Spirulina
18 benefits mapped to clinical evidence across supplements.
Dose per serving from products
590 products in our catalogue print how much Spirulina a serving holds.
Most common: 2.5 g to 5 g, 27% of 590 products.
| Dose per serving | Products |
|---|---|
| 10 mg or less | 15 |
| 10 mg to 25 mg | 22 |
| 25 mg to 50 mg | 40 |
| 50 mg to 100 mg | 42 |
| 100 mg to 250 mg | 66 |
| 250 mg to 500 mg | 126 |
| 500 mg to 1 g | 79 |
| 1 g to 2.5 g | 39 |
| 2.5 g to 5 g | 157 |
| over 5 g | 4 |
Dose per serving from research
54 study groups in 45 studies say how much Spirulina participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 500 mg to 1 g, 28% of 54 study groups.
| Daily dose | Study groups |
|---|---|
| 500 mg or less | 2 |
| 500 mg to 1 g | 15 |
| 1 g to 2.5 g | 12 |
| 2.5 g to 5 g | 8 |
| 5 g to 10 g | 13 |
| 10 g to 25 g | 3 |
| over 25 g | 1 |
Benefit Evidence
Metabolic health: −1.43% HbA1c
Weight/lipid gains: −41 mg/dL TC
Immune/growth: +9 pp walking
Energy/fatigue: +VO2, time-to-fatigue
Energy/fatigue: ↓MDA, ↑SOD/GSH
Energy/fatigue: +32% TE
Melanosis/keratosis improved; hair As -47.1%
Lesions and burning improved
Metabolic health: −1.43% HbA1c
Weight/lipid gains: −41 mg/dL TC
Immune/growth: +9 pp walking
Energy/fatigue: +VO2, time-to-fatigue
Energy/fatigue: ↓MDA, ↑SOD/GSH
Energy/fatigue: +32% TE
Research sources
Inflammation (10)
- Spirulina maxima improves insulin sensitivity, lipid profile, and total antioxidant status in obese patients with well-treated hypertension: a randomized double-blind placebo-controlled study
PubMed ID: 28617537
Obese hypertensive RCT recorded decreased inflammatory markers (e.g., IL‑6) alongside metabolic benefits.
- A randomized double-blind, placebo-controlled study to establish the effects of spirulina in elderly Koreans
PubMed ID: 18714150
Elderly RCT showed decreased IL‑6 (pro‑inflammatory) versus placebo.
- Effects of Spirulina supplementation in patients with ulcerative colitis: a double-blind, placebo-controlled randomized trial
PubMed ID: 38424572
UC RCT improved antioxidant markers and some QoL/stool outcomes; inflammatory biomarkers largely unchanged but antioxidant changes suggest anti‑inflammatory potential.
- Effect of high-dose Spirulina supplementation on hospitalized adults with COVID-19: a randomized controlled trial
PubMed ID: 38655258
Hospitalized COVID trial (open‑label) reported decreased IL‑6 and favorable cytokine shifts (↑IFN‑γ).
- The effects of spirulina intake on clinical and metabolic parameters in Alzheimer's disease: A randomized, double-blind, controlled trial
PubMed ID: 36861852
Alzheimer's RCT showed reduced hs‑CRP and modest cognitive benefit, indicating decreased systemic inflammation.
- Antioxidant Efficacy of a Spirulina Liquid Extract on Oxidative Stress Status and Metabolic Disturbances in Subjects with Metabolic Syndrome
PubMed ID: 35877734
Phycocyanin-rich extract lowered oxidative stress and improved lipids; oxidative stress reductions often accompany lower inflammation.
- Efficacy of Spirulina 500 mg vs Triamcinolone Acetonide 0.1% for the Treatment of Oral Lichen Planus: A Randomized Clinical Trial
PubMed ID: 35986466
Adjunctive spirulina with steroids in oral lichen planus reduced lesion size and pain — clinically meaningful anti-inflammatory effect.
