Kale Macros: Complete Nutrition Guide

Reviewed by Dr. Michael Torres, PhD

Fresh curly kale leaves in bowl - 7g carbs, 3g protein, 0.5g fat per cup raw

Kale earned its superfood reputation. Among leafy greens, it stands out for exceptional nutrient density—packed with vitamins, minerals, and fiber while being almost negligibly low in calories.

For macro trackers, kale is nearly a “free” food that happens to provide significant nutritional value. You can eat large quantities without impacting your calorie budget while getting vitamins you’d otherwise need supplements for.

This guide covers kale’s macros in detail, plus how to actually enjoy eating it (because raw kale straight from the bag isn’t winning any taste tests).

Kale Macros: Quick Reference

Here’s the complete breakdown for kale.

Per Cup Raw, Chopped (67g)

NutrientAmount% Daily Value
Calories332%
Protein2.9g6%
Total Carbs6.7g2%
Fiber2.4g9%
Net Carbs4.3g-
Fat0.5g1%
Vitamin K547mcg684%
Vitamin A10,302 IU206%
Vitamin C80mg134%
Manganese0.5mg26%
Calcium90mg9%

Per Cup Cooked, Boiled (130g)

NutrientAmount% Daily Value
Calories362%
Protein2.5g5%
Total Carbs7.3g3%
Fiber2.6g9%
Net Carbs4.7g-
Fat0.5g1%
Vitamin K1,062mcg1,328%
Vitamin A17,707 IU354%
Vitamin C53mg89%

Per 100g (Raw)

NutrientAmount
Calories49
Protein4.3g
Carbs10g
Fiber3.6g
Fat0.9g

Key insight: Cooking kale concentrates nutrients (more vitamins per cup) because the volume shrinks dramatically. One cup raw becomes about 1/2 cup cooked.

Kale Types Compared

Curly Kale

Per Cup RawAmount
Calories33
TextureRuffly, crunchy
Best forSalads, chips

Most common variety. Sturdy leaves, slightly bitter.

Lacinato (Dinosaur/Tuscan) Kale

Per Cup RawAmount
Calories33
TextureFlat, bumpy
Best forCooking, soups

Darker leaves, more tender, slightly sweeter. Often preferred for cooking.

Red/Purple Kale

Per Cup RawAmount
Calories33
TextureSimilar to curly
Best forSalads (color)

Beautiful color, similar nutrition. Contains additional anthocyanin antioxidants.

Baby Kale

Per Cup RawAmount
Calories20
TextureTender, mild
Best forSalads, smoothies

Young leaves harvested early. More tender, less bitter, easier to eat raw.

Nutritionally nearly identical—choose based on texture preference and use case.

Kale vs Other Leafy Greens

How does kale compare to other popular greens?

Green (1 cup raw)CaloriesProteinFiberVit KVit AVit C
Kale332.9g2.4g684%206%134%
Spinach70.9g0.7g181%56%14%
Swiss chard70.6g0.6g374%44%18%
Romaine80.6g1g48%82%4%
Arugula50.5g0.3g27%9%5%
Collard greens111g1.4g230%48%21%

Kale wins decisively on most nutrients, especially vitamins K, A, and C. It also has more protein than other leafy greens.

See also: Spinach Macros | Broccoli Macros

The Nutrient Density of Kale

Kale ranks among the most nutrient-dense foods on earth. Per calorie, very few foods deliver more nutrition.

Standout Nutrients (Per Cup Raw)

NutrientAmountContext
Vitamin K684% DVOne of the highest sources
Vitamin A206% DVFrom beta-carotene
Vitamin C134% DVMore than an orange
Manganese26% DVImportant mineral
Copper10% DVTrace mineral

Why This Matters

These nutrients support:

  • Vitamin K: Blood clotting, bone health
  • Vitamin A: Vision, immune function, skin
  • Vitamin C: Collagen, immunity, antioxidant
  • Manganese: Bone health, metabolism
  • Antioxidants: Cell protection, anti-inflammatory

One cup of kale provides your entire day’s vitamin K needs and then some.

