Papaya is a tropical fruit rich in vitamin C, potassium, and the digestive enzyme papain, making it valuable for immune support and gastrointestinal health.
AntioxidantHeartGutInflammationImmunity
Nutrition per ~140 g · 1 medium piece
Form
60kcal
Protein0.7 g
Carbs15.1 g
Fat0.4 g
Fiber2.4 g
12.8 g net carbs after fiber.
Vitamins
Vitamin C85.3 mg95%
Vitamin A1330 iu27%
Folate51.8 mcg13%
Vitamin A65.8 mcg7%
Pantothenic Acid0.27 mg5%
Vitamin B653.2 mcg3%
Niacin0.50 mg3%
Vitamin K3.6 mcg3%
Riboflavin37.8 mcg3%
Vitamin E0.42 mg3%
Thiamin32.2 mcg3%
Minerals & other
Magnesium29.4 mg7%
Copper63 mcg7%
Potassium255 mg5%
Manganese56.0 mcg2%
Calcium28 mg2%
Iron0.35 mg2%
Choline8.5 mg2%
Selenium0.84 mcg2%
Phosphorus14 mg1%
Zinc0.11 mg1%
Sodium11.2 mg0%
Saturated Fat0.11 g—
Monounsaturated Fat0.10 g—
Polyunsaturated Fat0.081 g—
Bioactives estimated
Carotenoids~8.4 mg
Inulin / Prebiotic fibre~4.2 g
Representative amounts for this food, not measured for this item. Real content varies widely by variety, ripeness and storage.
What drives the score weighted inputs
Nutrient density33.7/35Vitamins and minerals relative to calories — the single biggest driver.
Protein quality3.3/15How much protein it delivers, by absolute grams and per calorie.
Bioactives11.4/15Polyphenols, flavonoids and other beneficial plant compounds.
Fiber8.4/10Dietary fiber for gut health, satiety and steadier blood sugar.
Healthy fats5.0/10Fat quality — unsaturated against saturated, and trans-fat free.
Glycemic impact10.0/10Low sugar with a high fiber-to-carb ratio scores best.
These are the scored components, not a sum: the published score also reflects normalisation across the catalog, so the parts above will not add to 91.
MethylationAntioxidantATP / MitoBoneThyroidCollagenNeurotransmitterDetoxGlucoseHematopoiesisLipidsGut MicrobiomeMembranesClottingHPA AxisGlycolysisβ-OxidationKetogenesisNAD⁺mTORAMPKUrea CycleDopamineSerotoninSteroidogenesisVitamin D ActivationInsulin Signaling
Overview
Papaya (Carica papaya) originated in Central America and is now cultivated throughout tropical regions worldwide. This fruit is nutritionally distinctive for its high vitamin C content (61 mg per 100g, exceeding 100% of daily needs), which supports immune function and collagen synthesis critical for healthy aging. Papaya contains papain, a proteolytic enzyme that aids protein digestion and may reduce inflammation, contributing to better nutrient bioavailability and gut health. The fruit also provides carotenoids (as provitamin A) and potassium (182 mg per 100g), which support cardiovascular function and electrolyte balance—key factors in longevity. Unlike many fruits, papaya is relatively low in sugar and calories (43 kcal per 100g), making it suitable for metabolic health. The combination of digestive enzymes, antioxidants, and micronutrients positions papaya as a functional food that supports both acute nutrient intake and chronic disease prevention through improved digestion and systemic antioxidant defense.
Health benefits 5
Enhanced digestive function and protein breakdownmoderate
Papain proteolytic enzyme cleaves peptide bonds, improving protein digestion and reducing bloating while increasing amino acid bioavailability
Improved immune function and antioxidant defensestrong
High vitamin C content (61 mg/100g) supports neutrophil function, collagen synthesis, and acts as a direct free radical scavenger
Reduced systemic inflammationmoderate
Papain and chymopapain enzymes possess anti-inflammatory properties; carotenoids provide additional antioxidant protection against oxidative stress
Cardiovascular health maintenancestrong
Potassium (182 mg/100g) supports blood pressure regulation; vitamin C protects against LDL oxidation; fiber aids cholesterol metabolism
Pair with lime or lemon juice because citric acid enhances vitamin C absorption and papain enzyme activity while reducing oxidation of carotenoids
Combine with leafy greens (spinach, kale) because papaya's vitamin C dramatically increases non-heme iron bioavailability from plant sources by 3-4 fold
Eat with nuts (almonds, walnuts) because healthy fats enhance absorption of fat-soluble carotenoids while papain aids protein digestion of the nuts
Mix with ginger because both contain proteolytic enzymes and anti-inflammatory compounds that synergistically reduce bloating and improve digestion
In the kitchen
Select papayas with slight give when gently squeezed and a fragrant aroma; avoid hard or mushy fruit. Ripe papayas have higher enzyme activity and sweeter flavor
Consume fresh papaya within 1-2 days of ripening, or refrigerate up to 5 days. Freeze cubed papaya for smoothies; freezing preserves papain activity
Eat papaya seeds along with flesh—they contain additional proteolytic enzymes and may support digestive health; they have a peppery flavor
Consume papaya between meals or 30+ minutes before protein-rich meals to maximize papain's digestive enzyme benefit without competition from stomach acid
Choose ripe papayas over green for maximum enzyme activity and carotenoid content; the fruit's color intensity indicates higher provitamin A concentration
When to eat it midday
Midday consumption (between breakfast and lunch, or as a midday snack) allows papain enzymes to work optimally on upcoming protein-rich meals while supporting digestive capacity when enzyme secretion is peak. Morning consumption supports immune function via vitamin C; evening consumption is acceptable but may provide less digestive benefit if no protein meal follows.
Fasting-compatible
Best avoided
Immediately before bed—high natural sugar content may spike glucose and interfere with sleep quality
Papaya is compatible with fasting periods due to low calorie density (43 kcal/100g) and low glycemic impact; however, the presence of natural sugars (10.82g carbs/100g) means it technically breaks a strict fast