#85 of 138 in Vegetable · scored 88/100
Also known as string beans, snap beans, french beans
Green beans are a low-calorie cruciferous vegetable rich in vitamin K, fiber, and manganese, supporting bone health and metabolic function with minimal glycemic impact.
4.0 g net carbs after fiber.
Representative amounts for this food, not measured for this item. Real content varies widely by variety, ripeness and storage.
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 88.
Green beans (Phaseolus vulgaris) are the immature pods of the common bean plant, domesticated in Mesoamerica and now cultivated globally. They represent an optimal nutrient-density food for longevity due to their exceptional micronutrient profile relative to caloric content. At just 35 kcal per 100g, green beans deliver substantial vitamin K (48 mcg, ~40% of daily needs), essential for bone mineralization and vascular health. The 3.2g fiber per 100g supports gut microbiota diversity and glycemic stability—critical for metabolic aging. Green beans contain manganese, a cofactor for superoxide dismutase (SOD), a primary anteroogenic enzyme combating oxidative stress. The folate content (47 mcg) contributes to one-carbon metabolism and homocysteine regulation, both associated with cardiovascular longevity. Phenolic compounds in green beans, including chlorogenic acid and quercetin, have demonstrated anti-inflammatory properties in observational studies. Their low glycemic load and high water content (88%) make them ideal for sustained satiety without metabolic stress. Regular consumption correlates with improved venous elasticity and reduced arterial stiffness in aging populations.
Vitamin K acts as a cofactor for gamma-carboxylase, enabling bone protein mineralization and improving bone matrix quality independent of calcium intake
Vitamin K activates matrix Gla protein (MGP), which inhibits vascular calcification and maintains arterial elasticity critical for healthy aging
Manganese supports superoxide dismutase (SOD) activity; chlorogenic acid and quercetin provide direct free radical scavenging, reducing oxidative stress markers
Soluble fiber slows gastric emptying and glucose absorption, while insoluble fiber promotes butyrate-producing bacteria, improving insulin sensitivity and satiety hormones
Folate participates in one-carbon metabolism converting homocysteine to methionine; elevated homocysteine is an independent cardiovascular risk factor in aging
Green beans' fiber and resistant starch optimize nutrient partitioning during peak digestive capacity; lunch timing leverages post-prandial glucose control benefits and satiety signaling through PYY and GLP-1 release
Breaks a fast
Best consumed as part of mixed macronutrient meals with protein and fat to enhance vitamin K absorption and stabilize postprandial glucose response