- Clinical comparison of the efficacy of spirulina platensis and cetirizine for treatment of allergic rhinitis
PubMed ID: 32773785
Allergic rhinitis RCT reduced IL‑4 and nasal inflammation markers — direct inflammatory cytokine reduction.
- Spirulina platensis effectively ameliorates anthropometric measurements and obesity-related metabolic disorders in obese or overweight healthy individuals: A randomized controlled trial
PubMed ID: 30219433
In calorie-restricted overweight/obese adults, spirulina lowered hs‑CRP and appetite, indicating anti-inflammatory effects.
- Effects of spirulina (Arthrospira) platensis supplementation on inflammation, physical and mental quality of life, and anthropometric measures in patients with relapsing-remitting multiple sclerosis (RRMS): a triple-blinded, randomized, placebo-controlled trial
PubMed ID: 40877830
Triple‑blind RCT in RRMS demonstrated robust reductions in proinflammatory cytokines IL‑1β and IL‑6.
Weight management (9)
- Spirulina supplementation and circuit resistance training (CRT) reduce serum asprosin and appetite and improve energy balance in men with obesity and overweight
PubMed ID: 39259404
Randomized trial in overweight men found spirulina (with circuit training) reduced calorie intake, lowered asprosin, and produced weight loss.
- Spirulina supplementation during gradual weight loss in competitive wrestlers
PubMed ID: 33715648
Wrestlers lost more fat and fat mass with spirulina during a weight-loss program — relevant athletic weight management context.
- Nutrition rehabilitation of undernourished children utilizing Spiruline and Misola
PubMed ID: 16430775
Large programmatic RCT in undernourished children: adding spirulina increased weight gain (context: nutritional rehabilitation).
- Effects of spirulina consumption on body weight, blood pressure, and endothelial function in overweight hypertensive Caucasians: a double-blind, placebo-controlled, randomized trial
PubMed ID: 26813468
Overweight hypertensive adults lost weight and BMI fell significantly after 3 months of 2 g/day spirulina.
- The effects of Spirulina Platensis on anthropometric indices, appetite, lipid profile and serum vascular endothelial growth factor (VEGF) in obese individuals: a randomized double blinded placebo controlled trial
PubMed ID: 28431534
1 g/day for 12 weeks in obese adults produced modest but statistically significant weight and appetite reductions.
- Effect of Arthrospira (Spirulina) maxima Supplementation and a Systematic Physical Exercise Program on the Body Composition and Cardiorespiratory Fitness of Overweight or Obese Subjects: A Double-Blind, Randomized, and Crossover Controlled Trial
PubMed ID: 30275428
4.5 g/day for 6 weeks reduced weight and body fat in overweight/obese men (additive with exercise) — robust short-term effect.
- Spirulina platensis effectively ameliorates anthropometric measurements and obesity-related metabolic disorders in obese or overweight healthy individuals: A randomized controlled trial
PubMed ID: 30219433
12-week trial during calorie restriction showed greater weight, waist and body-fat reductions with spirulina vs placebo.
- Hypolipidemic Effect of Arthrospira (Spirulina) maxima Supplementation and a Systematic Physical Exercise Program in Overweight and Obese Men: A Double-Blind, Randomized, and Crossover Controlled Trial
PubMed ID: 31067674
4.5 g/day trial showed modest BMI reductions along with lipid improvements in overweight/obese men.
- Impact of a 12-week High-Intensity Interval Training With Spirulina Supplementation on Insulin Resistance-Mediated by Apo-A, -B, and -J in Men With Obesity HIIT With Spirulina on Apolipoproteins
PubMed ID: 40123054
HIIT + spirulina study showed weight loss and improved metabolic markers, though exercise was a major driver.
Heart health (10)
- Benefits of Dietary Supplementation with Specific Silicon-Enriched Spirulina on Arterial Function in Healthy Elderly Individuals: A Randomized, Placebo-Controlled Trial
PubMed ID: 40077730
Silicon‑enriched spirulina RCT reduced aortic pulse wave velocity and systolic BP in older adults with elevated baseline aPWV/SBP—robust CV surrogate improvements in higher‑risk subgroup.
