Blue Spirulina
Also known as: Arthrospira platensis, Spirulina, Blue Spirulina, Spirulina platensis
Overview
Arthrospira platensis, commonly known as Spirulina or Blue Spirulina, is a cyanobacterium (blue-green algae) found in freshwater environments. It is widely recognized as a nutrient-dense dietary supplement, boasting a rich profile of proteins, vitamins (including B12 and E), and minerals like iron. Spirulina is primarily used for its potential antioxidant, anti-inflammatory, and cardiovascular health benefits. It is available in various forms, including powders, capsules, and tablets. While research on Spirulina's health benefits is growing, the quality of evidence varies, with some high-quality studies alongside inconsistent findings. Sourcing from reputable suppliers is crucial to avoid contamination. Overall, Spirulina is considered a valuable addition to a balanced diet, offering a range of potential health advantages.
Benefits
Spirulina supplementation has demonstrated several potential health benefits. Notably, it can significantly improve cardiovascular health by reducing total cholesterol, LDL-C, and triglyceride levels while increasing HDL-C levels. A meta-analysis showed a weighted mean difference (WMD) for total cholesterol of -46.76 mg/dL (95% CI: -67.31 to -26.22, p < 0.001). Additionally, Spirulina exhibits antioxidant effects, with marginal significant increases in total antioxidant capacity (TAC) and superoxide dismutase (SOD) activity observed. It may also aid in managing type 2 diabetes by improving fasting blood glucose and lipid profiles. However, a study found no significant impact on growth outcomes in children and adolescents. The time course for observing these benefits typically ranges from several weeks to months of consistent supplementation.
How it works
Spirulina's mechanism of action is primarily attributed to its antioxidant properties, which influence lipid metabolism and potentially modulate inflammatory pathways. It interacts with the cardiovascular system by improving lipid profiles, contributing to better heart health. In the context of diabetes management, Spirulina may influence metabolic pathways, helping to regulate blood glucose levels. While the specific molecular targets are not fully defined, it is believed that Spirulina interacts with enzymes involved in lipid metabolism and antioxidant defense systems. Generally, Spirulina is considered to be well-absorbed, although specific bioavailability data remains limited. Further research is needed to fully elucidate its complex mechanisms of action.
Side effects
Spirulina is generally considered safe for consumption at recommended doses, but some side effects have been reported. Common side effects, occurring in more than 5% of users, include gastrointestinal disturbances such as nausea or diarrhea. Uncommon side effects (1-5%) may involve allergic reactions. Rare side effects (less than 1%) include the potential for contamination with heavy metals if the Spirulina is not sourced properly. Due to its high vitamin K content, Spirulina may interact with blood thinners. It is contraindicated during pregnancy and breastfeeding due to limited safety data. Individuals with autoimmune diseases should consult healthcare providers before use, as Spirulina may modulate the immune system. It is crucial to source Spirulina from reputable suppliers to minimize the risk of contamination and ensure product safety.
Dosage
The minimum effective dose of Spirulina typically starts at 1-2 grams per day. Optimal dosage ranges are generally between 2-5 grams per day to achieve most of the reported health benefits. It is generally not recommended to exceed 10 grams per day. Spirulina is best taken with meals to minimize potential gastrointestinal side effects. It is available in powder, capsule, or tablet forms, with powder potentially offering better bioavailability. Absorption may be enhanced when taken with fatty meals. There are no specifically identified required cofactors. Individuals should adhere to recommended dosage guidelines and consult with a healthcare provider if they have any underlying health conditions or concerns.
FAQs
When can I expect to see results from taking Spirulina?
Noticeable benefits, such as improved lipid profiles and antioxidant status, may be observed within a few weeks to months of consistent Spirulina supplementation.
Is Spirulina safe to take?
Spirulina is generally safe, but it's crucial to source it from a reputable supplier to avoid potential contamination with heavy metals or other harmful substances.
What is the best way to take Spirulina?
Spirulina is best taken with meals to minimize gastrointestinal side effects. It is available in various forms, including powder, capsules, and tablets.
Is Spirulina a cure-all for health problems?
No, Spirulina is not a cure-all. Its benefits are generally supportive rather than curative, and it should be used as part of a balanced diet and healthy lifestyle.
Research Sources
- https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5091689 – This systematic review and meta-analysis assessed the impact of spirulina supplementation on growth outcomes in children. The study found no significant effect on weight changes, indicating that spirulina supplementation does not significantly influence growth in children.
- https://pmc.ncbi.nlm.nih.gov/articles/PMC8468496/ – This meta-analysis examined the effect of spirulina on blood pressure. The results were mixed, with significant heterogeneity among the included studies, suggesting that the impact of spirulina on blood pressure may vary depending on the population and study design.
- https://pubmed.ncbi.nlm.nih.gov/34235823/ – This systematic review and meta-analysis investigated the antioxidant effects of spirulina supplementation. The study showed that spirulina had marginal significant effects on total antioxidant capacity and superoxide dismutase activity, suggesting a potential role in enhancing antioxidant defense systems.
- https://pmc.ncbi.nlm.nih.gov/articles/PMC8212345/ – This systematic review explored the potential benefits of spirulina in managing type 2 diabetes. The review found that spirulina may improve fasting blood glucose and lipid profiles in patients with type 2 diabetes, indicating a potential adjunctive role in diabetes management.
- https://pubmed.ncbi.nlm.nih.gov/26433766/ – This meta-analysis demonstrated the effects of spirulina on lipid profiles. The study showed that spirulina supplementation significantly reduces total cholesterol, LDL-C, and triglycerides while increasing HDL-C levels, highlighting its potential benefits for cardiovascular health.
Supplements Containing Blue Spirulina

Hydration Blue Raspberry Lemonade
Ee Essential elements

Blue Spirulina
Double Wood Supplements

Brain Superfood Tonic Blue Raspberry Flavor
Nested Naturals

Kiss Your Blues Away Berry Coconut Cooler Flavored
KOS

Bolt From The Blue Electric Boostberry Flavored
KOS

RYZE Mushroom Matcha
RYZE
SUPERFOOD LATTE AVEC SUPERALIMENTS BLUE LAVENDER LAVANDE BLEUE
blume

FITMINGO LIFESTYLE PROTEIN BLUEBERRY
BIRDMAN®
Micronized CREATINE BURST Citrus Rush
NutraBio® PERFORMANCE

Wildcrafted Sea Moss, Blue Spirulina, Natural Raspberry Concentrate, Monk Fruit Juice Concentrate
TrueSeaMoss®

MARINE GLOW Organic Luminizing Superfood Powder
Kuli Kuli®

organic blue spirulina
microingredients®
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