These fats can be categorised into saturated, poly-unsaturated, and mono-unsaturated fat. Saturated fat is the most stable of the fats meaning that it can keep for a long time. On the opposite end of the scale, mono-unsaturated fat has a short shelf life and can turn rancid quickly making it toxic.
Some examples of saturated fat include butter, lard, bacon fat.
If you choose to use cold pressed oil like avocado oil, flaxseed oil, walnut oil, do make sure they are cold pressed, not heated, not filtered, or refined. The heating process changes the molecular structure of the oil.
Oils from nuts and seeds contain a high proportion of Omega 6, which is inflammatory to the body. They are OK to eat in moderation and should not form a high proportion of the diet.
Keep carbs down, consume more fat to burn fat, eat less because fat keeps you satisfied.
Find out more about Fats from Dr Sten Ekberg
Best fats to eat:
Saturated Fat vs Unsaturated Fat