New FIRE strategy that I'm debuting in this post. The plan is that when you're still a kid living with your parents, eat everything you can. The food is free, so use it to get very very fat.

Then when its time to fire, you go on a diet where you reduce your calorie intake to what is required to maintain your weight, minus 3%. 3% is what I call the Safe Weightloss Rate (SWR). So while you're FIRED, you draw down on both your bank account and your calories. This reduces your food budget throughout the FIRE process and means you can retire sooner. Also, as you get closer to a healthy weight, your healthcare spending will also go down, further reducing the amount that you need to save up to FIRE.