Asparagus

Nutrition per ~85 g · ¾ cup chopped

1.8 g net carbs after fiber.

Vitamins

Minerals & other

Bioactives estimated

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

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 96.

What it feeds primary sources only

Systems

Pathways

Overview

Asparagus (Asparagus officinalis) has been cultivated for over 2,500 years, originating in the eastern Mediterranean and western Asia. Its unique nutritional profile makes it a longevity-focused superfood: each 100g serving provides 149 mcg of folate (supporting methylation and DNA repair), 50.6 mcg of vitamin K (critical for bone mineralization and vascular health), and high levels of glutathione—a tripeptide antioxidant that declines with age and is rarely bioavailable from other foods. Asparagus contains inulin, a prebiotic fiber that nourishes beneficial gut bacteria, and asparagine, an amino acid involved in neural function and cellular metabolism. The vegetable's polyphenols and saponins provide anti-inflammatory effects. Spring asparagus varieties show the highest nutrient density. Research indicates asparagus consumption is associated with improved vascular function, enhanced liver detoxification capacity, and better metabolic flexibility. Its combination of folate and B vitamins supports homocysteine metabolism, a key marker in cardiovascular aging. The high vitamin K content supports both bone density and arterial calcification prevention—two critical longevity factors often overlooked.

Health benefits 5

Pairs with

• Pair with olive oil because fat enhances absorption of fat-soluble vitamin K and increases glutathione retention; cooking at moderate temperatures (steaming) preserves these compounds better than high-heat sautéing.
• Pair with lemon juice or citrus because vitamin C enhances folate stability and bioavailability while supporting iron absorption if consumed with any iron-containing foods.
• Pair with garlic or onions because organosulfur compounds (allicin, quercetin) synergize with glutathione and saponins to amplify anti-inflammatory and detoxification pathways.
• Pair with eggs because choline in egg yolks enhances folate metabolism and supports the one-carbon cycle for optimal methylation capacity.
• Pair with fermented foods (kimchi, sauerkraut, tempeh) because beneficial bacteria improve the bioavailability of folate and support conversion of plant compounds into bioactive metabolites.

In the kitchen

• Store fresh asparagus upright in 1-2 inches of water in the refrigerator, covered loosely with plastic. This method maintains hydration and extends shelf life to 7-10 days, preserving inulin and glutathione content better than horizontal storage.
• Lightly steam asparagus for 4-6 minutes (until tender-crisp) rather than boiling or roasting at high heat. Steaming preserves glutathione and water-soluble B vitamins while maintaining structural integrity for optimal nutrient delivery.
• Select firm, bright-green spears with closed tips and minimal white (woody) base. Thinner spears tend to have higher folate concentration relative to fiber, while thicker spears offer more glutathione per serving.
• Consume the entire spear including the tender base after blanching and cooling; discard only the woody 1-2 inches. The lower portions contain concentrated phytonutrients.
• Prioritize spring asparagus (March-May in Northern Hemisphere) as studies show 15-20% higher glutathione and polyphenol content compared to greenhouse-grown winter varieties.

When to eat it anytime

Asparagus has no circadian constraints and benefits from consistent daily or near-daily consumption (3-5 servings weekly) to maintain steady folate repletion and support continuous glutathione recycling. The prebiotic inulin is processed continuously by the microbiome, making morning or midday consumption optimal for sustained SCFA production throughout the day.

Breaks a fast

During fasting states, asparagus can be consumed as it contains minimal calories (~22 per 100g) and will not significantly break a fast, though pairing with fat or protein maximizes nutrient absorption.