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Is vitamin k2 bad for kidneys?

We all know that vitamin k2 has a lot of benefits for the human body, so does it have any disadvantages? Especially for the kidneys?

What are the dangers of taking calcium supplements incorrectly?

When calcium enters the body, it works primarily in the small intestine, where the intestines absorb it into the bloodstream. Calcium that enters the bloodstream becomes free calcium. Ideally, calcium follows the bloodstream and reaches a person’s bones or teeth. However, some calcium may fly against the wind and get deposited in places you don’t expect. In the end, osteoporosis is not resolved and triggers a whole host of other ailments.

Is vitamin k2 bad for kidneys?

The benefits of vitamin k2 for the kidneys are:

Chronic kidney disease is defined as an impairment of renal function and manifested by abnormal albumin excretion or renal insufficiency, diagnosed by a measured or estimated glomerular filtration rate (GFR) that persists for more than three months.

Chronic kidney disease progression is associated with many serious complications, including cardiovascular disease, hyperlipidemia, anemia, and metabolic bone disease
End-stage renal disease (ESRD) and the subsequent need for dialysis or transplantation often account for a large portion of the total cost of care and impose a heavy burden on the patient.
Adequate vitamin K intake is associated with lower all-cause and cardiovascular mortality in patients with chronic kidney disease, according to an observational study.


kidney iamge from

BUT,Supplementation can be harmful to the kidneys if it’s not done in the right way,Vitamin k2 is a fat-soluble vitamin that plays important roles in the body, including maintaining bone health and promoting blood clotting. However, if ingested in excess or used inappropriately, vitamin k2 may have some adverse effects on the kidneys.

Firstly, vitamin k2 is mainly metabolized in the liver and excreted through the kidneys. Therefore, if too much vitamin k2 is ingested, it may increase the burden on the kidneys and lead to kidney damage. This may manifest in kidney diseases such as decreased kidney function, kidney stones, and glomerulonephritis.

Secondly, the complex formed when vitamin k2 combines with calcium ions may be deposited in the kidneys and form kidney stones. This may lead to symptoms such as renal colic, hematuria, frequent urination, and urgency, and in severe cases may require surgical treatment.

In addition, vitamin k2 may interact with certain medications to increase the risk of kidney damage. For example, when Vitamin k2 is used concurrently with certain antibiotics, diuretics and other medications, it may increase the burden on the kidneys and lead to kidney injury.

Therefore, when using vitamin k2, you need to follow your doctor’s advice and follow the proper dosage and usage. Especially for those who have kidney disease or renal insufficiency, they should be cautious in using Vitamin k2 so as not to aggravate the burden on the kidneys and lead to adverse reactions.

Other than that, what are the other points to keep in mind?

(1)Do not use with anticoagulants, such as (since vitamin k has a coagulation-aiding effect, it may counteract the effects of the drug).

(2)High doses of vitamin A appear to interfere with vitamin k absorption, while high doses of vitamin E may inhibit vitamin k-dependent carboxylase activity and interfere with coagulation mechanism.

(3)Prolonged use of broad-acting antibiotics, e.g., cephalosporins and salicylates, may interfere with vitamin k synthesis in the gut.