Superfood supplements are having a moment—and for good reason. If you’ve dipped your toes into the world of green powders or algae tablets, you’ve probably come across chlorella and spirulina. These two nutrient-packed powerhouses are often lumped together, but they actually have distinct properties, benefits, and ideal uses.
So, what’s the difference between chlorella and spirulina? And should you be taking one, the other, or both?
Let’s break it down.
🟢 What is Chlorella?
Chlorella is a single-celled freshwater green algae that’s especially rich in chlorophyll—the compound that gives plants their green color and helps detoxify the body. It has a tough outer cell wall, which needs to be “cracked” or broken for your body to absorb its nutrients.
Key Benefits of Chlorella:
- 🌱 Detoxification: Binds to heavy metals and toxins for safe elimination
- 💪 Immune support: Boosts immune cell activity and overall defense
- 💚 Chlorophyll powerhouse: Supports blood purification and oxygen transport
- 🌿 Rich in active B12: Great for vegans and vegetarians
- ✨ Skin and cellular health: Promotes regeneration from the inside out
🔵 What is Spirulina?
Spirulina is technically a blue-green cyanobacteria, but it behaves like algae—and it’s one of the oldest life forms on Earth. It’s known for its high protein content and unique antioxidant called phycocyanin, which gives it a blue tint.
Key Benefits of Spirulina:
- ⚡ Energy and endurance: Popular with athletes for boosting stamina
- 🧬 High-quality plant protein: Up to 70% protein by weight
- 🔥 Anti-inflammatory support: Rich in GLA (gamma-linolenic acid)
- 🩸 Iron-rich: Supports red blood cell production and metabolism
- 🧠 Cognitive support: Contains essential amino acids and antioxidants
⚔️ Chlorella vs. Spirulina: Side-by-Side

💡 So… Which One Should You Take?
The choice depends on your goals.
- ✅ Choose Chlorella if… you want to detox from environmental toxins, support immune health, and get a rich dose of chlorophyll and B12. It’s especially useful post-illness or during heavy metal detox protocols.
- ✅ Choose Spirulina if… you need a plant-based protein boost, more energy, and help with inflammation and exercise recovery.
🔄 Can You Take Both?
Absolutely. In fact, combining them may give you the best of both worlds:
- Chlorella helps clean out the system.
- Spirulina helps fuel and replenish it.
Many brands even offer blended formulas to simplify your supplement routine.
Final Thoughts
Chlorella and spirulina may look similar in your supplement cabinet, but they serve different purposes inside your body. Whether you’re chasing more energy, deeper detox, or everyday vitality, understanding how these algae work gives you the edge in choosing what’s right for you.
Want to try them out? Start with small doses and see how your body responds—or talk to a functional health practitioner (hi, I’m Aimie 👋) for personalized recommendations. “I take both”