Spirulina for dogs: what it is, what it contributes, and how to use it
Dog owners are paying increasing attention to what goes into their dog's food. Fewer additives, more transparency about origin, more focus on ingredient quality. Spirulina fits into this development — not as a miracle cure, but as a nutrient-dense, natural ingredient with a clear profile.
This article explains what spirulina is, what its nutritional profile entails, how to use it practically, and what to look out for.
What is spirulina?
Spirulina (Arthrospira platensis) is a cyanobacterium — a blue-green micro-organism that has existed for billions of years and grows through photosynthesis in warm, alkaline water. It has been used as a food source for centuries, and is now also available as an ingredient in animal nutrition.
Dried and ground, it produces a dark green powder with an exceptional nutritional profile:
- Protein: 60–70% of dry weight, including all essential amino acids
- Iron — present in relevant amounts
- Vitamins B1, B2, and B3
- Vitamin E
- Beta-carotene — precursor to vitamin A
- Phycocyanin — the blue pigment, widely studied in scientific research
- Chlorophyll and trace minerals
Spirulina has no cell wall, which benefits digestibility — for both humans and animals.
What does spirulina contribute to your dog's diet?
Spirulina is primarily a nutrient-dense ingredient. It can be a meaningful addition to your dog's daily diet, particularly as a source of plant-based protein, iron, and micronutrients.
It is not a replacement for a balanced dog diet and not a treatment for conditions. It is an ingredient — with a strong nutritional profile, a clean origin, and a low ecological footprint.
Particularly relevant for:
- Active dogs that benefit from a protein-rich supplement
- Dogs on a varied diet where the owner consciously chooses natural ingredients
- Owners who want to verify the quality and origin of every ingredient in the food
Dosage and use
The right amount depends on your dog's weight. As a general guideline:
| Dog weight | Recommended amount |
|---|---|
| 1–15 kg | ¼ scoop per meal |
| 15–30 kg | ½ scoop per meal |
| 30+ kg | 1 scoop per meal |
Always start with a smaller amount and build up gradually — this allows your dog to get used to the new ingredient and lets you observe the response carefully.
Practical tips:
- Mix the powder through wet food for best absorption
- Preferably give daily — consistency is more important than quantity
- Store the powder dry, dark, and sealed to prevent oxidation
Points of attention
Spirulina is generally well tolerated by dogs at the correct dosage. Some dogs may experience temporary digestive discomfort if introduced too quickly or at too high a dose. Build up the amount slowly and monitor your dog's response.
Always consult a veterinarian before starting spirulina as a supplement, especially with:
- Dogs with known health conditions or those on medication
- Pregnant or lactating females
- Dogs with a sensitive digestive system or known food sensitivities
Spirulina is not a replacement for veterinary advice or medical treatment.
Why Aligma's spirulina?
Not all spirulina is equal. Quality starts with the growing environment, and that differs considerably between producers.
Aligma cultivates spirulina in closed photobioreactors: a fully controlled environment without open water bodies, without external contamination risks, without agricultural land. The result is a consistent, traceable product with a verifiable nutritional profile — from algae to powder.
No agricultural land. No fishing. Full traceability.