GMOs and why you should never use Canola oil.

Olive oil comes from olives. Sesame seed oil comes from sesame seeds.
But what is a canola? Canola is actually a made-up word for a genetically modified product.
Canola stands for “Canadian oil low acid.” It’s (sadly) a Canadian invention and subsidized by the government. The subsidies make it very cheap to use, so almost all processed or packaged foods contain canola oil. Be sure to read the ingredients. Here’s why you should:

THE SCOOP ON CANOLA

Canola oil is developed from the rapeseed plant, which is part of the mustard family of plants. These oils have long been used for industrial purposes (in candles, lipsticks, soaps, inks, lubricants, and biofuels). It’s an industrial oil, not a food.
Rapeseed oil is the source behind mustard gas, and on its own it causes emphysema, respiratory distress, anemia, constipation, irritability, and blindness. But through the beauty of genetic modification, we now sell it as an edible oil.
The claim is that canola is safe to use because through modification it is no longer rapeseed but “canola.” Except… canola is just genetically modified rapeseed. It has been marketed as a wonder oil that is low in saturated fats with a beneficial omega-3 fatty acid profile. It is recognized by the American Dietetic Association and the American Heart Association based on the belief that the absence of saturated fats alone makes it healthy.
It is now believed that rapeseed has a cumulative effect, taking almost 10 years before symptoms begin to manifest. One possible effect of long-term use is the destruction of the protective coating surrounding nerves called the myelin sheath. This is like having raw, open wires in the body. Some symptoms include:

• tremors and shaking
• uncoordination when walking or writing
• slurred speech
• deterioration of memory and thinking processes
• fuzzy or low audio levels
• difficulty urinating/incontinence
• breathing problems/short of breath
• nervous breakdown
• numbness and tingling in extremities
• heart problems/arrhythmia

From a nutritional perspective, canola oil has been found to deplete Vitamin E. It has a tendency to inhibit proper metabolism of foods and normal enzyme function. It also depresses the immune system.
There is more information here