I checked out the recipes on the iDiet website recommended in the article, and I'm feeling sad and deprived just reading them. I'm willing to suffer for better health, but I'd hate to suffer through a life of egg whites and margarine and then discover in the end that the science was wrong.
I highly suggest looking into a low carb high fat diet (paleo or keto), perhaps coupled with Intermittent Fasting (or even extended fasts every once in a while) if you want to reap the benefits described in this article without subjecting yourself to a life of miserable calorie counting. After a small period of adaptation, you won't have cravings, you'll have more energy and be more focused, and you won't have to cou…
Do you have sources for that? Which vegetables oils are healthy and which are unhealthy and why?
The only relevant knowledge I have is that saturated and trans fats are bad and that unsaturated are good. One source for that is for example https://www.hsph.harvard.edu/nutritionsource/what-should-you... .
If this is what you are refering to then margarine is indeed bad because it often contains high amounts of trans fat but for example coconut oil isnt good either for its high saturated fat content. Plenty of other vegetable oils should be fine judging by their fat contents rather than "really bad".