In the large intestine.
Acts as a gland by synthesizing vitamin A.
Vitamin K is made from bacteria from the intestine.
It would end the production of vitamins because bacteria that live in your intestines make small amounts of vitamin K.
Bacteria in the large intestine can produce important vitamins for the body. For example, some bacteria produce vitamin K from eating fiber. Some bacteria also produce vitamin D.
Shortest answer, no. Vitamin K is a vitamin.
Bacteria are microscopic organisms. They can either be dangerous or good. Bacteria can cause infections in the body or can help in the process of decomposition. Bacteria in your gut help you by synthesizing vitamins and amino acids that you can't live without. Meanwhile, bacteria that normally live on your skin help protect you from attack by harmful microorganisms. You could say that a human being is a walking ecosystem, or biome. In fact, all living things are exquisitely interconnected.
There are 4 forms of vitamin D, and the important ones are synthesized by the reaction between UV rays and cholesterol in our skin. Vitamin K2 is synthesized in the guts by bacteria. Vitamin B3 Niacin is synthesized in small amounts by gut bacteria. Vitamin B5 Pantothenic Acid is synthesized in small amounts by gut bacteria. Vitamin B7 Biotin is synthesized in small amounts by gut bacteria. Vitamin B9 Folic Acid is synthesized in small amounts by gut bacteria. Vitamin B12 is synthesized in the guts by bacteria.
The Colon
Produce vitamin k and vitamin b
The skin, liver, and kidneys participate in synthesizing the active form of vitamin D.
Depends on the bacteria. For example, bacteria E. Coli is needed for production of vitamin K.
Bacteria in the large intestine can produce important vitamins for the body. For example, some bacteria produce vitamin K from eating fiber. Some bacteria also produce vitamin D.