BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Vitamin K deficiency is rare-adults usually have enough vitamin K because normal bacteria in the gut produce it, and it is also in the fat of many commonly available foods. Not having enough vitamin K in the body can make you bruise or bleed more easily than usual. A blood test can confirm vitamin K deficiency.

Detailed explanation-2: -Early and classical VKDB are more common, occurring in 1 in 60 to 1 in 250 newborns, although the risk is much higher for early VKDB among those infants whose mothers used certain medications during the pregnancy. Late VKDB is rarer, occurring in 1 in 14, 000 to 1 in 25, 000 infants (1–3).

Detailed explanation-3: -Vitamin K deficiency is most common in infants, especially those who are breastfed. The deficiency can cause bleeding; therefore, all newborns should be given a vitamin K injection. Bleeding, the main symptom, can be life threatening in newborns.

Detailed explanation-4: -Vitamin K deficiency is rare in adults because many of the foods we eat contain adequate amounts of K1, and because the body makes K2 on its own. Plus, the body is good at recycling its existing supply of vitamin K.