Does Cauliflower Contain Vitamin K? | The Truth In One Cup

If you’re tracking vitamin K for a reason—maybe you’re aiming for steadier intake, or you’re on a medication plan where consistency matters—knowing where cauliflower lands helps you plan meals without guesswork.

What Vitamin K Does In The Body

Vitamin K is a fat-soluble vitamin your body uses to activate proteins involved in normal blood clotting. It also takes part in processes tied to bone metabolism. Those roles are why vitamin K comes up in conversations about bruising, bleeding risk, and bone health.

Most food vitamin K is vitamin K1 (phylloquinone), the form found in plants. Your gut bacteria can also produce forms known as vitamin K2 (menaquinones), though the amount and impact vary by person.

Daily “enough” is set as an Adequate Intake (AI) in the United States: 120 micrograms (mcg) for adult men and 90 mcg for adult women. Pregnant and breastfeeding needs differ slightly, and individual targets can change based on medical context. The NIH ODS fact sheet lays out the numbers and the reasoning behind them.

Vitamin K In Cauliflower With Common Serving Sizes

Cauliflower contains vitamin K in moderate amounts. The clearest way to think about it is in servings you actually eat: a cup of chopped raw cauliflower is listed at 16.6 mcg of vitamin K (phylloquinone). That’s a noticeable slice of a day’s AI, but it’s not so high that one serving dominates your intake.

Why does that matter? Because vitamin K is a “pattern” nutrient. One serving rarely tells the whole story. Your day adds up through breakfast, lunch, dinner, snacks, and even little add-ins like herbs or salad greens. Cauliflower can be one of several steady, repeatable sources.

Raw Vs Cooked: Will Cooking Change Vitamin K?

Vitamin K is fat-soluble and generally stable with heat compared with some water-soluble vitamins. Cooking can still shift the numbers per bite because serving sizes change. A cup of raw florets and a cup of cooked cauliflower don’t weigh the same. Steaming also reduces volume, so you can eat more grams without feeling like you’re eating more “cups.”

If you want a practical approach, track by the portion you serve. If you measure by cups, keep using cups. If you track by grams, stick with grams. Consistency beats perfect precision for day-to-day eating.

How Cauliflower Compares To Leafy Greens

Cauliflower sits far below leafy greens in vitamin K density. That’s why it often feels “safe” to people who are cautious about high-vitamin-K foods. Still, moderate foods can matter when they show up often—cauliflower rice, mashed cauliflower, roasted florets, pickled cauliflower in salads, and so on.

If you want the primary sources behind the vitamin K targets and food values, these two NIH pages do the heavy lifting: NIH ODS vitamin K food table and NIH ODS vitamin K fact sheet.

Also, if you want a plain-language overview of what vitamin K does and why it’s linked to blood clotting, this is a solid read: Harvard T.H. Chan School of Public Health: Vitamin K.

Does Cauliflower Contain Vitamin K? What The Numbers Show

The short, practical answer is yes. A cup of raw cauliflower gives 16.6 mcg of vitamin K (phylloquinone) in the NIH ODS vitamin K food table. Put that next to the adult AI (90–120 mcg), and you can see why cauliflower counts without being a “mega source.”

That middle ground is useful when you’re trying to keep your intake steady. One serving won’t swing your day on its own. A few servings across the week, paired with other vitamin K foods, can help you hit a consistent pattern.

Vitamin K Is Only One Part Of The Cauliflower Picture

Even if you came here for vitamin K, cauliflower brings other nutrition perks that shape how it fits on a plate: it’s low in calories, has fiber, and pairs well with fats like olive oil, tahini, yogurt sauces, or nuts. That pairing matters because fat helps your body absorb fat-soluble vitamins, including vitamin K.

If your meals are low-fat, adding a small amount of fat can improve absorption without turning the meal into a calorie bomb. Think: a drizzle of olive oil on roasted cauliflower, a spoon of hummus, or a yogurt-based dip.

How To Use Cauliflower To Build A Steady Vitamin K Pattern

Steady intake is easier when you have repeatable “default” meals. Cauliflower is a strong candidate because it’s flexible and mild. You can keep it on rotation without getting bored.

Pick A Portion And Stick With It

If you want a simple anchor, choose one common portion—like 1 cup raw chopped, or one heaped cup of roasted florets—and keep that as your baseline. Then your vitamin K intake from cauliflower stays predictable.

Use A Fat Pairing You Actually Like

Vitamin K absorption happens in the presence of dietary fat. You don’t need much. A teaspoon or two of oil, a small handful of nuts, or a dairy sauce can do the job. Pick the pairing you’ll repeat, because repeatability is what makes a pattern stick.

Rotate Cooking Styles Without Changing Portions Much

Roasted, steamed, sautéed, riced—use the method that fits your week. If you’re tracking portions, keep the serving size steady, then swap seasonings so it doesn’t feel like you’re eating the same dish on loop.

