at least this is my observation. First of all anecdotally in myself and second of all through observing people recognising their own resilience and irritability threshold being affected due to hunger, this is now recognised as being ‘hangry’.

I have also observed whilst working in gyms with body building competitors, the 12-week build up to the cut leads to mood swings and changes in responses to day to day interactions. In short body builders look forward to the cake they can have after the competition is over!

Let’s start with a simple understanding of calories in and calories out but let us change the work calorie for the word energy!

By understanding your energy expenditure you can work out what you need to fuel that, running on empty will only make you ill, running on too little without having the reserves for it will make you ill, running marginally below if you have size/mass to lose will help you lose weight. This is true without trying fancy diets that cut out macro nutrients which are essential for your body to function as you want and be well.