Kale for Different Diet Goals

Kale for Weight Loss

Verdict: Excellent weight loss food.

Why kale works for weight loss:

  • Extremely low calorie density (33 cal/cup)
  • High volume fills your stomach
  • Fiber (2.4g/cup) increases satiety
  • Nutrient-dense—prevents deficiencies during cutting

Weight loss strategy:

  • Start meals with a large kale salad (50-100 cal)
  • Add kale to smoothies for volume
  • Use as side dish instead of starchy foods
  • Eat kale chips instead of regular chips

Calorie comparison:

  • 3 cups kale salad with dressing: ~200 cal
  • Caesar salad with croutons: ~400+ cal

Use our Macro Calculator to plan your daily intake.

Kale on Keto

Verdict: Perfect keto food.

Per cup raw: Only 4.3g net carbs

Kale is one of the lowest-carb vegetables. Eat freely on any low-carb or keto diet.

Keto kale uses:

  • Salad base
  • Sautéed in olive oil/butter
  • Chips for crunchy snacking
  • Smoothie base (use sparingly—adds up)

Kale for Muscle Building

Verdict: Supportive but not a primary food.

Kale provides:

  • Some protein (2.9g/cup raw)
  • Volume for meal satisfaction
  • Nutrients that support recovery

Use kale in muscle-building meals:

  • Side dish with protein mains
  • Salads topped with chicken/steak
  • Smoothies with protein powder

Kale for IIFYM/Flexible Dieting

Kale is essentially a “free” food for flexible dieters. Track it for completeness, but it won’t significantly impact your macros.

Learn more in our Flexible Dieting Guide.

How to Actually Enjoy Eating Kale

Let’s be honest: raw kale straight from the bag isn’t pleasant. Here’s how to make it genuinely enjoyable.

Massage Your Kale (Really)

For raw kale salads:

  1. Remove stems, chop leaves
  2. Add salt and olive oil
  3. Massage with hands for 2-3 minutes
  4. Kale becomes softer, less bitter, more palatable

This breaks down the cell structure and makes raw kale actually enjoyable.

Kale Salad (Massaged)

  • 2 cups kale, massaged: 66 cal
  • Lemon juice: 5 cal
  • 1 tbsp olive oil: 120 cal
  • Parmesan (1 tbsp): 22 cal
  • Pine nuts (1 tbsp): 57 cal
  • Total: 270 cal, nutrient-packed meal base

Add protein to make it a complete meal.

Kale Chips

  1. Tear kale into chip-sized pieces
  2. Toss with 1 tsp olive oil and salt
  3. Bake at 275°F for 20-25 minutes until crispy
  4. Season with nutritional yeast, garlic powder, etc.

Per serving: ~50 cal Satisfies: Chip cravings without the calories

Sautéed Kale

  1. Heat olive oil in pan
  2. Add garlic, sauté 30 seconds
  3. Add kale, cook 3-5 minutes until wilted
  4. Season with salt, pepper, lemon juice

Per cup cooked: ~70 cal (including oil) Best for: Side dish with any protein

Smoothie Addition

Add 1 cup kale to any fruit smoothie:

  • Nearly undetectable in flavor
  • Adds nutrients
  • Adds fiber
  • Adds volume

Green smoothie base:

  • 1 cup kale: 33 cal
  • 1 banana: 105 cal
  • 1 cup almond milk: 30 cal
  • Protein powder: ~120 cal
  • Total: 288 cal, extremely nutritious

Soup Addition

Add chopped kale to any soup in the last 5 minutes of cooking. It wilts quickly and adds nutrition to:

  • Chicken soup
  • Minestrone
  • Lentil soup
  • Bean soup

Raw vs Cooked Kale

Raw Kale Benefits

  • Preserves vitamin C (heat-sensitive)
  • Preserves certain enzymes
  • Crunchier texture
  • No added cooking fats needed

Cooked Kale Benefits

  • Reduces volume dramatically (easier to eat more)
  • Deactivates goitrogens (thyroid concern)
  • May increase mineral absorption
  • Milder flavor
  • Better for some digestive systems

The Verdict

Eat both. Raw in salads and smoothies, cooked as sides and in soups. Variety provides the benefits of each.