- Impact of a 12-week High-Intensity Interval Training With Spirulina Supplementation on Insulin Resistance-Mediated by Apo-A, -B, and -J in Men With Obesity HIIT With Spirulina on Apolipoproteins
PubMed ID: 40123054
HIIT + spirulina improved apolipoprotein profile (Apo‑A/Apo‑B) and metabolic risk factors, though exercise contributed significantly.
- A randomized, double-blind placebo-controlled add-on trial to assess the efficacy, safety, and anti-atherogenic effect of spirulina platensis in patients with inadequately controlled type 2 diabetes mellitus
PubMed ID: 36598187
Add‑on trial produced meaningful reductions in TC/LDL/TG and HbA1c, all favorable for cardiovascular risk.
- Antioxidant Efficacy of a Spirulina Liquid Extract on Oxidative Stress Status and Metabolic Disturbances in Subjects with Metabolic Syndrome
PubMed ID: 35877734
Reduced oxidative stress and improved HDL/TG in metabolic-syndrome subjects support cardiovascular risk reduction.
- Antihypertensive and antihyperlipemic of spirulina (Arthrospira platensis) sauce on patients with hypertension: A randomized triple-blind placebo-controlled clinical trial
PubMed ID: 34542204
Triple-blind RCT using spirulina-containing salad dressing lowered systolic/diastolic BP and improved lipids in hypertensive patients.
- Hypolipidemic Effect of Arthrospira (Spirulina) maxima Supplementation and a Systematic Physical Exercise Program in Overweight and Obese Men: A Double-Blind, Randomized, and Crossover Controlled Trial
PubMed ID: 31067674
Sizeable drops in TC and LDL-C in overweight/obese men support improved cardiometabolic profile.
- Spirulina maxima improves insulin sensitivity, lipid profile, and total antioxidant status in obese patients with well-treated hypertension: a randomized double-blind placebo-controlled study
PubMed ID: 28617537
Improvements in LDL-C, insulin sensitivity and TAS in obese hypertensive patients indicate cardiovascular risk benefits.
- Effects of spirulina consumption on body weight, blood pressure, and endothelial function in overweight hypertensive Caucasians: a double-blind, placebo-controlled, randomized trial
PubMed ID: 26813468
Overweight hypertensives had significant systolic BP reduction and improved arterial stiffness after 3 months.
- Effects of Spirulina platensis supplementation on lipid profile in HIV-infected antiretroviral naïve patients in Yaounde-Cameroon: a randomized trial study
PubMed ID: 25496727
Major improvements in atherogenic lipids in a large HIV cohort support cardiovascular risk reduction.
- A randomized double-blind, placebo-controlled study to establish the effects of spirulina in elderly Koreans
PubMed ID: 18714150
Cholesterol reductions in elderly trial support CV health to a moderate extent.
Vitality (7)
- Spirulina platensis versus silymarin in the treatment of chronic hepatitis C virus infection. A pilot randomized, comparative clinical trial
PubMed ID: 22497849
Chronic hepatitis C pilot: spirulina improved ALT and quality‑of‑life measures vs silymarin.
- The effect of Spirulina platensis versus soybean on insulin resistance in HIV-infected patients: a randomized pilot study
PubMed ID: 22254118
In HIV patients, spirulina improved insulin sensitivity and preserved lean mass—markers of metabolic/functional vitality.
- Nutrition rehabilitation of undernourished children utilizing Spiruline and Misola
PubMed ID: 16430775
Improved anthropometrics and nutritional status in undernourished children when spirulina was added.
- Effects of Spirulina platensis supplementation on lipid profile in HIV-infected antiretroviral naïve patients in Yaounde-Cameroon: a randomized trial study
PubMed ID: 25496727
Large HIV trial showed major lipid improvements that could contribute to overall health.
