There is so much conflicting information when it comes to what method is best for fat loss which understandably causes a lot of confusion.
To lose fat there is just one requirement and that is to be in a calorie deficit (eating less calories than you are expending). The nutritional approach you choose to follow in order to achieve a calorie deficit is up to you.
1. More sweating = more fat loss
Sweat has nothing to do with fat loss or the effectiveness of your workout. Sweating is your body's mechanism of regulating temperature.
What is the most important factor for fat loss?
In order of importance (from bottom to top):