Health Considerations

Vitamin K and Blood Thinners

Kale is extremely high in vitamin K. If you take blood thinners (warfarin/Coumadin):

  • Don’t avoid kale entirely
  • Maintain consistent intake
  • Don’t dramatically increase/decrease consumption
  • Work with your doctor

Thyroid Concerns

Kale contains goitrogens—compounds that may interfere with thyroid function in large amounts.

For most people: Not a concern with normal consumption

For those with thyroid issues:

  • Cooking reduces goitrogens
  • Moderate raw kale intake
  • Discuss with your doctor

Oxalates

Kale contains oxalates, which can contribute to kidney stones in susceptible people.

For most people: Not a concern

For kidney stone history: Moderate consumption, stay hydrated

Kale Meal Ideas

Breakfast

Green eggs scramble:

  • 2 eggs: 180 cal, 12g protein
  • 1 cup sautéed kale: 50 cal
  • Feta cheese (1 oz): 75 cal
  • Total: 305 cal, 17g protein

Lunch

Kale Caesar salad:

  • 3 cups massaged kale: 99 cal
  • Caesar dressing (2 tbsp): 170 cal
  • Grilled chicken (4 oz): 180 cal
  • Parmesan: 40 cal
  • Total: 489 cal, 40g protein

Dinner Side

Garlic sautéed kale:

  • 2 cups kale: 66 cal
  • 1 tbsp olive oil: 120 cal
  • Garlic, lemon, salt: 5 cal
  • Total: 191 cal, pairs with any protein

Snack

Kale chips:

  • 3 cups kale: 99 cal
  • 1 tsp olive oil: 40 cal
  • Seasonings: 0 cal
  • Total: ~140 cal after baking (water loss)

Compare with Cucumber Macros and Zucchini Macros for other low-calorie vegetables.

Common Kale Questions

Does Kale Have Complete Protein?

No. Like all plant foods, kale doesn’t have complete protein. However, eating varied foods throughout the day provides all essential amino acids.

Is Bagged Pre-Washed Kale Good?

Yes, nutritionally similar to fresh bunches. Convenience is a valid reason to choose it. Just check for freshness and use before expiration.

Can I Freeze Kale?

Yes:

  • Blanch briefly (2 minutes)
  • Ice bath to stop cooking
  • Dry thoroughly
  • Freeze in portions

Good for smoothies; texture won’t work for salads after freezing.

Why Is My Kale Bitter?

Bitterness comes from:

  • Mature leaves (younger is milder)
  • Growing conditions
  • Variety (curly tends to be more bitter)

Solutions: Massage with salt/oil, cook it, or choose baby kale.

The Bottom Line on Kale Macros

The facts:

  • 33 calories per cup raw—nearly negligible
  • 2.9g protein—high for a leafy green
  • 4.3g net carbs—very low
  • Extraordinary vitamin K, A, and C content
  • Good source of fiber and antioxidants

Best uses:

  • Weight loss (volume with minimal calories)
  • Nutrient boost in any diet
  • Salads (massaged for palatability)
  • Smoothies (hidden nutrition)
  • Chips (healthy snack substitute)
  • Sautéed sides

Bottom line: Kale genuinely deserves its superfood status. It delivers exceptional nutrition for virtually no caloric cost. The key is preparing it well—massaged salads, crispy chips, or quick sautés—rather than suffering through bitter raw leaves.

If you’re not eating kale, you’re missing one of the easiest ways to increase nutrient density while cutting calories.

For understanding how kale fits into your overall nutrition picture, read What Are Macronutrients.

Sarah Chen
Sarah Chen, MS, RD

Sarah Chen is a registered dietitian with over 10 years of experience helping clients achieve sustainable weight management through evidence-based nutrition strategies. She specializes in macro-based nutrition planning and has worked with competitive athletes, corporate wellness programs, and individual clients seeking body composition changes.

View all articles by Sarah →

Note: Nutrition values are approximate and may vary based on preparation method and source.