Guava

Nutrition · per ~140 g serving · ≈ 1 medium piece

Score · 94/100

Overview

Native to Central America, guava has been cultivated for centuries and is now widely grown across tropical and subtropical regions. Despite its modest calorie content (68 kcal/100g), guava delivers exceptional nutritional density, particularly in vitamin C—providing over 250% of the daily reference intake per serving. The fruit's high soluble fiber content supports blood sugar regulation and promotes satiety, while its potassium concentration (417mg/100g) contributes to cardiovascular health and electrolyte balance. Guava contains bioactive compounds including lycopene, quercetin, and catechin—polyphenols with documented antioxidant and anti-inflammatory properties. The edible seeds are rich in omega-3 and omega-6 polyunsaturated fatty acids. Traditional medicine has long valued guava for digestive support, and modern research supports its role in supporting glycemic control, lipid profiles, and systemic inflammation markers. The combination of high fiber, low glycemic index, and polyphenol diversity positions guava as a valuable longevity-supporting fruit, particularly for metabolic health and antioxidant defense.

Health Benefits (5)

• Enhanced immune function and collagen synthesis

  strong
  Exceptional vitamin C content (228mg/100g) supports neutrophil function, antibody production, and cross-linking of collagen in connective tissue
• Improved glycemic control and insulin sensitivity

  moderate
  High fiber content (5.4g/100g) slows glucose absorption; polyphenols like quercetin enhance insulin signaling pathways
• Cardiovascular health and blood pressure regulation

  moderate
  Potassium (417mg/100g) supports vasodilation and sodium-potassium pump function; polyphenols reduce endothelial dysfunction
• Antioxidant defense and reduced oxidative stress

  moderate
  Lycopene, quercetin, and catechin scavenge free radicals and upregulate endogenous antioxidant enzymes
• Digestive health and prebiotic support

  moderate
  Soluble fiber (pectin) feeds beneficial gut bacteria; traditional use supported by improved stool consistency in clinical observation

Food Pairings

• ·Pair with black pepper because piperine enhances absorption of polyphenols like lycopene
• ·Combine with healthy fats (avocado, nuts) because lipophilic antioxidants including lycopene require fat for absorption
• ·Pair with fermented foods (yogurt, kefir) because fiber acts prebiotic to support probiotic colonization and short-chain fatty acid production
• ·Combine with leafy greens because guava's vitamin C enhances non-heme iron bioavailability from plant sources

Practical Tips

• ·Select guavas that yield slightly to gentle pressure and have a sweet aroma; firm fruits indicate underdevelopment
• ·Consume skin and seeds for maximum fiber and polyphenol intake—they're edible and nutrient-dense
• ·Store ripe guavas in a cool place for 2-3 days or refrigerate for up to 10 days; ethylene sensitivity means separate from ethylene-producing fruits
• ·Blend whole guava (skin intact) into smoothies rather than juicing to retain fiber content and prevent nutrient loss

Optimal Timing

Guava's low glycemic index, high fiber, and modest calories make it suitable across the day; vitamin C absorption is independent of meal timing

Best consumed with other foods to slow carbohydrate absorption and enhance polyphenol absorption via fat co-ingestion