Broccoli vs Spinach
Side-by-side nutritional swap analysis for standard 100g reference portions.
💡 Swap Takeaway & Calorie Ratio
Eating 100g of Broccoli (35 kcal) provides the same calorie intake as eating 152g of Spinach. Spinach is 12 kcal lighter per 100g than Broccoli.
🔬 Comparative Science: Broccoli vs. Spinach
1. Caloric Density & Satiety Volume Mechanics
Comparing 100g of Broccoli (35 kcal) to 100g of Spinach (23 kcal) reveals a caloric spread of 12 kcal per 100g. Swapping higher-density Broccoli for lower-density Spinach allows you to increase physical meal volume by 52% for the exact same calorie expenditure, activating gastric mechanoreceptors and stimulating fullness hormones peptide YY (PYY) and GLP-1.
2. Macronutrient & Protein Quality Trade-offs
Broccoli delivers 2.4g protein, 7.2g carbs, and 0.4g fat, whereas Spinach supplies 2.9g protein, 3.6g carbs, and 0.4g fat.Spinach delivers 0.5g more protein per 100g, making it the more anabolic choice for tissue repair and nitrogen retention.
3. 5-Pillar Biohack & Longevity Score Comparison
Spinach leads in cognitive support: Loaded with Lutein, Folate, and Magnesium — key nutrients linked to slower cognitive decline.
Spinach leads in muscle recovery: Dietary Nitrates improve mitochondrial energy efficiency during muscular exertion.
Broccoli leads in digestive motility: Prebiotic fiber and glucosinolates feed beneficial gut bacteria and fortify mucus layers.
Spinach leads in cardiovascular support: High inorganic Nitrates dilate blood vessels, significantly lowering blood pressure.
Broccoli leads in metabolic speed: Low calorie density and high fiber suppress postprandial glucose spikes.
4. Which Food Should You Choose? Decision Matrix
- For Fat Loss & Caloric Deficit: Choose Spinach (23 kcal/100g) to maximize plate volume and extend satiety without exceeding caloric allotments.
- For Muscle Growth & Strength: Choose Spinach (2.9g protein/100g) to hit your essential amino acid targets efficiently.
- For Keto or Low-Carb Diets: Choose Spinach (3.6g carbs/100g) to maintain low baseline insulin secretion.
- For Longevity & Cellular Antioxidants: Review the higher 5-pillar biohack score above to target your personal longevity priority (mitochondrial health, cognitive resilience, or endothelial nitric oxide).
5. Practical Culinary Substitution Guidelines
When substituting Spinach for Broccoli in meal prep, serve exactly 152 grams of Spinach to match the energy yield of 100g of Broccoli. Consider moisture, texture, and sodium content when balancing recipes.
📊 Nutritional Matrix (Per 100g Reference Portion)
| Nutritional Metric | Broccoli | Spinach |
|---|---|---|
| Calories (kcal) | 35 kcal | 23 kcal |
| Protein (g) | 2.4 g | 2.9 g |
| Total Fat (g) | 0.4 g | 0.4 g |
| Carbohydrates (g) | 7.2 g | 3.6 g |
| Primary Category | Vegetables | Vegetables |
Broccoli
🧬 Key Micronutrients
Spinach
🧬 Key Micronutrients
❓ Frequently Asked Questions (Broccoli vs Spinach)
How much Spinach equals 100g of Broccoli?
Exactly 152 grams of Spinach equals the total caloric value of 100g of Broccoli (35 kcal).
Which food is lower in calories: Broccoli or Spinach?
Spinach is lower in calories with 23 kcal per 100g compared to Broccoli with 35 kcal per 100g.
Which has more protein: Broccoli or Spinach?
Spinach provides more protein per 100g (2.9g vs 2.4g).
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