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Long-Term Study Links Vitamin K1 From Leafy Greens to Lower Vascular Disease Risk

Scientists say boosting daily vitamin K1 consumption could shape future dietary guidelines through vitamin-enriched food innovations.

Eating extra green leafy veg each day can reduce your risk of dying from heart disease

Overview

  • A 14.5-year study of 1,436 Australian women found higher dietary vitamin K1 intake was associated with less subclinical atherosclerosis and a reduced incidence of atherosclerotic vascular diseases.
  • Participants who consumed about 30% more vitamin K1 than current Australian dietary guidelines recommend—equivalent to roughly 1.5 cups of leafy greens daily—experienced significantly lower long-term risk of atherosclerotic vascular diseases.
  • Vitamin K1 from vegetables like spinach, kale and broccoli appears to inhibit vascular calcification and reduce carotid artery thickening, a key marker of atherosclerosis progression.
  • The nutrient also supports musculoskeletal health by promoting osteocalcin activation, which enhances bone mineralization and strength in older adults.
  • Researchers at Edith Cowan University are translating these findings into novel vitamin K1-enriched food products aimed at improving nutrition for vulnerable groups such as aged care residents.