eli5 How does walking lose overall body fat?

Question

I know you can’t spot reduce, but if you walk a 3mph speed isn’t that just working on legs somehow?

In: 4

Answer 1

Yes it will burn fat. As long as there’s no sugar left to burn first. Most people use glucose as the priority fuel source. If your walk before you eat anything then try really hard to reduce sugar intake for the rest of the day, the fat will melt off. If you walk to justify a shitty high carb and sugar diet, nothing will happen.