I always suggest a variety of natural oil sources from nuts, seeds, and organic animal and fish sources. (westonaprice.org)
If these issues are important to you, you may choose to avoid palm oil as well, or be attentive to whether the palm oil source is certified sustainable. (essentialketo.com)
The Canadian tar sands industry was a major part of that chapter, being at that time the leading unconventional oil source. (priceofoil.org)