International Journal of Aquaculture, 2025, Vol.15, No.5, 248-254 http://www.aquapublisher.com/index.php/ija 252 polysaccharide can slow down the formation of atherosclerotic plaques and improve pathological states such as abnormal glycolipid metabolism (Figure 2) (Liu et al., 2019). These findings support the positive impact of seaweed on cardiovascular and immune health from different perspectives. Figure 2 Possible mechanism in the anti-cancer activity of porphyran and carrageenan (Adopted from Liu et al., 2019) 6.3 Cross-cultural comparison: differences in seaweed consumption in East Asia and Western countries East Asian countries have traditionally had high intake of seaweed, while Western countries have not started to accept seaweed foods such as seaweed until recent years. This difference makes East Asian population more accessible to the unique nutritional and health benefits that seaweed provides. The study also found that Asian immigrants who maintain high intake of seaweed have better health indicators than pure Western dieters (Bouga and Combet, 2015). The consumption differences of seaweed in different cultural contexts provide an interesting perspective for nutrition and health research. With the popularization of global health concepts and the development of marine food, seaweed is expected to benefit more people in different regions from their nutritional and health care value. 7 Conclusions and Prospects Nagano has excellent nutritional value and extensive health benefits. Its rich in protein, dietary fiber, vitamins and minerals provide important nutritional supplements for humans; unique functional ingredients such as polyphenols, phycobili protein and seaweed polysaccharides give seaweed significant antioxidant, anti-inflammatory, immune regulation and other biological activities, reflecting its comprehensive value as a natural functional food (Kumari et al., 2022). The study of seaweed highlights the great potential of marine resources in improving human nutrition and health. In the future, scientific interpretation of the nutritional effects of traditional foods should be strengthened and incorporated into public nutrition strategies. For example, moderate intake of seaweed is recommended in dietary guidelines to improve the nutritional and healthy level of the population. There is still broad room for in-depth research on seaweed. It is recommended to focus on the mechanism of action of active ingredients of seaweed (such as molecular-level antioxidant and immune regulation pathways), evaluate the impact of long-term consumption of seaweed on the risk of chronic diseases, and develop innovative applications of seaweed in the fields of functional food and biomedicine. Through continuous research and development, seaweed, a traditional marine ingredient, is expected to play a greater role in human health protection in the new era. Acknowledgments During the completion of this study, the mentor's guidance and colleagues' assistance played an important role. We would also like to thank the reviews of the two peers for making the article more perfect.
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