Prunes are dried plums concentrated in natural sugars, fiber, and polyphenols, delivering exceptional amounts of potassium and iron in a small serving.
GutHeartBoneBrainLongevity
Nutrition per ~40 g · 4 prunes
Form
136kcal
Protein1.5 g
Carbs35.6 g
Fat0.3 g
Fiber0 g
Vitamins
Vitamin B60.30 mg18%
Vitamin A705 iu14%
Niacin1.2 mg7%
Riboflavin66 mcg5%
Thiamin47.2 mcg4%
Vitamin A35.2 mcg4%
Pantothenic Acid0.17 mg3%
Folate0.80 mcg0%
Minerals & other
Copper0.24 mg27%
Potassium423 mg9%
Iron1.4 mg8%
Magnesium25.6 mg6%
Manganese0.12 mg5%
Phosphorus44.8 mg4%
Zinc0.30 mg3%
Calcium28.8 mg2%
Sodium2 mg0%
Saturated Fat0.024 g—
Monounsaturated Fat0.19 g—
Polyunsaturated Fat0.064 g—
Bioactives estimated
Chlorogenic acid~16 mg
Polyphenols~60 mg
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 density15.5/35Vitamins and minerals relative to calories — the single biggest driver.
Protein quality4.7/15How much protein it delivers, by absolute grams and per calorie.
Bioactives11.8/15Polyphenols, flavonoids and other beneficial plant compounds.
Fiber5.0/10Dietary fiber for gut health, satiety and steadier blood sugar.
Healthy fats5.0/10Fat quality — unsaturated against saturated, and trans-fat free.
Glycemic impact8.5/10Low 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 62.
MethylationATP / MitoBoneCollagenNeurotransmitterDetoxGlucoseHematopoiesisLipidsClottingHPA AxisGlycolysisβ-OxidationKetogenesisNAD⁺mTORAMPKUrea CycleDopamineSerotoninSteroidogenesisVitamin D ActivationInsulin Signaling
Overview
Prunes are the dried form of European plums (Prunus domestica) and have been consumed for thousands of years across Mediterranean and Middle Eastern cultures. Unlike fresh plums, the drying process concentrates nutrients and bioactive compounds, making prunes remarkably nutrient-dense. Per 100g, prunes provide over 1000mg of potassium—critical for cardiovascular health and blood pressure regulation—along with 3.5mg of iron and substantial polyphenolic compounds including neochlorogenic acid and chlorogenic acid. The high sorbitol and fiber content (despite the USDA listing showing 0g, prunes contain approximately 7g per 100g when accounting for soluble fiber) makes them particularly effective for digestive health and natural laxative effects. Prunes are also rich in boron, a mineral linked to bone health and cognitive function. For longevity-focused nutrition, prunes serve dual purposes: their antioxidant profile supports cellular protection and inflammation reduction, while their mineral density addresses common micronutrient gaps. The natural sugars provide quick energy without blood sugar spikes when consumed in appropriate portions due to their low glycemic index relative to calorie density.
Health benefits 5
Supports bone health and densitymoderate
Prunes contain high levels of boron, polyphenols, and potassium which stimulate osteoblast activity, reduce bone turnover markers, and support acid-base balance critical for bone mineralization
Promotes digestive regularity and gut healthstrong
Sorbitol and soluble fiber in prunes increase stool bulk and promote beneficial bacteria growth while sorbitol acts as a natural osmotic laxative without harsh stimulation
Reduces cardiovascular disease riskstrong
High potassium content supports healthy blood pressure, while polyphenols reduce oxidative stress and inflammation in vascular tissue; chlorogenic acid improves endothelial function
Enhances iron absorption and addresses anemia riskmoderate
Prunes provide highly bioavailable iron (3.5mg per 100g) along with vitamin C and polyphenols that enhance non-heme iron absorption in the intestine
Supports cognitive function and neuroprotectionemerging
Polyphenols and boron in prunes reduce neuroinflammation and support acetylcholine synthesis, while boron enhances neural signaling and cognitive performance in aging populations
Pairs with
Pair with yogurt because the probiotics enhance polyphenol metabolism and the fat improves absorption of fat-soluble bioactive compounds while reducing glycemic impact
Combine with almonds or walnuts because the vitamin E and healthy fats provide synergistic antioxidant protection and slow glucose absorption from prune sugars
Eat with leafy greens like spinach because vitamin K in greens synergizes with prune minerals (boron, magnesium, potassium) for optimal bone metabolism
Pair with green tea because both contain polyphenols that work synergistically to enhance antioxidant capacity and support cardiovascular health
In the kitchen
Store prunes in an airtight container in a cool, dark place or refrigerator to preserve polyphenol content; properly stored prunes maintain potency for 6-12 months
Soak prunes in water for 2-4 hours before consumption to rehydrate and create a prebiotic-rich 'prune water' that supports gut microbiota while making the fruit easier to digest
Limit portions to 30-40g (3-4 prunes) per day to avoid excessive fructose intake and digestive distress, despite their health benefits; this provides ~100 calories and significant micronutrients
Choose unsweetened, unsulfured prunes when possible, as processing adds unnecessary sugar and sulfites may trigger sensitivities in some individuals
Consume prunes with meals rather than alone to moderate blood sugar impact and maximize mineral absorption through enhanced gastric acid production
When to eat it midday
Midday consumption provides sustained energy and mineral replenishment without interfering with evening digestion or sleep quality; the sorbitol effect is most tolerable during daytime hours
Breaks a fast
Best avoided
late evening within 3 hours of sleep due to potential laxative effects
on empty stomach for sensitive individuals as sorbitol can cause cramping
While prunes contain natural sugars that technically break a fast, their mineral density and polyphenols provide genuine health benefits if consumed early in a feeding window