
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.
Vitamins & minerals packed in relative to calories — the single biggest driver of the score.
How much protein it delivers, by absolute grams and per calorie.
Dietary fiber for gut health, satiety and steadier blood sugar.
Fat quality — unsaturated vs saturated, and trans-fat free.
Polyphenols, flavonoids and other beneficial plant compounds for this food group.
Low sugar with a high fiber-to-carb ratio scores best — gentler on blood sugar.
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.
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
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