Vitamin D3 & K2 After 50: What a Doctor Takes and Why

Vitamin D3 and K2 are two supplements Dr. Colbert puts at the top of his list for adults over 40 to 50. In this clip he explains why, how much he says most adults need, and which K2 he takes himself.

He covers how many Americans run low on vitamin D, the 2,000 units a day he typically suggests, why he says K2 matters for calcium and bone health as hormones decline with age, and the 100 to 200 micrograms of K2 he recommends daily. He also walks through foods that contain K2, including natto (and why fermented soybeans are different from soybean oil), eel, cheese, beef liver, butter, chicken, and egg yolks, plus how sugar and high-heat cooking create advanced glycation end products that he says can harden arteries over time.

This video is for educational purposes only and is not medical advice. Talk with your doctor before starting any supplement, especially if you take a blood thinner such as warfarin.

Products mentioned in this clip (Hormone Zone and Super K2) are from Divine Health, Dr. Colbert's company.