A medium-sized fruit of around 100g provides just 52 calories, with 4 grams of fibre, 0.3g of protein, 13.8 grams of carbohydrate (of which 10.4g are fructose, glucose and sucrose sugars) and 0.2 grams of fat. How is the calorie count so low for such a satisfying snack? These fruits are actually 75-80% water.

Despite their high proportion of sugar, apples have a low glycaemic index of between 29-44 depending on the variety. This is because they are packed with polyphenols and fibre (around 17% of the average adult's fibre RDA in fact). Much of this fibre also comes from gut-loving pectin, which helps to feed your 'good' bacteria and maintain a healthy digestion. You will also get 7% of your vitamin C needs, 3% of your potassium and 1% each of your daily Vitamin A and magnesium needs, not to mention Quercetin, Catechin and Chlorogenic acids, which are all powerful antioxidants.

Nothing beats the first bite into a fresh, crisp apple, but these delicate fruits can spoil in just 3–5 days if they aren't stored correctly. Firstly, choose a variety that will last if you aren't planning to eat your fruit quickly. Granny Smith varieties have a thicker skin and tart flavour and last for longer than, say, a Golden Delicious, which is sweeter and has a thinner skin.

Don't store apples near bananas in a bowl, or they will spoil faster (banana skins contain ethylene which speeds up the ripening process.) In the fridge, keep them away from potatoes and onions, as well as any strong-smelling foods, as the fruits will absorb the aromas. Also, don't stack them, as this can lead to brown spots and damaged skins.