Mustard greens are a nutrient-dense leafy cruciferous vegetable exceptionally high in vitamin K, vitamin C, and potassium, providing powerful antioxidant and anti-inflammatory benefits with minimal caloric density.
BoneHeartImmunityLiverGutLongevity
Nutrition per ~85 g · ¾ cup chopped
Form
23kcal
Protein2.4 g
Carbs4.0 g
Fat0.4 g
Fiber2.7 g
1.2 g net carbs after fiber.
Vitamins
Vitamin K219 mcg182%
Vitamin C59.5 mg66%
Vitamin A2570 iu51%
Vitamin A128 mcg14%
Vitamin E1.7 mg11%
Vitamin B60.15 mg9%
Riboflavin93.5 mcg7%
Thiamin68 mcg6%
Niacin0.68 mg4%
Pantothenic Acid0.18 mg4%
Folate10.2 mcg3%
Minerals & other
Copper0.14 mg16%
Iron1.4 mg8%
Calcium97.8 mg8%
Potassium326 mg7%
Magnesium27.2 mg6%
Phosphorus49.3 mg4%
Zinc0.21 mg2%
Selenium0.77 mcg1%
Sodium17 mg1%
Choline0.42 mg0%
Saturated Fat0.0085 g—
Monounsaturated Fat0.078 g—
Polyunsaturated Fat0.032 g—
Bioactives estimated
Sulforaphane~43 mg
Glucosinolates~85 mg
Inulin / Prebiotic fibre~2.5 g
Polyphenols~128 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 density35.0/35Vitamins and minerals relative to calories — the single biggest driver.
Protein quality12.0/15How much protein it delivers, by absolute grams and per calorie.
Bioactives13.0/15Polyphenols, flavonoids and other beneficial plant compounds.
Fiber10.0/10Dietary fiber for gut health, satiety and steadier blood sugar.
Healthy fats5.0/10Fat quality — unsaturated against saturated, and trans-fat free.
Glycemic impact10.0/10Low 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 97.
MethylationAntioxidantATP / MitoBoneThyroidCollagenNeurotransmitterDetoxGlucoseHematopoiesisLipidsGut MicrobiomeMembranesClottingHPA AxisGlycolysisβ-OxidationKetogenesisNAD⁺mTORAMPKUrea CycleDopamineSerotoninSteroidogenesisVitamin D ActivationInsulin Signaling
Overview
Mustard greens (Brassica juncea) originated in the Himalayan region and have been cultivated for thousands of years across Asia and Africa before gaining prominence in Southern United States cuisine. These peppery leaves are a nutritional powerhouse, delivering 258 mcg of vitamin K per 100g—nearly 300% of daily requirements—which is critical for bone mineralization, vascular health, and longevity. The high glucosinolate content (characteristic of cruciferous vegetables) converts to isothiocyanates during digestion, compounds extensively studied for anti-cancer and detoxification properties. With 70mg of vitamin C per 100g, mustard greens support collagen synthesis, immune function, and reduce oxidative stress. The combination of potassium (384mg), calcium (115mg), and magnesium (32mg) supports cardiovascular health and bone density maintenance—key longevity markers. Additionally, mustard greens contain kaempferol and quercetin, flavonoids with demonstrated neuroprotective and anti-inflammatory effects. The fiber content (3.2g per 100g) supports healthy gut microbiota, which increasingly appears central to healthy aging. Raw or lightly cooked preparations maximize heat-sensitive vitamin C and glucosinolate bioavailability, making mustard greens an ideal longevity vegetable for regular consumption.
Health benefits 5
Supports bone health and reduces osteoporosis riskstrong
Exceptional vitamin K content (258 mcg/100g) activates osteocalcin proteins essential for bone mineralization and calcium binding in the bone matrix
Reduces cancer risk through Phase I and II detoxificationmoderate
Glucosinolates in mustard greens are metabolized into sulforaphane and isothiocyanates, which upregulate detoxification enzymes (GST, SOD) and induce apoptosis in pre-cancerous cells
Improves cardiovascular health and reduces arterial stiffnessstrong
High potassium (384mg) supports vasodilation and electrolyte balance; vitamin K activates Matrix Gla Protein (MGP) to prevent arterial calcification
Enhances immune function and reduces infection riskstrong
Vitamin C (70mg) supports collagen cross-linking for barrier integrity and promotes T-cell differentiation; flavonoids provide antiviral and antibacterial effects
Promotes healthy gut microbiota and metabolic healthmoderate
Soluble fiber (3.2g/100g) serves as prebiotic substrate for beneficial bacteria; produces short-chain fatty acids linked to reduced inflammation and improved insulin sensitivity
Pairs with
Pair with healthy fats (olive oil, avocado, nuts) because fat-soluble vitamins K, A, and E require dietary fat for optimal absorption and transport
Combine with alliums (garlic, onions) because sulfur compounds enhance glucosinolate metabolism and provide synergistic anti-inflammatory effects
Serve with vitamin C sources (citrus, bell peppers) because acidic environments preserve heat-sensitive vitamin C during cooking and enhance non-heme iron bioavailability from the greens
Pair with fermented foods (kimchi, sauerkraut, tempeh) because established gut bacteria directly improve glucosinolate conversion to bioactive isothiocyanates
In the kitchen
Consume raw or lightly sautéed (2-3 minutes) to preserve heat-sensitive vitamin C and glucosinolate compounds; prolonged cooking reduces these beneficial compounds by 30-50%
Massage raw mustard greens with salt and lemon juice to break down cell walls, improve texture, and enhance nutrient bioavailability without cooking
Store in refrigerator crisper drawer in breathable bag for up to 7 days; wash thoroughly as leafy greens can harbor soil pathogens
Choose younger, smaller leaves with vibrant color for milder peppery flavor and more tender texture; older leaves become increasingly bitter
Aim for 1-2 cups of mustard greens daily (raw or cooked equivalent) to achieve meaningful vitamin K intake while maintaining variety in cruciferous vegetable consumption
When to eat it anytime
Mustard greens contain no compounds that concentrate at specific times; however, consuming with meals enhances fat-soluble vitamin absorption and stabilizes blood sugar with fiber content
Fasting-compatible
Can be consumed during intermittent fasting as negligible calories (27 kcal/100g) do not trigger insulin response; raw consumption is ideal pre-fasting to maximize nutrient density