Seasonal variations in the vitamin A and the carotene content of retail butters.
D002079:Butter; D002338:Carotenoids; D012621:Seasons; D014801:Vitamin A; D014812:Vitamin K; D014815:Vitamins
D014815:Vitamins; D014801:Vitamin A; D014812:Vitamin K; D002338:Carotenoids; D002079:Butter
BUTTER/vitamins; CAROTENE; VITAMINS/A