Ascophyllum Nodosum Powder
Also known as: Ascophyllum nodosum, Knotted wrack, Norwegian kelp
Overview
Ascophyllum nodosum, commonly known as knotted wrack or Norwegian kelp, is a brown seaweed prevalent in the North Atlantic. It is utilized both as a dietary supplement and as a biostimulant in agriculture. As a supplement, it is explored for its potential to influence blood glucose levels and lipid profiles, although research is still emerging. In agriculture, A. nodosum extracts are valued for their ability to enhance plant growth and stress tolerance. While A. nodosum is a specific species, much of the research context comes from studies on brown seaweed in general. It is available in various forms, including powders and extracts, and its use is growing, particularly in sustainable agriculture practices. Further research is needed to fully elucidate its benefits and mechanisms of action in human health.
Benefits
Limited direct evidence exists specifically for Ascophyllum nodosum's human health benefits. However, research on brown seaweed suggests potential positive effects on plasma glucose homeostasis and a reduced risk of dyslipidemia. A systematic review and meta-analysis indicate that brown seaweed may reduce postprandial blood glucose levels and improve HbA1c. Another meta-analysis suggests that brown seaweed extracts may reduce the risk of dyslipidemia. In agriculture, A. nodosum extracts are known to enhance plant growth and stress tolerance, improving agricultural productivity. These benefits are primarily attributed to bioactive compounds present in brown seaweed, though specific effect sizes for A. nodosum are not well-documented in human studies.
How it works
The mechanism of action for Ascophyllum nodosum is not fully understood, but it is believed that its bioactive compounds interact with metabolic pathways related to glucose and lipid metabolism. These compounds may influence the gastrointestinal system and liver function, affecting nutrient absorption and metabolism. While specific molecular targets are not well-defined for A. nodosum, it is thought that it may modulate glucose uptake and lipid synthesis. The bioavailability of A. nodosum components is not extensively studied, but it is likely that the polysaccharides and polyphenols present play a role in its observed effects. Further research is needed to elucidate the precise mechanisms and pathways involved.
Side effects
Ascophyllum nodosum is generally considered safe when consumed in typical dietary amounts. Common side effects are not well-documented but may include mild gastrointestinal upset. Uncommon side effects could include potential allergic reactions in sensitive individuals. Rare side effects have not been reported. Due to its potential glucose-lowering effects, A. nodosum may interact with diabetes medications, requiring careful monitoring. Caution is advised for individuals with thyroid issues due to the iodine content in seaweed. Pregnant or breastfeeding women should consult with healthcare providers before using A. nodosum. It is important to source A. nodosum from reputable suppliers to ensure quality and minimize the risk of contamination.
Dosage
There is no established minimum effective dose, optimal dosage range, or maximum safe dose for Ascophyllum nodosum in humans. Dosage recommendations are not well-defined due to limited human studies. In agricultural applications, dosages vary depending on the specific crop and application method. A. nodosum is available as a powder or extract, and bioavailability may vary based on the preparation and individual factors. Due to the lack of established guidelines, it is crucial to consult with a healthcare provider before using A. nodosum as a supplement. Further research is needed to determine appropriate and safe dosages for various health applications.
FAQs
What are the potential benefits of Ascophyllum nodosum?
While research is limited, A. nodosum, as a brown seaweed, may positively affect blood glucose and lipid metabolism. Agricultural applications show enhanced plant growth and stress tolerance.
Are there any side effects associated with Ascophyllum nodosum?
It is generally considered safe, but potential side effects may include gastrointestinal upset or allergic reactions. Those with thyroid issues should exercise caution due to iodine content.
How should Ascophyllum nodosum be used?
Ensure proper sourcing and quality control. Consult with a healthcare provider before use, especially if you have existing health conditions or are taking medications.
Is Ascophyllum nodosum well-studied for human health benefits?
No, it is not well-studied for direct human health benefits. More research is needed to confirm its efficacy and safety for specific health applications.
Research Sources
- https://pmc.ncbi.nlm.nih.gov/articles/PMC10707744/ – This systematic review and meta-analysis investigates the effects of brown seaweed consumption on postprandial glycemic response and long-term glycemic control. The study found that brown seaweed consumption was associated with a significant reduction in postprandial blood glucose levels and improved HbA1c, suggesting potential benefits for glucose management.
- https://www.mdpi.com/1660-3397/21/4/220 – This meta-analysis examines the impact of brown seaweed extracts on dyslipidemia. The study suggests that brown seaweed extracts may reduce the risk of dyslipidemia by improving lipid profiles, although further research is needed to confirm these findings and identify the specific mechanisms involved.
- https://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0249053 – This study investigates the effects of Ascophyllum nodosum extract on gene expression and immune responses in broiler chickens. The results indicate that A. nodosum extract can modulate gene expression related to immune function, potentially enhancing the immune response in poultry.
- https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2019.00655/full – This review discusses the use of Ascophyllum nodosum extracts as biostimulants in agriculture. The review highlights the efficacy of A. nodosum extracts in enhancing plant growth and stress tolerance, contributing to improved agricultural productivity and sustainability.
- https://academic.oup.com/nutritionreviews/article/80/5/1194/6373531 – This review examines the effects of marine algae consumption on human health. The review discusses the potential benefits of marine algae, including brown seaweed, on various health outcomes, such as cardiovascular health and glucose metabolism, highlighting the need for further research to fully understand their mechanisms of action and clinical applications.
