Orange — 47 kcal

Oranges have been the world's go-to source of vitamin C since Portuguese traders shipped them across oceans to prevent scurvy. At 47 kcal per 100 g, they deliver 11.8 g of carbohydrates, 0.9 g of protein, and a negligible 0.1 g of fat, with 86.8 g of water making them one of the most hydrating fruits available. The 9.4 g of natural sugar is tempered by 2.4 g of fiber — both soluble and insoluble — which slows sugar absorption and keeps you feeling full longer than a glass of juice ever could. That fiber distinction matters: eating a whole orange produces a fraction of the insulin spike that drinking orange juice creates.

What's Inside

Vitamin C dominates at 53.2 mg per 100 g — roughly 59 % of the daily value in a single medium fruit. Beyond its famous immune role, vitamin C is a cofactor in collagen synthesis, neurotransmitter production, and iron absorption from plant foods. Thiamin (0.087 mg) keeps the nervous system firing properly, while folate (30 mcg, about 8 % DV) is essential for DNA synthesis and particularly critical during pregnancy. Potassium (181 mg) manages blood pressure by counterbalancing dietary sodium. Oranges also contain hesperidin, a flavonoid concentrated in the white pith that supports vascular flexibility and has shown anti-inflammatory effects in clinical studies — so scraping every bit of pith off is actually a nutritional mistake.

Getting It Right

Supreme oranges by cutting off the top and bottom, standing the fruit on a flat end, and slicing downward to remove peel and pith in strips — then cut between the membranes for perfect, juice-bursting segments. Zest before peeling: orange zest packs more aromatic oils and vitamin C per gram than the flesh itself, and it transforms salad dressings, marinades, and baked goods. Store whole oranges in the fridge for up to three weeks; once cut, consume within two days to preserve vitamin C, which degrades rapidly when exposed to air and light. Pair orange segments with fennel and olive oil for a Sicilian-inspired salad, or toss them into a stir-fry sauce with soy and ginger for a bright, tangy finish.