On 2017 Dec 12, D Majerowicz commented:

In my opinion, a significant control group is missing in this study. The control group should not be a chow diet fed, but a chow diet supplement with olive oil, soy oil or any other oil of this kind. This control would exclude the possibility that the obtained results were caused by a high-fat diet and not by the canola oil. In the current study design, it is impossible to say if the significant effect came from the overall increase in dietary fat or from the specific fatty acid composition of the canola oil.

On 2017 Dec 12, D Majerowicz commented:

In my opinion, a significant control group is missing in this study. The control group should not be a chow diet fed, but a chow diet supplement with olive oil, soy oil or any other oil of this kind. This control would exclude the possibility that the obtained results were caused by a high-fat diet and not by the canola oil. In the current study design, it is impossible to say if the significant effect came from the overall increase in dietary fat or from the specific fatty acid composition of the canola oil.