Women enjoying life, vitamin k1 hero photo

Ingredient Repository · Ingredient

Ingredient

Vitamin K1 for healthy blood and bones, delivered by live probiotics.

An essential fat-soluble vitamin that helps your blood clot normally so cuts stop bleeding.

What it is

Vitamin K1 (also called phylloquinone) is an essential fat-soluble vitamin found naturally in dark leafy greens like spinach and kale. In supplements like PregBiotics Essentials with Omega, it works alongside friendly probiotics to support healthy blood vessels and normal blood clotting during pregnancy and everyday life. Your liver relies on vitamin K1 to produce the proteins that manage blood clotting.

Also known as: Phytonadione, Phylloquinone

Key benefits

  • Helps your body make key clotting proteins, so cuts and grazes stop bleeding naturally.
  • Supports normal blood clotting processes, keeping your blood vessels healthy.
  • Promotes vascular health during tissue repair and pregnancy, helping mother and baby stay supported.
  • Works with calcium-binding proteins, supporting healthy blood vessels and soft tissues.

Amplified by probiotics

Vitamin K1 is absorbed through your gut wall with the help of digestive fats. Probiotic bacteria maintain a healthy, calm gut lining so nutrients like vitamin K1 can be absorbed efficiently into your bloodstream. Friendly gut microbes also convert vitamin K into active forms, giving your body extra support.

Typical dose

70–120 µg/day

The evidence

Evidence: strong

Decades of human research validate vitamin K1's essential role in enabling your liver to create vital blood clotting proteins. Human studies confirm its safety and importance for maintaining healthy circulation (Suttie JW. 2014, Adv Nutr; Shearer MJ, Newman P. 2014, Adv Nutr; Akbari S, Rasouli-Ghahroudi AA. 2018, Cureus).

  1. Suttie JW. Vitamin K and human nutrition. Adv Nutr. 2014;5(2):137-138 PubMed ↗
  2. Shearer MJ, Newman P. Metabolism and cell biology of vitamin K. Adv Nutr. 2014;5(1):68-75 PubMed ↗
  3. Akbari S, Rasouli-Ghahroudi AA. Vitamin K and Bone Metabolism: A Review of the Latest Evidence in Preclinical and Clinical Studies. Cureus. 2018;10(6):e2844 PubMed ↗

Safety & who should check first

Very safe at recommended daily dietary amounts. If you take blood-thinning medications like warfarin, speak to your doctor before changing your vitamin K intake, as consistent daily levels are essential.