Cucumber

Variants (2)

Nutrition · per ~85 g serving · ≈ ½ cucumber

Score · 70/100

Overview

Cucumbers (Cucumis sativus) originated in South Asia and are now cultivated globally as a staple low-calorie vegetable. Their exceptional water content (95%) combined with bioactive compounds like flavonoids, lignans, and triterpenes supports hydration and anti-inflammatory processes critical for longevity. The skin contains most of the vitamin K (24 mcg per 100g), essential for bone mineralization and cardiovascular health, while the mineral profile—particularly potassium (169.6 mg/100g)—supports electrolyte balance and blood pressure regulation. Cucumbers are exceptionally low in caloric density while providing satiety through volume, making them valuable for metabolic health and weight management. The presence of quercetin and other polyphenols contributes antioxidant activity that may reduce chronic disease risk. As a negligible source of carbohydrates and fat, cucumbers fit seamlessly into diverse dietary patterns and support stable blood glucose levels—a key marker of healthy aging.

Health Benefits (5)

• Supports hydration and electrolyte balance

  strong
  High water content (95%) combined with potassium facilitates cellular hydration and helps maintain proper fluid distribution and cardiovascular function
• Promotes bone health and cardiovascular function

  strong
  Vitamin K (24 mcg/100g) activates osteocalcin for bone mineralization and matrix Gla-protein for vascular elasticity
• Reduces inflammation and oxidative stress

  moderate
  Flavonoids (quercetin, apigenin) and lignans act as antioxidants, scavenging free radicals and modulating inflammatory pathways
• Supports healthy body weight and metabolic flexibility

  moderate
  Extreme caloric dilution (16 kcal/100g) with high volume promotes satiety while maintaining stable blood glucose and insulin sensitivity
• May support gut microbiota diversity

  emerging
  Water-soluble polyphenols, particularly in the skin, act as prebiotics, selectively promoting beneficial bacterial growth

Food Pairings

• ·Pair with olive oil because fat-soluble vitamin K requires dietary lipids for optimal absorption and transport
• ·Combine with tomatoes because lycopene + quercetin synergize antioxidant effects and enhance anti-inflammatory signaling
• ·Eat with fermented foods (yogurt, kimchi) because polyphenols in cucumber skin feed beneficial probiotics, enhancing microbiota composition
• ·Pair with leafy greens because both are vitamin K sources; combined consumption maximizes phylloquinone intake for bone and vascular health

Practical Tips

• ·Consume skin on: the peel contains 3-5x more vitamin K and polyphenols than the flesh; organic cucumbers are preferred to minimize pesticide residue
• ·Store unwashed in the refrigerator crisper drawer for up to 7 days; avoid storing near ethylene-producing fruits (apples, avocados) which accelerate softening
• ·Choose firm, dark-green cucumbers with minimal blemishes; softer specimens indicate age and nutrient loss
• ·Use in salads or gazpacho raw to preserve heat-sensitive flavonoids; if cooked, use minimal water to prevent mineral leaching
• ·Select seedless or English varieties if digestive sensitivity is present; seeds contain additional insoluble fiber that may cause bloating in sensitive individuals

Optimal Timing

Cucumbers are naturally low in antinutrients and do not interact with circadian biology; inclusion at any meal or as snacks supports consistent hydration without metabolic disruption

Cucumber is compatible with fasting protocols due to negligible caloric and macronutrient content; the water and electrolytes may support fasting tolerance