Mustard Oil - Yehi hai right choice baby .. AAHA !!

Just wanting to know the nutrition value of the oils that i use for cooking, i decided to check up the labels on each of their containers - vegetable oil/ pure ghee & mustard oil.Well i was sort of paranoid seeing that the mustard oil i use says For External Use and no nutrition label.oh oo !!!
was i using this external oil for last 2 years of being in US ??
Well !! did some research and found out that one thing to be considered if you r in US , FDA doesn't approve mustard oil as cooking oil and even though you will get it in its purest form but marked as For external Use. Since it doesn't contain anything else i use it for cooking as so some of my others friends too.
My mom and grand moms always used mustard oil for cooking .But people say Olive oil is the best ?? Which one should we use ?? Definitely Mom is right - the mustard oil.Not only it adds a tinge to your food but also has the lowest amount of saturated fat ...believe it or not only 1%..compared to olive oil(14%) , sunflower oil (11%) and peanut oil (18%).
Saturated fat is the worst fat - gives you bad cholesterol and reduces good cholesterol.
for more info - check this site - http://www.recipetips.com/kitchen-tips/t--1194/oils-and-fats-nutritional-facts.asp
This site gives you a comparison of all the cooking oil...choose whats best for you and family - the mustard oil .