Tag: Vitamin k3 toxicity

According to the National Institutes of Health, vitamin K is a group of fat-soluble compounds, but not all are created equal. So, is vitamin K3 synthetic? Unlike the natural forms found in plants and fermented foods, vitamin K3, also known as menadione, is indeed a synthetic compound produced in a laboratory.

Recent research confirmed that the synthetic vitamin K3, also known as menadione, is toxic to humans and is no longer used in supplements. This fact makes the question, "Can you have too much K3?" not just a matter of dosage, but of avoiding it entirely due to its harmful side effects.

According to extensive research dating back to the 1980s and 1990s, the synthetic vitamin K3 (menadione) is toxic and harmful to humans. This starkly contrasts with the natural forms, vitamin K1 and K2, which are not associated with toxicity in humans, even at high doses.

While vitamin K is a crucial nutrient for blood clotting and bone health, it is essential to understand that there are different forms, with vitamin K3 being particularly hazardous. For humans, vitamin K3 (menadione) is a synthetic form that should not be taken as a supplement due to documented toxicity and serious side effects. The important question, "Do I need to take vitamin K3?", is best answered with a resounding no for human consumption.

Decades of research have established that the synthetic form of vitamin K, known as K3 or menadione, is toxic to humans. Therefore, despite its past use, there is no longer a K3 supplement available or approved for human consumption due to significant safety concerns.

Multiple studies have demonstrated that the synthetic vitamin K3, also known as menadione, is toxic to humans and should not be ingested. While natural forms like K1 and K2 are safe, it is crucial to understand who shouldn't take vitamin K3, which has been banned from over-the-counter sales in the U.S. for human consumption.

Research from the *Journal of Bone and Mineral Research* indicates that taking vitamin D with the largest meal of the day can significantly increase serum levels, a key factor when considering **when should you take vitamin D and K3** for maximum benefit. This highlights the importance of pairing these fat-soluble vitamins correctly with food for enhanced absorption.

Research from the 1980s and 1990s showed that Vitamin K3 (menadione), a synthetic form of Vitamin K, is harmful to humans, causing liver damage and the destruction of red blood cells. Given these dangers, it is critical to understand precisely **what does K3 do to the body?** and why it is not an acceptable dietary supplement for people.