Fat is necessary
Avoiding fat as much as possible not only has the potential to derail your weight loss goals because you're crazed with hunger and binge on the wrong types of foods, but you actually need it to function well as a living human being.
Jess Scott, nutritionist for Graze, explains that omega-3 fatty acids, which are polyunsaturated fatty acids found in things like walnuts and fish oil, work with your body to help it function normally. Monounsaturated fats, which you can find in things like olive oil and avocados, help contribute to a healthy blood flow to the brain and they also work with your body to absorb fat-soluble nutrients, which includes a lot of essential vitamins.
You need all that stuff, so don't wreck your brain and body because you're afraid of consuming fat. Just try to make sure you're favoring eating more unsaturated fat in the form of plant oils, fish, and nuts than saturated fat -- though red meat does contain some unsaturated fat, so don't kill yourself if you can't resist that burger every once in a while.
A cautionary note
Even though these are the good types of fat, don't go bonkers as you chow down -- no matter what kind of fat you eat, it still provides nine calories per gram, which is more than double that of what carbs and protein will give you (both provide four calories per gram each). The good news is that eating fat will help you feel full faster, requiring less input than carbs or protein.
So thanks, fat. Thanks a lot! As long as you do it right, fat can help you shed weight, which is what you've dreamed about your entire life, right?
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Monica Beyer is a health writer who is stocking up on seeds and nuts. Because science. Follow her @monicabeyer.