Exploring Astaxanthin's Impact on Cardiovascular Health in Prediabetic Individuals

Exploring Astaxanthin's Impact on Cardiovascular Health in Prediabetic Individuals


The intersection of prediabetes and Dyslipidemia presents a health challenge that demands innovative approaches. In this quest, astaxanthin, a naturally occurring compound, emerges as a potential ally. This study delves into the effects of astaxanthin treatment on lipids, cardiovascular disease (CVD) markers, glucose tolerance, insulin action, and inflammation in individuals navigating the intricate landscape of prediabetes and dyslipidemia.

Unravelling the Study Design

Adult participants, grappling with dyslipidemia and prediabetes, formed the cohort of this study (n = 34). The research design encompassed a comprehensive assessment, including baseline blood draw, an oral glucose tolerance test, and a one-step hyperinsulinaemic-euglycaemic clamp. Subsequently, participants were randomized into two groups (n = 22 treated, 12 placebo), receiving either astaxanthin at 12 mg daily or a placebo for a duration of 24 weeks. The study meticulously tracked changes through repeated assessments at 12 and 24 weeks.

Compelling Results Unveiled

After 24 weeks, the astaxanthin treatment group witnessed significant improvements. Notably, low-density lipoprotein decreased by −0.33 ± 0.11 mM, and total cholesterol showed a decrease of −0.30 ± 0.14 mM (both P < .05). Astaxanthin exhibited its potential by reducing levels of CVD risk markers such as fibrinogen (−473 ± 210 ng/mL), L-selectin (−0.08 ± 0.03 ng/mL), and fetuin-A (−10.3 ± 3.6 ng/mL) (all P < .05).

Insights into Insulin Action

While the study did not reach statistical significance in certain aspects, trends toward improvements in insulin-stimulated, whole-body glucose disposal were observed (+0.52 ± 0.37 mg/m2/min, P = .078). Similarly, fasting [insulin] (−5.6 ± 8.4 pM, P = .097) and HOMA2-IR (−0.31 ± 0.16, P = .060) displayed positive trends, hinting at improved insulin action. Noteworthy is the fact that the placebo group did not exhibit consistent significant differences from baseline in any of these outcomes.

Conclusive Insights and Safety Assurance

In conclusion, though the primary endpoint did not reach the pre-specified significance level, the data suggest that astaxanthin, as an over-the-counter supplement, is safe and exhibits potential benefits. Notably, it improves lipid profiles and addresses markers of CVD risk in individuals dealing with prediabetes and dyslipidemia. The study reinforces the safety profile of astaxanthin, as evidenced by its well-tolerated nature with no clinically significant adverse events reported.

Implications and Future Endeavours

As we absorb the implications of this study, it beckons further exploration into the nuanced interactions between astaxanthin and cardiovascular health in prediabetic individuals. The potential for improving lipid profiles opens avenues for broader applications, urging the scientific community to embark on future investigations. This study lays a foundation, and the journey towards a comprehensive understanding of astaxanthin's role in cardiovascular health continues.

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Reference: Full Article - ^ Ciaraldi TP, Boeder SC, Mudaliar SR, Giovannetti ER, Henry RR, Pettus JH. Astaxanthin, a natural antioxidant, lowers cholesterol and markers of cardiovascular risk in individuals with prediabetes and dyslipidemia. Diabetes Obes Metab. 2023; 25(7): 1985-1994. doi:10.1111/dom.15070


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