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Orange
Fruit · Citrus

Orange

94Health
Score
A+

Oranges are citrus fruits rich in vitamin C and fiber, providing exceptional immune support and digestive health benefits with minimal calories.

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Why Orange scores 94

Nutrient density31
Protein quality6
Fiber content10
Healthy fats5
Bioactive compounds14
Glycemic impact10
Top nutrients
Vitamin C66.7Folate7.8Pantothenic Acid5Potassium3.8Biotin3.3

Nutrition

per_100g

49
Calories
0.9g
Protein
12.5g
Carbs
0.2g
Fat
2.2g
Fiber

Health benefits

Enhanced immune function and reduced infection risk

strong evidence

High vitamin C content (59mg/100g) supports neutrophil and T-cell function, accelerates antibody production, and reduces duration of respiratory infections

Cardiovascular disease risk reduction

strong evidence

Flavonoids (especially hesperidin) improve endothelial function, reduce blood pressure, and lower LDL oxidation; potassium supports healthy blood pressure regulation

Improved glucose metabolism and insulin sensitivity

moderate evidence

Soluble fiber delays gastric emptying and glucose absorption; flavonoids enhance insulin signaling and reduce insulin resistance markers

Anti-inflammatory response and reduced oxidative stress

moderate evidence

Vitamin C and flavonoids neutralize free radicals; limonoids and hesperidin suppress pro-inflammatory cytokine production

Enhanced collagen synthesis and skin health

strong evidence

Vitamin C is an essential cofactor for prolyl and lysyl hydroxylase enzymes required for collagen cross-linking and structural integrity

Pairs well with

  • ·Pair with almonds or walnuts because vitamin C enhances non-heme iron absorption from nuts' phytates and supports polyphenol antioxidant synergy
  • ·Combine with leafy greens (spinach, kale) because vitamin C dramatically increases bioavailability of plant-based iron and enhances polyphenol absorption
  • ·Add to Greek yogurt or kefir because vitamin C supports beneficial gut bacteria colonization and probiotics enhance flavonoid metabolism
  • ·Pair with olive oil-based meals because fat-soluble carotenoid absorption from accompanying foods is enhanced, and vitamin C reduces oxidative stress from dietary fat

Practical tips

  • ·Best timing: morning
  • ·Choose firm, heavy oranges with thin skin indicating juice content; avoid soft spots or mold. Store at room temperature for 3-4 days or refrigerate for up to 2 weeks to extend shelf life
  • ·Consume whole oranges rather than juice to retain the 2.2g fiber per 100g, which moderates glucose absorption and enhances satiety
  • ·Eat the white pith beneath the peel—it contains 90% of the fruit's hesperidin flavonoid content and contributes significantly to cardiovascular benefits
  • ·Consume fresh or within 24 hours of cutting to maximize vitamin C retention; heat and oxidation reduce ascorbic acid by 30-50% within 2-3 hours
  • ·Select blood oranges or Seville oranges when available as they contain 2-3x higher flavonoid content than standard sweet varieties

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