This detailed macronutrient calculator walks you through the process but if you need more of a deep dive check out the step-by-step instructions below. Your BMR is the number of calories your body ...

To determine how many calories you should be eating, input your details into the handy calculator, which takes exercise ...

Use this calculator to find out how many calories you need to maintain your current weight. If you have an overweight BMI, then you can reduce that figure by up to 500 calories a day to start ...