Food sources of vitamin K2 vary by subtype.
One subtype, MK-4, is found in some animal products and is the only form not produced by bacteria. Chicken, egg yolks and butter are good sources of MK-4.
MK-5 through MK-15 are forms of vitamin K2 with longer side chains. They are produced by bacteria and often found in fermented foods.
Natto, a popular Japanese dish made from fermented soybeans, is particularly high in MK-7.
Certain hard and soft cheeses are also good sources of vitamin K2, in the form of MK-8 and MK-9.
Additionally, a recent study discovered several pork products contain vitamin K2 as MK-10 and MK-11 (4Trusted Source).
The vitamin K2 content for 3.5 ounces (100 grams) of several foods is listed below.
Natto: 1,062 mcg
Pork sausage: 383 mcg
Hard cheeses: 76 mcg
Pork chop (with bone): 75 mcg
Chicken (leg/thigh): 60 mcg
Soft cheeses: 57 mcg
Egg yolk: 32 mcg
Vitamin D3 is only found in animal-sourced foods, whereas D2 mainly comes from plant sources and fortified foods.
Sources of Vitamin D3
Oily fish and fish oil
Liver
Egg yolk
Butter
Dietary supplements
Sources of Vitamin D2
Mushrooms (grown in UV light)
Fortified foods
Dietary supplements