Top 10 Vegetables High in Protein Per 100g: The Ultimate Guide to Plant-Based Protein for Muscle, Weight Loss & Vegan Health
If You’re Ignoring Vegetables for Protein, You’re Making It Harder Than It Needs to Be. You’ve heard it: “You can’t build muscle without chicken.” “Vegans are protein deficient.” “Vegetables have no protein.”…
Here’s the truth backed by USDA data: The 10 vegetables below deliver 1.9g to 5.4g protein per 100g. Eat them in normal portions — a big salad, a roasted tray, a bowl of soup — and you easily add 25–50g of high-quality plant based protein to your day, plus 30g fiber, potassium, iron, folate, Vitamin K, and antioxidants.
This isn’t about replacing meat. It’s about stacking. Add these vegetables with most protein to your beans, tofu, eggs, or chicken and you hit your protein target while staying fuller, leaner, and healthier. This is the guide I wish I had when I went plant-based.
Protein values: All per 100g raw, USDA FoodData Central. Cooked values noted where relevant.
1. Green Peas – 5.4g Protein | The Complete Protein Vegetable
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Green peas are the #1 high protein vegetable and the only one on this list that is a near-complete protein with a PDCAAS score of 0.82. That means all 9 essential amino acids, especially high lysine which most grains lack.
Why it matters for muscle: 1 cup cooked peas = 8.6g protein with 0.7g leucine — the exact amino acid that triggers muscle protein synthesis. This is why pea protein isolate powers most vegan protein powders.
Beyond protein: 5g fiber per 100g, 22% DV Vitamin K, 25% DV Manganese, low glycemic load of 3. Perfect for blood sugar control.
How to eat more: Don’t just serve as a side. Blend 1 cup frozen peas into oatmeal — you won’t taste it and you get +8g protein. Make pea hummus instead of chickpea. Add to pasta water in the last minute. Keep 3 bags frozen at all times — they’re cheaper and more nutritious than “fresh.”
Who needs it most: Vegans, kids, pregnant women, athletes over 40. The leucine + folate combo protects against sarcopenia and supports fetal development.
2. Spinach – 2.9g Protein | The Nitric Oxide Powerhouse
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Don’t be fooled by 2.9g. Spinach is 91% water. Cook it down and 100g raw becomes 15g cooked. That’s why 1 cup cooked spinach = 5.3g protein, not 2.9g.
Why it matters for performance: Spinach is the #1 dietary nitrate source. 100g = 250mg nitrates, which convert to nitric oxide. That’s the same mechanism as pre-workout. Studies show 300g spinach improves time-to-exhaustion by 15%.
Beyond protein: 56% DV Vitamin A, 181% DV Vitamin K, 15% DV iron, 15% DV folate per 100g. Also high in lutein for eye health.
How to eat more: The “green cube” method. Blend 2 bags spinach with water, pour into ice cube trays. Add 3 cubes to smoothies, soups, eggs, pasta sauce daily. Zero taste, +3g protein. For high protein breakfast, wilt 4 cups spinach into tofu scramble — you just added 5g protein and doubled volume.
Oxalate note: If you have kidney stones, blanch 1 minute and dump water. Removes 40% oxalates, keeps protein.
3. Broccoli – 2.8g Protein | The Bodybuilder’s Cutting Vegetable
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Broccoli is famous for a reason. 100g = 2.8g protein, 2.6g fiber, only 34 calories. That protein-to-calorie ratio beats most foods.
Why it matters for fat loss: Satiety index of 280 — the highest ever recorded. You can eat 500g steamed broccoli = 14g protein, 170 cal, and be stuffed for 4 hours. This is why every physique competitor eats it.
Beyond protein: 89mg Vitamin C per 100g, more than oranges. Also sulforaphane — when you chop broccoli and wait 40 minutes before cooking, you create a compound that activates 200+ detox genes in your liver.
How to eat more: Don’t throw stems away. Peel and slice — they’re sweeter than florets and same protein. Make broccoli rice in food processor and mix 50/50 with real rice — you cut 100 calories and add 3g protein. Roast with nutritional yeast — 2 tbsp adds 4g complete protein and cheesy flavor.
Best for: Cutting phases, diabetics, anyone with estrogen dominance — DIM in broccoli helps metabolize excess estrogen.
4. Brussels Sprouts – 3.4g Protein | The Hormone Detox Vegetable
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At 3.4g per 100g, brussels beat broccoli. 1 cup roasted = 4g protein.
Why it matters for hormones: Contains glucobrassicin, which converts to DIM in your gut. DIM is used in clinics to help with PCOS, acne, PMS, and men with high estrogen. You’re getting hormone therapy in vegetable form.
Beyond protein: 85mg Vitamin C, 3.8g fiber, and more glucosinolates than any other cruciferous.
How to eat more: Shave them raw. You’ll eat 3x the volume vs roasted. Make shaved brussels caesar with hemp seeds. Or halve and air fry — crispy in 12 minutes. Toss with balsamic and 2 tbsp pumpkin seeds for +5g protein.
Pro tip: If they give you gas, start with 1/2 cup and increase weekly. Your microbiome adapts and produces less gas in 14 days.
5. Kale – 4.3g Protein | The Most Nutrient-Dense Protein Green
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Kale wins raw. 4.3g protein per 100g, plus 684% DV Vitamin K, 206% DV Vitamin A.
Why it matters for longevity: Kale has 45 flavonoids including quercetin and kaempferol. In the Nurses’ Health Study, 1 serving daily of kale/collards lowered all-cause mortality by 23%.
Beyond protein: Calcium in kale is 50% absorbable vs 32% in milk, because it’s low oxalate. Huge for vegan bone health.