- Effects of spirulina consumption on body weight, blood pressure, and endothelial function in overweight hypertensive Caucasians: a double-blind, placebo-controlled, randomized trial
PubMed ID: 26813468
Weight loss and lower blood pressure in overweight hypertensives support general health/vitality.
- Multiple micronutrient supplementation using spirulina platensis and infant growth, morbidity, and motor development: Evidence from a randomized trial in Zambia
PubMed ID: 30759117
In infants, Spirulina-fortified porridge reduced respiratory morbidity and improved motor milestone acquisition — benefits to early-life vitality/development.
- A randomized, double-blind placebo-controlled add-on trial to assess the efficacy, safety, and anti-atherogenic effect of spirulina platensis in patients with inadequately controlled type 2 diabetes mellitus
PubMed ID: 36598187
Add‑on to metformin improved HbA1c and lipids substantially, outcomes that support broader health and vitality.
Cholesterol (9)
- Hypolipidemic Effect of Arthrospira (Spirulina) maxima Supplementation and a Systematic Physical Exercise Program in Overweight and Obese Men: A Double-Blind, Randomized, and Crossover Controlled Trial
PubMed ID: 31067674
4.5 g/day for 6 weeks produced sizeable, consistent reductions in total and LDL cholesterol in overweight/obese men (RCT crossover).
- Antihypertensive and antihyperlipemic of spirulina (Arthrospira platensis) sauce on patients with hypertension: A randomized triple-blind placebo-controlled clinical trial
PubMed ID: 34542204
Functional-food RCT in hypertensive patients lowered total and LDL cholesterol and triglycerides over 8 weeks.
- Antioxidant Efficacy of a Spirulina Liquid Extract on Oxidative Stress Status and Metabolic Disturbances in Subjects with Metabolic Syndrome
PubMed ID: 35877734
Phycocyanin-rich extract RCT increased HDL and decreased triglycerides in metabolic-syndrome subjects.
- A randomized, double-blind placebo-controlled add-on trial to assess the efficacy, safety, and anti-atherogenic effect of spirulina platensis in patients with inadequately controlled type 2 diabetes mellitus
PubMed ID: 36598187
Add‑on to metformin produced large, significant reductions in TC, LDL‑C and TG with a small increase in HDL‑C over 3 months.
- Impact of a 12-week High-Intensity Interval Training With Spirulina Supplementation on Insulin Resistance-Mediated by Apo-A, -B, and -J in Men With Obesity HIIT With Spirulina on Apolipoproteins
PubMed ID: 40123054
HIIT + spirulina improved apolipoprotein profile (↑Apo‑A, ↓Apo‑B) though exercise was a major contributor.
- The effects of Spirulina Platensis on anthropometric indices, appetite, lipid profile and serum vascular endothelial growth factor (VEGF) in obese individuals: a randomized double blinded placebo controlled trial
PubMed ID: 28431534
1 g/day for 12 weeks reduced total cholesterol modestly in obese adults.
- Effects of Spirulina platensis supplementation on lipid profile in HIV-infected antiretroviral naïve patients in Yaounde-Cameroon: a randomized trial study
PubMed ID: 25496727
Large randomized trial in ART‑naïve HIV patients showed dramatic reductions in TC/LDL and large HDL increases with 10 g/day spirulina.
- A randomized double-blind, placebo-controlled study to establish the effects of spirulina in elderly Koreans
PubMed ID: 18714150
Elderly RCT observed significant total cholesterol reductions vs placebo (sex‑specific effects reported).
- Spirulina maxima improves insulin sensitivity, lipid profile, and total antioxidant status in obese patients with well-treated hypertension: a randomized double-blind placebo-controlled study
PubMed ID: 28617537
Obese hypertensive RCT reported significant LDL-C decreases along with metabolic improvements.
Nutrition source (6)
- Algae Ingestion Increases Resting and Exercised Myofibrillar Protein Synthesis Rates to a Similar Extent as Mycoprotein in Young Adults
PubMed ID: 37716611
Single bolus study confirms spirulina provides bioavailable amino acids and stimulates MyoPS, supporting nutrient richness (protein).
