Orange

The orange is the 50 Man Foods' everyday fruit: a day's vitamin C, a useful dose of potassium and folate, and a sugar that arrives with water and minerals rather than alone. Fresh-squeezed juice with a pinch of salt is the recovery drink this diet uses in place of anything from a bottle.

It is also the fruit that pairs with the fats — an orange with cheese, juice with eggs — that makes a breakfast without bread feel complete.

  • Daily
  • 1 recipe
  • Fruit
  • Updated Sep 2026

What it supplies

Nutrient · per 100 g, raw (about two-thirds of a medium orange) Amount % DV Relative amount
Vitamin C 53 mg 59%
Potassium 181 mg 4%
Folate 30 mcg 8%
Calcium 40 mg 3%
Fibre 2.4 g 9%
Sugars 9.4 g 0%

Source: USDA FoodData Central.Percent Daily Values are based on adult reference intakes. The bars stop at 100%; the numbers do not.

Why it works

Vitamin C is used up by stress, smoking and training; it is needed to make carnitine, which carries fat into mitochondria, and collagen, which holds everything together. Oranges supply it year-round at low cost, with potassium and a little calcium alongside.

Orange sugar is about half fructose, half glucose — the ratio that refills liver glycogen most efficiently after exercise — which is why juice with a pinch of salt is a better recovery drink than a sports drink built on maltodextrin and dye.

How much, how often

  • 1–3 oranges

    Daily

    Vitamin C several times over, with potassium and folate.

  • Juice + a pinch of salt

    After training

    Half fructose, half glucose refills liver glycogen; the salt replaces what you sweated.

How to buy and prepare it

Heavy for its size, firm, with fine-textured skin; colour is a poor guide because oranges are often gassed to turn orange. Navels are seedless and easy to peel; Valencias are the juicing orange; blood oranges carry anthocyanins and a berry flavour in late winter.

For juice, buy Valencias by the bag; they are cheaper and juicier.

Peel and eat, pith included where you can stand it. Juice with a hand press, drink within the hour, and add a pinch of sea salt after training. Zest goes into custard; the peel can be candied or simmered into syrup.

A week at room temperature, three weeks refrigerated. Fresh juice loses vitamin C steadily and should be drunk the same day; bottled juice has been heat-treated and stripped of its pith flavonoids.

Recipes that use it

In these guides

Questions

Juice or whole fruit?
Whole fruit as the default, for the fibre and pith. Fresh juice has a specific job: fast sugar, potassium and vitamin C after training or when appetite is low. Bottled juice from concentrate is neither.
How many oranges a day?
One to three, or a glass of fresh juice, covers vitamin C several times over. There is no upper limit worth naming; excess vitamin C leaves in the urine.
Is orange juice bad for teeth?
The acid softens enamel briefly. Drink it with food, rinse with water afterward, and do not brush for half an hour.