How to eat more: Massage is non-negotiable. Tear leaves, add 1 tsp olive oil + lemon, massage 2 minutes. You’ll eat 3 cups instead of 1. Make kale chips: 200g kale = 8.6g protein, 100 cal. Or blend into pesto with walnuts — 1/4 cup = 6g protein.
Best for: Women over 35, anyone with inflammation, low-calorie diets.
6. Sweet Corn – 3.2g Protein | The Athlete’s Recovery Carb
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3.2g protein + 19g carbs per 100g. That 6:1 carb-to-protein ratio is identical to recovery drinks.
Why it matters for performance: Corn provides fast glycogen plus leucine to start repair. Also the only vegetable high in lutein and zeaxanthin — protects eyes from blue light if you work on screens.
Beyond protein: Contains resistant starch when cooled. Make corn salad and refrigerate feeds good gut bacteria.
How to eat more: The perfect complete protein combo is corn + beans. 1 cup each = 15g protein, all amino acids. Make street corn bowls with black beans, cotija or nutritional yeast, lime.
Myth: “Corn is GMO sugar.” Sweet corn for humans is <10% GMO. It’s field corn for cows that’s GMO. And glycemic load is 9 — same as apple.
7. Mushrooms – 3.1g Protein | The Umami Meat Replacement
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White button = 3.1g, oyster = 3.3g, portobello = 2.1g per 100g.
Why it matters for immunity: Mushrooms contain beta-glucans that train your immune system. Also ergothioneine — an antioxidant that protects mitochondria and slows cellular aging.
Beyond protein: Put mushrooms in sun for 30 minutes before cooking — they make Vitamin D2. 100g sun-exposed = 400 IU, same as supplement.
How to eat more: Dice mushrooms super fine and sauté dry first. They shrink 70%. Mix 50/50 with ground beef or lentils for tacos — doubles volume, keeps protein high, cuts calories. Make mushroom bacon with shiitake, soy, smoke. Or lion’s mane crab cakes — shreds like crab, 7g protein per cup.
Best for: Keto, low-calorie, immune support, anyone transitioning to plant based.
8. Asparagus – 2.2g Protein | The Natural Diuretic
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2.2g raw, but 1 cup cooked = 4.3g because it shrinks.
Why it matters for debloating: Contains asparagine, a natural diuretic, plus 202mg potassium per 100g. Helps flush water retention without depleting minerals like pills do.
Beyond protein: #1 vegetable source of folate at 52% DV per cup. Critical for methylation and pregnancy. Also prebiotic inulin feeds Bifidobacteria.
How to eat more: Roast thick spears at 425F 12 min with olive oil and nutritional yeast. Or wrap in prosciutto or tempeh bacon. Make asparagus white bean salad — 2 cups asparagus + 1 cup beans = 19g protein, perfect for PMS week.
Season: Buy March–June. Thick spears have more protein than pencil-thin.
9. Cauliflower – 1.9g Protein | The Ultimate Carb Swap
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Only 1.9g, but its power is replacement. 1 cup rice = 205 cal, 4g protein. 1 cup cauliflower rice = 25 cal, 2g protein. You save 180 calories to spend on tofu, tempeh, or chicken.
Why it matters for weight loss: You can eat an entire head of cauliflower = 146 cal, 11g protein, 12g fiber. Try eating that much rice.
Beyond protein: High in choline — 80% of people are deficient. Choline is needed for fat metabolism and brain health.
How to eat more: Never eat plain. Always pair: Cauliflower + chickpea curry = 18g protein. Cauliflower mac with white beans blended into sauce = 22g protein. Buffalo cauliflower with hemp ranch = 14g protein snack.
Buy whole heads, not pre-riced. Pre-riced loses 50% Vitamin C in 2 days.
10. Artichoke – ∼3.5g Protein | The Gut Health King
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USDA lists 3.3g per 100g hearts, 3.5g for whole. 1 medium artichoke = 4.2g protein + 10.3g fiber — the highest fiber of any vegetable.
Why it matters for gut: 70% of that fiber is inulin, the exact prebiotic that feeds Akkermansia muciniphila, the bacteria most associated with leanness, better glucose control, and stronger gut barrier.
Beyond protein: Highest antioxidant score of all vegetables. Also cynarin, which increases bile flow 150% — helps digest fat and detox estrogen.
How to eat more: Buy frozen artichoke hearts in water. Canned marinated is fine but oily. Add to pasta, pizza, salads. Make artichoke white bean dip: 1 can hearts + 1 can beans + lemon = 23g protein per bowl.
Best for: IBS, fatty liver, constipation, sugar cravings — inulin reduces ghrelin.
How to Combine These for 30g+ Protein Meals Without Powder
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Breakfast – 28g: Tofu scramble with 2 cups spinach, 1/2 cup peas, nutritional yeast. Spinach and peas add 7g you wouldn’t have.
Lunch – 32g: Big kale salad with 2 cups massaged kale, 1 cup roasted brussels, 1 cup broccoli, 1/2 cup chickpeas, hemp seeds, tahini. Vegetables contribute 14g.
Dinner – 30g: Cauliflower fried rice with 2 cups cauliflower, 1 cup corn, 1 cup mushrooms, edamame, tamari. Vegetables = 15g.
You hit 90g protein before snacks, and you’ve eaten 10 cups of vegetables.
Final Takeaway
You don’t need to choose between protein and vegetables. The top 10 vegetables high in protein give you both. Start with frozen peas, spinach, and broccoli — add 1/2 cup to every meal this week. That’s +15g protein and +8g fiber daily with zero extra effort.
Want the full 7-day high protein vegetable meal plan with shopping list? I’ll build it for you.
For more plant based nutrition, high protein vegan recipes, and science-backed wellness, visit www.easyvitallife.com.