- Nutrition rehabilitation of undernourished children utilizing Spiruline and Misola
PubMed ID: 16430775
Programmatic RCT showed spirulina (10 g/day) added to meals improved weight and z‑score gains in undernourished children—nutritional benefit.
- [Selenium deficiency and its dietary correction in patients with irritable bowel syndrome and chronic catarrhal colitis]
PubMed ID: 17674518
Spirulina‑based selenium supplement corrected selenium insufficiency in IBS/colitis patients (product was Se‑enriched).
- Spirulina as a daily nutritional supplement of young pre-school Cambodian children of deprived settings: a single-blinded, placebo-controlled, cross-over trial
PubMed ID: 36476193
2 g/day in preschool children modestly reduced anemia and tended to improve weight — evidence of nutritional benefit in undernourished populations.
- [Use of spirulina supplement for nutritional management of HIV-infected patients: study in Bangui, Central African Republic]
PubMed ID: 19499738
Large HIV trial reported higher blood protein (protidemia) with spirulina plus food aid, consistent with nutrient supply.
- Multiple micronutrient supplementation using spirulina platensis and infant growth, morbidity, and motor development: Evidence from a randomized trial in Zambia
PubMed ID: 30759117
Spirulina-fortified porridge provided nutrients that reduced cough and aided motor milestone acquisition in infants — practical nutrient benefit.
Immune support (6)
- Effect of high-dose Spirulina supplementation on hospitalized adults with COVID-19: a randomized controlled trial
PubMed ID: 38655258
Hospitalized COVID open‑label trial showed increased IFN‑γ, decreased IL‑6 and dramatic clinical improvements (immune‑related), though design limitations exist.
- Multiple micronutrient supplementation using spirulina platensis and infant growth, morbidity, and motor development: Evidence from a randomized trial in Zambia
PubMed ID: 30759117
Large infant RCT showed reduced cough incidence with Spirulina-fortified porridge, indicating respiratory immune benefits.
- Clinical comparison of the efficacy of spirulina platensis and cetirizine for treatment of allergic rhinitis
PubMed ID: 32773785
Allergic rhinitis RCT improved nasal symptoms and reduced IL‑4, indicating immune/ allergic modulation.
- Effects on Spirulina Supplementation on Immune Cells' Parameters of Elite College Athletes
PubMed ID: 36297029
In athletes, 3 g/day maintained leukocyte and monocyte proportions during heavy training — supportive of immune resilience.
- Arthrospira Enhances Seroclearance in Patients with Chronic Hepatitis B Receiving Nucleos(t)ide Analogue through Modulation of TNF-α/IFN-γ Profile
PubMed ID: 35889747
In hepatitis B patients spirulina increased IFN‑γ and reduced qHBsAg in some groups—direct immune modulation evidence.
- A randomized double-blind, placebo-controlled study to establish the effects of spirulina in elderly Koreans
PubMed ID: 18714150
Elderly RCT increased IL‑2 and decreased IL‑6, indicating modulation of immune markers.
Antioxidant (5)
- Antioxidant Efficacy of a Spirulina Liquid Extract on Oxidative Stress Status and Metabolic Disturbances in Subjects with Metabolic Syndrome
PubMed ID: 35877734
Phycocyanin-rich extract RCT lowered urinary isoprostanes (oxidative stress marker) vs placebo in metabolic-syndrome subjects.
- Effects of Spirulina supplementation in patients with ulcerative colitis: a double-blind, placebo-controlled randomized trial
PubMed ID: 38424572
RCT in ulcerative colitis showed significant increases in total antioxidant capacity and decreased MDA (lipid peroxidation).
- Spirulina maxima improves insulin sensitivity, lipid profile, and total antioxidant status in obese patients with well-treated hypertension: a randomized double-blind placebo-controlled study
PubMed ID: 28617537
Obese hypertensive RCT reported increased total antioxidant status (TAS) alongside metabolic benefits.
