Dose per serving from research
5 study groups in 5 studies say how much Fucoxanthin participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 1 g to 2.5 g, 40% of 5 study groups.
| Daily dose | Study groups |
|---|---|
| 5 mg or less | 1 |
| 5 mg to 10 mg | 0 |
| 10 mg to 25 mg | 1 |
| 25 mg to 50 mg | 0 |
| 50 mg to 100 mg | 0 |
| 100 mg to 250 mg | 0 |
| 250 mg to 500 mg | 1 |
| 500 mg to 1 g | 0 |
| 1 g to 2.5 g | 2 |
Benefit Evidence
Research sources
Metabolism (4)
- Effects of Supplementation with a Microalgae Extract from Phaeodactylum tricornutum Containing Fucoxanthin on Cognition and Markers of Health in Older Individuals with Perceptions of Cognitive Decline
PubMed ID: 39275314
Older adults with subjective cognitive decline had improved insulin markers (fasting insulin, HOMA-IR/QUICKI), supporting metabolic benefits.
- Effects of Supplementation with Microalgae Extract from Phaeodactylum tricornutum (Mi136) to Support Benefits from a Weight Management Intervention in Overweight Women
PubMed ID: 38613023
Phaeodactylum extract improved resting fat oxidation and aerobic capacity in a diet+exercise trial, indicating metabolic shifts favoring fat use.
- The effects of Xanthigen in the weight management of obese premenopausal women with non-alcoholic fatty liver disease and normal liver fat
PubMed ID: 19840063
Large RCT of a fucoxanthin-containing product produced substantial weight loss and increased resting energy expenditure, strong metabolic signal (product combined with pomegranate oil).
- Fucoidan and Fucoxanthin Attenuate Hepatic Steatosis and Inflammation of NAFLD through Modulation of Leptin/Adiponectin Axis
PubMed ID: 33809062
6‑month RCT in NAFLD improved HOMA-IR and liver steatosis with combined fucoidan+fucoxanthin — metabolic benefits observed though combo product limits attribution.
Healthy aging (3)
- Effects of Supplementation with a Microalgae Extract from Phaeodactylum tricornutum Containing Fucoxanthin on Cognition and Markers of Health in Older Individuals with Perceptions of Cognitive Decline
PubMed ID: 39275314
Cognitive improvements and improved insulin sensitivity in older adults support aspects of healthy aging.
- Effects of Supplementation with Microalgae Extract from Phaeodactylum tricornutum (Mi136) to Support Benefits from a Weight Management Intervention in Overweight Women
PubMed ID: 38613023
Trial showed bone preservation, improved aerobic capacity and increased fat oxidation in overweight women — outcomes relevant to healthy aging.
- The effects of Xanthigen in the weight management of obese premenopausal women with non-alcoholic fatty liver disease and normal liver fat
PubMed ID: 19840063
Weight loss and increased REE in obese women may support metabolic health during aging, though product was a combination.
Energy & Fatigue (2)
- The effects of Xanthigen in the weight management of obese premenopausal women with non-alcoholic fatty liver disease and normal liver fat
PubMed ID: 19840063
Increased resting energy expenditure observed in the Xanthigen trial supports an effect on energy metabolism (though product combined).
- Effects of Supplementation with Microalgae Extract from Phaeodactylum tricornutum (Mi136) to Support Benefits from a Weight Management Intervention in Overweight Women
PubMed ID: 38613023
Improved VO2peak and fat oxidation suggest improved physiological stamina and ability to sustain exercise.
Fat burn (2)
- Effects of Supplementation with Microalgae Extract from Phaeodactylum tricornutum (Mi136) to Support Benefits from a Weight Management Intervention in Overweight Women
PubMed ID: 38613023
Increased resting fat oxidation indicates physiological promotion of fat utilization even if total weight loss vs placebo was not greater.
- The effects of Xanthigen in the weight management of obese premenopausal women with non-alcoholic fatty liver disease and normal liver fat
PubMed ID: 19840063
Xanthigen RCT produced substantial weight loss and reduced liver fat in obese women, consistent with body-fat reduction (combination product).
