An important source of vitamin k comes from bacteria in the gut which synthesise it. Long term antibiotic use kills the bacteria and leads to deficiencies
Scientific studies show that oranges tend to gain vitamin C after they are picked. After being picked oranges ripen quicker. This is the point at which the fruit builds its vitamin C content.
Being on your period does not make you loose.
Vitamin B Complex will help, but you must take it consistently every day.
Vitamin D is also known as Ergocalciferol (vitamin D2) and Cholecalciferol (vitamin D3).It is a fat soluble vitamin that helps body to absorb calcium. It is also known as sunshine vitamin because the body manufactures the vitamin after being exposed to sunshine.
Vitamin D (a vitamin truly crucial to mood and sleep stability) can be gotten by direct exposure to sunlight. I do not know of another vitamin that is obtained by non-food means.
Neither. Enzymes are proteins, with vitamins being coenzimes (organic) and minerals being inorganic substances,
Vitamin D tests require four hours of fasting before the test can be conducted. It is also necessary to refrain from taking any vitamin D supplements or being exposed to the sun.
A mutation which results in the organism being unable to produce an essential vitamin or amino acid. An example would be how humans cannot produce vitamin C.
When pregnant, you do not get your period
No because if you are on your period you are not pregnant.
Beriberi is caused by a lack of vitamin B1, pellagra by a lack of vitamin B3, while pernicious anemia is due to a lack of vitamin B12. A lack of Vitamin B is simply called a Vitamin B Deficiency.
Being sporty does not affect your period etc, and neither does being short. It is normal to get your first period between ages 9-16, so height does not affect your period, and being sporty does not affect your period.