Nutrition per ~40 g · 1 medium piece
120kcal
Protein1.3 g
Carbs32.0 g
Fat0.1 g
Fiber1.3 g
30.7 g net carbs after fiber.
Vitamins
Vitamin B60.13 mg8%
Riboflavin76.4 mcg6%
Niacin0.46 mg3%
Vitamin C1.3 mg1%
Vitamin K1.4 mcg1%
Vitamin E48 mcg0%
Folate1.2 mcg0%
Thiamin3.2 mcg0%
Minerals & other
Copper91.2 mcg10%
Potassium298 mg6%
Manganese90.4 mcg4%
Magnesium14 mg3%
Phosphorus40.4 mg3%
Iron0.39 mg2%
Calcium25.6 mg2%
Zinc0.15 mg1%
Choline4.4 mg1%
Selenium0.28 mcg1%
Sodium9.6 mg0%
Monounsaturated Fat0.0056 g—
Polyunsaturated Fat0.023 g—
Saturated Fat0.026 g—
Omega615.2 mcg—
Bioactives estimated
Resveratrol~0.4 mg
Catechins (EGCG)~20 mg
Inulin / Prebiotic fibre~1.2 g
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 density8.9/35Vitamins and minerals relative to calories — the single biggest driver.
Protein quality4.3/15How much protein it delivers, by absolute grams and per calorie.
Bioactives12.3/15Polyphenols, 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 55.
What it feeds primary sources only
Systems
ImmuneBrainSleepCardioGutEnergyMuscleBonesHormonesSkinStressLiverKidneyEyesReproductiveJoints
Pathways
MethylationAntioxidantATP / MitoBoneThyroidCollagenNeurotransmitterDetoxGlucoseHematopoiesisLipidsGut MicrobiomeMembranesClottingHPA AxisGlycolysisβ-OxidationNAD⁺mTORAMPKUrea CycleDopamineSerotoninVitamin D ActivationInsulin Signaling
Overview
Raisins are produced by drying fresh grapes, a process that concentrates their nutritional density and extends shelf stability. Originating in the Mediterranean and Central Asia, raisins have been a nutritional staple for millennia. Their unique value for longevity lies in their polyphenol content—particularly resveratrol and proanthocyanidins—which persist through the drying process and exert antioxidant and anti-inflammatory effects. With 3.3g fiber per 100g and substantial potassium (746mg), raisins support digestive regularity and cardiovascular function. The natural fruit sugars (glucose and fructose) are rapidly absorbed, making raisins an efficient carbohydrate source, though portion control is important due to caloric density. Unlike many dried fruits, raisins lack added sugars in whole-food form. Their boron content supports bone health, and emerging research suggests certain compounds in raisins may enhance satiety signals, potentially aiding weight management when consumed mindfully. The concentration of bioactive compounds per gram makes raisins a nutrient-dense addition to longevity-focused diets, particularly for cardiovascular protection and metabolic health.
Health benefits 5
Improved cardiovascular function and blood pressure regulationmoderate
Polyphenols and potassium work synergistically to reduce vascular inflammation, improve endothelial function, and support healthy blood pressure through increased nitric oxide availability and reduced arterial stiffness
Enhanced digestive regularity and gut healthmoderate
Insoluble fiber content stimulates peristalsis and increases stool bulk, while polyphenols act as prebiotics, feeding beneficial bacteria and supporting microbial diversity
Antioxidant and anti-inflammatory protectionstrong
Resveratrol, catechins, and proanthocyanidins neutralize free radicals and suppress inflammatory pathways (NF-κB signaling), reducing oxidative stress-related cellular damage
Improved bone mineral density and skeletal healthmoderate
Boron content enhances calcium absorption and magnesium bioavailability, while polyphenols stimulate osteoblast activity and inhibit osteoclast-mediated bone resorption
Enhanced satiety and potential metabolic supportemerging
Soluble fiber and natural sugars trigger GLP-1 and peptide YY secretion, promoting fullness signals and potentially improving glucose homeostasis when consumed with protein or fat
Pairs with
- Pair with almonds or walnuts because the fat slows raisin sugar absorption, reducing glycemic impact while enhancing polyphenol absorption through lipid-mediated transport
- Combine with Greek yogurt or cottage cheese because protein synergizes with raisin carbohydrates to stabilize blood sugar, improve amino acid absorption, and enhance satiety
- Mix with oatmeal because the soluble oat beta-glucans bind with raisin polyphenols, enhancing cholesterol reduction and creating a sustained energy release
- Pair with cinnamon because cinnamaldehyde enhances insulin sensitivity and works additively with raisin polyphenols to improve glucose regulation
In the kitchen
- Store raisins in an airtight container in a cool, dark place or refrigerator to preserve polyphenol content and prevent oxidation; avoid direct sunlight which degrades bioactive compounds
- Soak raisins in water for 30 minutes before eating to rehydrate them and increase bioavailability of polyphenols, or consume with beverages to enhance absorption
- Measure portions using a small handful (about 40g) rather than eating directly from the bag to maintain awareness of caloric intake; raisins are energy-dense at 301 kcal/100g
- Choose organic, unsulfited raisins when possible to minimize processing additives, though sulfites themselves are safe; avoid varieties with added oils or sugars
- Consume raisins with meals containing fat or protein rather than alone to moderate blood sugar response and improve satiety, particularly beneficial for metabolic health
When to eat it post workout
Raisins' concentrated natural sugars and carbohydrates efficiently replenish muscle glycogen post-exercise, while their potassium supports electrolyte rebalancing and recovery; polyphenols enhance adaptation signaling
Breaks a fast
Best avoided
- late evening in large quantities
While raisins can be enjoyed anytime as part of a balanced meal, they are particularly valuable post-workout. Avoid large quantities before sleep due to sugar content, which may elevate nighttime glucose. Small portions (1-2 tablespoons) are compatible with intermittent fasting protocols if breaking a fast with whole foods.