Weight management (2)
- Effects of Supplementation with Microalgae Extract from Phaeodactylum tricornutum (Mi136) to Support Benefits from a Weight Management Intervention in Overweight Women
PubMed ID: 38613023
No additional weight loss vs placebo but increased resting fat oxidation — mechanistic support for body-composition effects.
- The effects of Xanthigen in the weight management of obese premenopausal women with non-alcoholic fatty liver disease and normal liver fat
PubMed ID: 19840063
Large RCT with fucoxanthin-containing Xanthigen showed clinically meaningful weight loss and increased REE over 16 weeks (combination product).
Liver support (2)
- The effects of Xanthigen in the weight management of obese premenopausal women with non-alcoholic fatty liver disease and normal liver fat
PubMed ID: 19840063
Xanthigen (fucoxanthin+pomegranate oil) RCT reported reductions in liver fat in obese women — strong liver-fat signal though combination product limits sole attribution.
- Fucoidan and Fucoxanthin Attenuate Hepatic Steatosis and Inflammation of NAFLD through Modulation of Leptin/Adiponectin Axis
PubMed ID: 33809062
6‑month randomized clinical trial in NAFLD showed reductions in CAP (hepatic steatosis) and ALT vs placebo with the fucoidan+fucoxanthin supplement — strongest human liver evidence.
Blood sugar (2)
- Fucoidan and Fucoxanthin Attenuate Hepatic Steatosis and Inflammation of NAFLD through Modulation of Leptin/Adiponectin Axis
PubMed ID: 33809062
NAFLD 6‑month RCT lowered HOMA-IR significantly versus placebo (combo product) — supports improved insulin resistance.
- Effects of Supplementation with a Microalgae Extract from Phaeodactylum tricornutum Containing Fucoxanthin on Cognition and Markers of Health in Older Individuals with Perceptions of Cognitive Decline
PubMed ID: 39275314
Older adults RCT showed decreased fasting insulin and improved HOMA-IR/QUICKI over 12 weeks — clear glucose/insulin benefits.
Hormone balance (2)
- Fucoidan and Fucoxanthin Attenuate Hepatic Steatosis and Inflammation of NAFLD through Modulation of Leptin/Adiponectin Axis
PubMed ID: 33809062
Improved HOMA-IR in NAFLD trial indicates better insulin-mediated hormonal balance, though product was combined.
- Effects of Supplementation with a Microalgae Extract from Phaeodactylum tricornutum Containing Fucoxanthin on Cognition and Markers of Health in Older Individuals with Perceptions of Cognitive Decline
PubMed ID: 39275314
Demonstrated decreases in fasting insulin and improved HOMA-IR/QUICKI, indicating meaningful effects on insulin (a key metabolic hormone).
Endurance (1)
- Effects of Supplementation with Microalgae Extract from Phaeodactylum tricornutum (Mi136) to Support Benefits from a Weight Management Intervention in Overweight Women
PubMed ID: 38613023
Also improved resting fat oxidation (mechanism that can support endurance by sparing glycogen).
Mood balance (1)
- Effects of Dietary Supplementation of a Microalgae Extract Containing Fucoxanthin Combined with Guarana on Cognitive Function and Gaming Performance
PubMed ID: 37111136
Gamers trial reported some mood/vigor improvements with a microalgae extract containing fucoxanthin and guarana; mood signal present but confounded by caffeine.
Mental clarity (1)
- Effects of Supplementation with a Microalgae Extract from Phaeodactylum tricornutum Containing Fucoxanthin on Cognition and Markers of Health in Older Individuals with Perceptions of Cognitive Decline
PubMed ID: 39275314
Double-blind RCT in older adults with subjective cognitive decline reported better memory and attention over 12 weeks — direct cognitive benefit.
Inflammation (1)
- Fucoidan and Fucoxanthin Attenuate Hepatic Steatosis and Inflammation of NAFLD through Modulation of Leptin/Adiponectin Axis
PubMed ID: 33809062
NAFLD trial lowered ALT and hepatic steatosis (inflammatory liver markers) and improved HOMA-IR; intervention included fucoidan so attribution to FX alone is uncertain.
Similar by evidence
Supplements the same benefits carry qualifying findings for — a fact about the evidence graph, not a recommendation to swap.
Products with Fucoxanthin
Search all31 products whose verified label declares Fucoxanthin — not every bottle that mentions it in a title.