
The oil brand ambassadors 
CSE's laboratory study found variations, often wide, in fat composition in different brands of the same type of oil. 
That made it clear that there is no check or standarization on the quality of the oils being sold. Following are some examples
The question is how is the oil we consume regulated.There are a number of players--from the Union Ministry of Health and Family Welfare, which enforces the Prevention of Food Adulteration Act, 1954 (pfa); the Bureau of Indian Standards, which  has a voluntary standard for oil; Agmark-the Agricultural Produce Grading and Marking Act- that set guidelines for its sale. In September  2008, the government revised its labelling requirements for food, which include provision for companies to publish nutritional information (see  box  Rules, but as good as not). Under this notification, companies have to publish information on the different fatty acids, including trans  fat,  mufa  and  pufa  in their product.
The regulation leaves much room for manoeuvre. As a result, companies can give the composition in a range--Rath vanaspati says its package  has saturated fatty acid in the range of 16-54 per cent;  mufa  36-65 per cent;  pufa   3-44 per cent and trans fats 8-33 per cent. Others print values that are standard compositions of oil found in academic literature. The  cse  laboratory study detected differences between the labelling claims and its analytical study. It is not clear who checks  the companies' claims.
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So, do we have  mufa-pufa  inspectors? The directorate of vanaspati, vegetable oils and fats has supposedly got  inspectors to check quality of oil. In addition, the food and drug administration of different state governments are required to inspect food that is  sold to us to enforce the provision of  pfa. There are also inspectors of the directorate of marketing and inspection  to check grade, quality and packaging. Seems there is no shortage of inspectors. But are they checking? 
As there are no mandatory standards, these sellers of our oil have to meet, it is anybody's guess what is checked and what is bottled. In  mid-2008, the UK Food Standards Agency wrote to its public saying it had found significant amounts of mineral oil mixed in the sunflower oil  being sold in the country. It asked for this brand to be recalled. 
So is our health at risk? Probably, but who cares.    
Lab study by Sapna Johnson, Nirmali Saikia, H B Mathur and H C Agarwal. Reporting by Vibha Varshney