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Vitamin K is an essential vitamin. It is one of the four fat-soluble
vitamins, along with vitamin A, vitamin D, and vitamin E. Vitamin K can be
found in dark green vegetables, matcha tea and natto (fermented soybeans).
Vitamin K2 can also be found in animal products, since it is a result of
The Recommended Daily Intake (RDI) of vitamin K is sufficient to support
healthy blood coagulation. Higher levels of vitamin K, however, provide
benefits for cardiovascular and bone health. Unfortunately, it is difficult to
obtain high levels of vitamin K from food alone.
Optimal levels of vitamin K are associated with improved bone circumference
and diameter. Vitamin K can also protect cardiovascular health. It reduces the
calcification and stiffening of arteries, which reduces the risk of
cardiovascular-related mortality. Vitamin K may have a role to play in cancer
therapy and anti-aging treatments. It may also help with regulating insulin
sensitivity and reducing skin reddening, but more research is needed to
determine if vitamin K has an active role to play in these areas.
Vitamin K’s main mechanism is through the vitamin K cycle, which is a
cyclical metabolic pathway that uses vitamin K to target specific proteins.
When a protein expresses glutamate, it is targeted by vitamin K, which causes
it to collect more calcium ions. Calcium ions are removed from the blood
stream, which prevents build-up in the arteries.
Vitamin K is often supplemented alongside vitamin D, since vitamin D also
supports bone health. In fact, taking both together will improve the effects of
each, since they are known to work synergistically. Excessive vitamin D can
lead to arterial calcification, but vitamin K reduces this build-up.
Vitamin D is a fat-soluble nutrient. It is one of the 24 micronutrients
critical for human survival. The sun is the major natural source of the
nutrient, but vitamin D is also found naturally in fish and eggs. It is also
added to dairy products.
Supplemental vitamin D is associated with a wide range of benefits,
including increased cognition, immune health, bone health and well-being.
Supplementation can also reduce the risks of cancer, heart disease, diabetes
and multiple sclerosis. People deficient in vitamin D may also experience
increased testosterone levels after supplementation.
The body produces vitamin D from cholesterol, provided there is an adequate
amount of UV light from sun exposure..
Most people are not deficient in vitamin D, but they do not have an optimal
level of vitamin D either. Due to the many health benefits of vitamin D,
supplementation is encouraged if optimal levels are not present in the body.
We stock 2 vitamin D & K supplements at Holistics Online - Vitamin D & K (which is practitioner only) and D3K2