- The effect of Arthrospira platensis capsules on CD4 T-cells and antioxidative capacity in a randomized pilot study of adult women infected with human immunodeficiency virus not under HAART in Yaoundé, Cameroon
PubMed ID: 25057105
Small trial reported increased total antioxidant capacity (TAOS) with spirulina.
- A randomized double-blind, placebo-controlled study to establish the effects of spirulina in elderly Koreans
PubMed ID: 18714150
Elderly RCT: improved total antioxidant status and SOD activity vs placebo.
Detoxification (4)
- The Effect of Eight Weeks of Aerobic Exercise and Spirulina Supplementation on Some Liver Enzymes, Body Composition, and Cardiorespiratory Fitness in Overweight and Obese Adult Women
PubMed ID: 40304664
Spirulina (with/without exercise) led to improvements in ALT/AST in overweight/obese women, indicating improved hepatic markers.
- Arthrospira Enhances Seroclearance in Patients with Chronic Hepatitis B Receiving Nucleos(t)ide Analogue through Modulation of TNF-α/IFN-γ Profile
PubMed ID: 35889747
In chronic hepatitis B patients spirulina lowered HBsAg (in subgroup), raised IFN‑γ and reduced liver stiffness—consistent with improved liver health/function.
- Efficacy of spirulina extract plus zinc in patients of chronic arsenic poisoning: a randomized placebo-controlled study
PubMed ID: 16615668
Randomized trial (spirulina + zinc) markedly increased urinary arsenic excretion and improved skin lesions.
- Effect of Spirulina maxima Supplementation on Calcium, Magnesium, Iron, and Zinc Status in Obese Patients with Treated Hypertension
PubMed ID: 26779620
3‑month RCT showed spirulina lowered serum iron—consistent with an iron‑binding/chelating effect.
Mental clarity (3)
- Multiple Micronutrient Supplementation Using Spirulina platensis during the First 1000 Days is Positively Associated with Development in Children under Five Years: A Follow up of A Randomized Trial in Zambia
PubMed ID: 30934863
Follow-up of child trial showed persistent improvements in motor and language/personal-social scores — evidence of mental/developmental gains after early supplementation.
- The effects of spirulina intake on clinical and metabolic parameters in Alzheimer's disease: A randomized, double-blind, controlled trial
PubMed ID: 36861852
12‑week RCT in Alzheimer's patients produced small but statistically significant improvements in MMSE and reductions in hs‑CRP and insulin resistance markers.
- The Effects of Spirulina maxima Extract on Memory Improvement in Those with Mild Cognitive Impairment: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial
PubMed ID: 36145090
12‑week RCT in older adults with MCI showed significant improvements in visual learning and working memory — direct cognitive benefit.
Nutrient uptake (3)
- Spirulina as a daily nutritional supplement of young pre-school Cambodian children of deprived settings: a single-blinded, placebo-controlled, cross-over trial
PubMed ID: 36476193
2 g/day in Cambodian preschoolers significantly reduced anemia prevalence — field evidence of improving iron/hemoglobin status.
- Effect of Spirulina maxima Supplementation on Calcium, Magnesium, Iron, and Zinc Status in Obese Patients with Treated Hypertension
PubMed ID: 26779620
3‑month RCT in obese hypertensives showed a clear and significant decrease in serum iron with spirulina.
- The effects of spirulina supplementation on serum iron and ferritin, anemia parameters, and fecal occult blood in adults with ulcerative colitis: A randomized, double-blinded, placebo-controlled trial
PubMed ID: 37739734
RCT in ulcerative colitis found spirulina 1 g/day improved serum iron and MCV and prevented declines in RBC/hematocrit vs placebo.
