This Carotenoid Supports Heart Health

by Irfan Qureshi, ND

Astaxanthin, a dark red pigment belonging to the carotenoid family, contributes to the striking colors seen in an array of plants and animals. Astaxanthin is a powerful antioxidant essential to a number of biological processes, including the support of optimal macular function as well as supporting healthy skin and immune function. In addition, several studies have shown astaxanthin to be a key emerging nutrient for cardiovascular health. An important benefit proves to be its ability to ease the effects of lipid peroxidation caused by free radicals. Several studies have identified the important role astaxanthin plays in cell protection, and it has been shown to be significantly more potent than other carotenoids at easing the effects of oxidative stress. Excessive free radical damage can impact heart health and function, and astaxanthin’s potent antioxidant power allows for blood vessels to remain healthy, a key factor for maintaining optimal cardiovascular function.

A randomized, double-blind study aimed to identify how astaxanthin prevents lipid peroxidation in vivo. The study analyzed the administration of an 8 mg dose of astaxanthin or a placebo to 40 healthy young men over 12 weeks. In comparison to the placebo group, study subjects who were administered the daily 8 mg dose of astaxanthin saw a statistically significant reduction in levels of plasma hydroxyl fatty acids, a byproduct of oxidized polyunsaturated linolenic and linoleic acids. These results highlight the beneficial effect of daily astaxanthin supplementation on providing protection from in vivo oxidation of fatty acids, an essential aspect of healthy heart function.

In further research, a double-blind, placebo-controlled study investigated astaxanthin’s role in promoting healthy blood lipid levels. The study assessed the random administration of four different doses (0, 6, 12 or 18 mg per day) of the carotenoid to 61 people with slight lipid imbalances over 12 weeks. Following the conclusion of the study, those administered the two highest dosages of astaxanthin (12 and 18 mg per day) saw the highest decrease in triglyceride levels, a decrease of 25 and 24 percent. Additionally, there was an increase of HDL levels by 10 and 15 percent for those receiving 6 and 12 mg per day, respectively. Overall, astaxanthin was shown to be of incredible value for maintaining healthy heart function by way of protecting against lipid peroxidation and helping to manage healthy and optimal levels of HDL and triglycerides.