it and they help us to be a good and healthy humans.
In humans, vitamin c.
Humans lack the enzyme necessary to produce vitamin C, known as L-gulonolactone oxidase. This enzyme is required for the conversion of glucose into vitamin C in other animals, but humans have a genetic mutation that prevents this process. As a result, humans must obtain vitamin C through their diet.
No. Silica, or silicon dioxide, is not a vitamin and should not be consumed by humans or animals.
For humans, nothing. (It may well be a vitamin for rats.)
Vitamin A. Humans cannot store Vitamin C.
Vitamin A doesn't have symptoms. Humans with either vitamin A toxicity or vitamin A deficiency have symptoms, however. Please be more specific with your question.
Vitamin C is the water-soluble vitamin that can help regenerate vitamin E after it has been oxidized. Vitamin C can act as an antioxidant and help restore the antioxidant properties of vitamin E.
I haven't heard of that but vitamin e does help.
A deficiency in vitamin B12 can lead to changes in body odor that make humans more attractive to mosquitoes.
Vitamin D is synthesized in the skin with the help of sunlight.
Vitamin D is effective for psoriasis.