Mood balance (2)
- The effects of spirulina (Arthrospira platensis) supplementation on anthropometric indices, blood pressure, sleep quality, mental health, fatigue status and quality of life in patients with ulcerative colitis: A randomised, double-blinded, placebo-controlled trial
PubMed ID: 34107141
In ulcerative colitis patients, 8 weeks of 1 g/day spirulina modestly reduced stress and improved quality of life — mood-related outcomes.
- Spirulina platensis versus silymarin in the treatment of chronic hepatitis C virus infection. A pilot randomized, comparative clinical trial
PubMed ID: 22497849
Chronic hepatitis C trial reported improved quality‑of‑life and sexual function scores with spirulina (mood/psychosocial benefit).
Energy & Fatigue (2)
- Spirulina supplementation and circuit resistance training (CRT) reduce serum asprosin and appetite and improve energy balance in men with obesity and overweight
PubMed ID: 39259404
In overweight men, spirulina was associated with increased reported energy and increased energy expenditure alongside appetite/hormone changes.
- Effect of Arthrospira (Spirulina) maxima Supplementation and a Systematic Physical Exercise Program on the Body Composition and Cardiorespiratory Fitness of Overweight or Obese Subjects: A Double-Blind, Randomized, and Crossover Controlled Trial
PubMed ID: 30275428
Six-week trial (4.5 g/day) improved VO2max and time-to-fatigue in overweight/obese men — supports increased functional energy/endurance.
Skin appearance (2)
- Efficacy of Spirulina 500 mg vs Triamcinolone Acetonide 0.1% for the Treatment of Oral Lichen Planus: A Randomized Clinical Trial
PubMed ID: 35986466
Adjunctive spirulina reduced lesion size and pain in oral lichen planus — shows anti-inflammatory/dermatologic benefit in mucocutaneous disease.
- Efficacy of spirulina extract plus zinc in patients of chronic arsenic poisoning: a randomized placebo-controlled study
PubMed ID: 16615668
Skin lesion scores (melanosis/keratosis) improved in arsenic‑poisoned patients receiving spirulina+zinc.
Exercise recovery (2)
- Algae Ingestion Increases Resting and Exercised Myofibrillar Protein Synthesis Rates to a Similar Extent as Mycoprotein in Young Adults
PubMed ID: 37716611
Tracer‑based RCT showed a single spirulina bolus raised plasma amino acids and stimulated myofibrillar protein synthesis at rest and after exercise similar to a high‑quality fungal protein.
- Spirulina supplementation during gradual weight loss in competitive wrestlers
PubMed ID: 33715648
Wrestlers lost more fat and had decreased myostatin during weight-loss period, suggesting favorable muscle-related signaling.
Allergy relief (1)
- Clinical comparison of the efficacy of spirulina platensis and cetirizine for treatment of allergic rhinitis
PubMed ID: 32773785
Randomized trial in allergic rhinitis showed marked clinical symptom improvements (rhinorrhea, nasal obstruction) and IL‑4 reductions with 2 g/day for 2 months.
Endurance (1)
- Effect of Arthrospira (Spirulina) maxima Supplementation and a Systematic Physical Exercise Program on the Body Composition and Cardiorespiratory Fitness of Overweight or Obese Subjects: A Double-Blind, Randomized, and Crossover Controlled Trial
PubMed ID: 30275428
6-week supplementation improved VO2max and time-to-fatigue in overweight/obese men, particularly with exercise.
Digestive support (1)
- Spirulina Platensis Attenuates Rebound Dyspeptic Symptoms After Proton Pump Inhibitors' Discontinuation: Phase 2 Placebo-controlled Trial
PubMed ID: 38401078
Phase 2 RCT showed spirulina reduced the likelihood of rebound dyspepsia after stopping PPIs vs placebo.
Similar by evidence
Supplements the same benefits carry qualifying findings for — a fact about the evidence graph, not a recommendation to swap.
Products with Spirulina
Search all1955 products whose verified label declares Spirulina — not every bottle that mentions it in a title.
Being studied right now
Recruiting clinical trials registered on ClinicalTrials.gov. A trial in progress has no result yet — this is what the field is asking, not what it found.