Vitamin K Levels In Common Cauliflower Portions

The table below puts cauliflower in context using common portions and the vitamin K values reported in the NIH ODS vitamin K food table. Treat these as planning numbers, not lab-grade targets. Real-world servings vary by how tightly you pack a cup and how large the florets are.

Food And Portion	Vitamin K (mcg)	Notes For Meal Planning
Cauliflower, raw, 1 cup chopped	16.6	Moderate dose; easy “default” serving.
Cauliflower, green, raw, 1 cup	12.9	Different variety; still moderate.
Broccoli, raw, 1 cup chopped	Higher than cauliflower	Often a bigger vitamin K source per cup.
Brussels sprouts, cooked, 1 cup	Much higher than cauliflower	Can swing daily totals if portions vary.
Spinach, raw, 1 cup	Much higher than cauliflower	Leafy greens dominate vitamin K intake.
Iceberg lettuce, shredded, 1 cup	Lower than cauliflower	Low-vitamin-K salad base.
Green peas, cooked, 1 cup	Moderate	Another steady, repeatable source.
Avocado, sliced, 1/2 fruit	Moderate	Pairs well with cauliflower and adds fat.

If you want the original nutrient listings used for cauliflower portions, see the NIH ODS PDF table: Vitamin K (phylloquinone) in foods.

When Vitamin K Consistency Matters Most

For many people, vitamin K is just another nutrient to meet over time. For some, steadiness matters more than hitting a target, especially for people taking vitamin K antagonists such as warfarin. Warfarin works by interfering with vitamin K’s role in clotting, so large swings in vitamin K intake can change the drug’s effect.

Two reputable sources spell this out clearly. The NIH ODS fact sheet notes that people on warfarin need consistent vitamin K intake. MedlinePlus gives similar advice in the warfarin drug information page, including a direct reminder to keep vitamin K-containing foods steady week to week: MedlinePlus: Warfarin.

What This Means For Cauliflower

Cauliflower isn’t a top-tier vitamin K source, yet it can still matter if you eat it often, then suddenly stop—or if you rarely eat it, then start eating big portions daily. The fix is simple: pick a pattern and keep it.

If you’re on warfarin, don’t treat this as a “ban foods” rule. Treat it as a “keep your usual level steady” rule. Your clinician may adjust medication dosing based on your typical diet, so changing your intake without telling them can create surprises.

Easy Ways To Add Cauliflower Without Surprise Swings

If you want cauliflower on repeat, build it into meals where the portion stays stable. These options keep serving sizes predictable and keep prep low-stress.

Roasted Cauliflower As A Side

Roast florets with olive oil, salt, pepper, and any spice blend you like. Keep the portion consistent: scoop the same amount onto your plate each time. Roasting concentrates flavor, so a modest portion still feels satisfying.

Cauliflower Rice In Bowls

Use cauliflower rice as part of a bowl with protein and a sauce. Portion it with the same measuring cup you use for grains. That way the vitamin K contribution stays steady across the week.

Mashed Cauliflower With A Fat Source

Blend cooked cauliflower with a bit of butter, olive oil, or yogurt. You get a creamy side that also includes dietary fat for vitamin K absorption. Keep the scoop size the same each time you serve it.

Cauliflower Meal Ideas And Vitamin K Planning

This second table is built for real life: it connects common cauliflower dishes to a simple “keep it steady” strategy. It’s meant to help you plan meals that feel normal, not clinical.

Meal Or Prep Idea	Portion Anchor	Steady-Intake Tip
Roasted florets with olive oil	1 cup florets per serving	Use the same measuring cup when plating.
Cauliflower rice bowl	3/4 cup cauliflower rice	Keep rice portion fixed; vary seasonings.
Mashed cauliflower side	1 heaped cup mash	Scoop with the same spoon each time.
Sheet-pan cauliflower and chicken	1 cup cauliflower plus protein	Divide pan into equal portions before serving.
Raw cauliflower with dip	1 cup raw pieces	Pack snack containers with a set amount.
Stir-fried cauliflower with eggs	1 cup cooked cauliflower	Keep the scoop size steady; rotate sauces.

Practical Takeaways

Cauliflower does contain vitamin K, and it’s enough to count. A cup of raw chopped cauliflower is listed at 16.6 mcg of vitamin K in the NIH ODS food table. That makes cauliflower a moderate source—useful as part of a steady routine, without the steep vitamin K density of many leafy greens.

If you’re taking warfarin, stick to keeping your vitamin K intake steady instead of bouncing between extremes. Use consistent portions, keep your default meals predictable, and talk with your clinician before making big diet shifts. MedlinePlus and the NIH ODS fact sheet both stress the same core idea: consistency.