Vitamin K-2

Vitamin K-2 and 43 near-identical products are sold under 20 different brand names — a near-twin Formula Twins cluster.

Product	Brand
Vitamin K-2	GNC Preventive Nutrition
Low-Dose Vitamin K2 45 mcg	Life Extension
Vitamin K2 45 mcg	Nutri-Rich
Vitamin K2 100 mcg	Nature Made
Low Dose Vitamin K2 45 mcg	Life Extension
K-2 50 mcg	Swanson
K-2 with Nattokinase	Swanson
Real Food K-2 200 mcg Maximum Strength	Swanson
Vitamin K-2 100 mcg	GNC
MK-7	Healthy Directions
Low Dose Vitamin K2 (MK-7) 45 mcg	Life Extension
Vitamin K2 MK-7 (Menaquinone-7) 45 mcg	Carlson
Vitamin K2 MK-7 (Menaquinone-7) 45 mcg	Carlson
Vitamin K2 Menaquinone-7 100 mcg	Basic Vitamins
Vitamin K2 50 mcg	Bronson
Vitamin K2 50 mcg	Bronson
Vitamin K-2 Mena Q7	DC
Vitamin K-2 Mena Q7	DC
Vitamin K-2 Mena Q7	DC
Vitamin K-2 Mena Q7	DC
K2 100 mcg	Swanson
MK-7	Healthy Directions
Vitamin K2 as MK-7 100 mcg	Healthy Origins
Vitamin K2 as MK-7 100 mcg	Healthy Origins
Vitamin K2 MK-7 100 mcg	Nutricost
K2 50 mcg	Swanson
Vitamin K2 MK-7 120 mcg	ProCaps Laboratories
K2 100 mcg	Nature Made
Vitamin K-2	Puritan's Pride
Vitamin K2 1% (MK-7)	BulkSupplements.com
Vitamin K2 1% (MK-7)	BulkSupplements.com
MK-7 90 mcg	Jarrow Formulas
MK-7 90 mcg	Jarrow Formulas
Vitamin K2 MK-7 (Menaquinone-7) 90 mcg	Carlson
Vitamin K2 MK-7 (Menaquinone-7) 90 mcg	Carlson
Vitamin K2 MK7 Softgels 100 mcg	BulkSupplements.com
Vitamin K2 (as Menaquinone-7)	Lake Avenue Nutrition
Vitamin K2 (as Menaquinone-7)	Lake Avenue Nutrition
MK-7 90 mcg	Jarrow Formulas
Vitamin K2 MK7 Softgels 100 mcg	BulkSupplements.com
Vitamin D3 10,000 IU & K2 200 mcg	Micro Ingredients
Vitamin K2 MK-7 120 mcg	ProCaps
Vitamin K2 MK-7 60 mcg	ProCaps
Vitamin K2 MK-7 100 mcg	Nutricost