1. Remember why you’re doing it
To lose weight, you need to be in calorie deficit from your Total Daily Energy Expenditure (TDEE). In plain English, the amount of calories you eat needs to be less than the amount of calories you burn each day. If you’re embarking on a fitness and weight loss programme, it’s worth remembering the basic principle of this energy balance equation and finding out roughly what your TDEE is to understand exactly why that extra gym class or eliminating that daily bag of crisps at lunch can help you lose weight.