Prevention of Food Adulteration Act, 1954 includes specific standards on edible oils giving broad specification for different oils.
The act allows two different oils to be blended and sold. The specifications do not lay down guidelines on fatty acid composition of different oils.
There are specifications for vanaspati. Companies can mix any quantity of any "harmless", vegetable oil in their brand. In September 2008, the
health ministry issued notification for labelling of food--for nutrition and health claims--under the act.