Pumpkin
Food · Vegetable · Food, Typed Supps
Pumpkin's bright orange color is basically edible sunshine for your eyes and immune system.
Stage by stage
- Chewing Begins Digestion (Mouth): Chewing ruptures pumpkin's cell walls, beginning to release the beta-carotene bound up in its fibrous orange flesh.
- Acid Breaks It Down (Stomach): Stomach acid and enzymes continue breaking down the plant matrix, freeing more carotenoids for absorption further along the gut.
- Carotenoids Absorbed (Small Intestine): In the small intestine, dietary fat helps form micelles that carry beta-carotene into intestinal cells, where some of it is converted into retinal (vitamin A).
- Vitamin A Stored (Liver): The liver stores the resulting vitamin A, releasing it as needed to support vision, immune function, and skin health.
Timing
Pair pumpkin with a source of fat, such as olive oil, nuts, or dairy, to meaningfully boost absorption of its fat-soluble beta-carotene.
Time to effect
- Hours to weeks: Beta-carotene begins appearing in the bloodstream within hours of a fat-containing meal, but replenishing the body's vitamin A stores and supporting skin, immune, and eye health takes weeks of consistent intake.
Allergens
None of the fourteen major allergens. Derived from what this food is, not from a product label.
Eating patterns
Fits: Vegan, Vegetarian, Pescatarian, Halal, Kosher, Low-FODMAP, Gluten-free. Depends on the product: Keto.
In season
September to December in the northern hemisphere, March to June in the southern.
Satiety
The satiety index is measured on 240 kcal servings. At 27 kcal per 100 g that is 896 g of this, which is not a serving anyone eats — so the index has nothing to say about it.
Environmental footprint
0.5 kg CO2e and 108 litres of freshwater per kg, matched to "Other vegetables" in Poore & Nemecek (2018), Science 360.
Cost band
Cheap — roughly £1.4 per kg, as a band midpoint rather than a price.
Key nutrients
Nutrition per 100g
- Calories: 26.8
- Protein: 0.7g
- Carbohydrate: 5.2g
- of which sugars: 4.3g
- Fat: 0.1g
- of which saturated: 0g
- Fibre: 1.6g
- Sodium: 0mg
Food vs. supplement
Whole pumpkin delivers beta-carotene alongside fiber and potassium with no known toxicity risk, while high-dose isolated beta-carotene supplements have been linked to increased lung cancer risk in smokers in randomized clinical trials.
Kitchen tip
Roast, steam, or puree pumpkin with a bit of oil or butter — heat and fat both help release and absorb its beta-carotene far better than eating it raw.
Common myth
"Pumpkin is mostly water and pie filling — it doesn't have much real nutritional value." In reality: Raw pumpkin supplies roughly 500 mcg RAE of vitamin A per 100 g (about half the adult Daily Value) from beta-carotene, plus meaningful potassium and fiber, for only about 26 calories — making it one of the more nutrient-dense, low-calorie vegetables available.
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