88. Vitamin A is a group of unsaturated
nutritional organic compounds that
includes retinol, retinal, retinoic acid,
and several provitamin A carotenoids.
Vitamin A has multiple functions: it is
important for growth and
development, for the maintenance of
the immune system and good vision
89. B vitamins are a class of water-
soluble vitamins that play important
roles in cell metabolism. Though
these vitamins share similar names,
they are chemically distinct
compounds that often coexist in the
same foods. In general, dietary
supplements containing all eight are
referred to as a vitamin B complex.
90. Vitamin C, also known as ascorbic
acid and l-ascorbic acid, is a vitamin
found in various foods and sold as a
dietary supplement. It is used to
prevent and treat scurvy. Vitamin C is
an essential nutrient involved in the
repair of tissue and the enzymatic
production of certain
neurotransmitters.
91. Vitamin D is a group of fat-soluble
secosteroids responsible for
increasing intestinal absorption of
calcium, magnesium, and phosphate,
and multiple other biological effects. In
humans, the most important
compounds in this group are vitamin
D₃ and vitamin D₂.
Editor's Notes
SCURVY DISEASE THAT IS CAUSED BY NOT EATING ENOUGH FRUITS AND VEG
SCURVY DISEASE THAT IS CAUSED BY NOT EATING ENOUGH FRUITS AND VEG