Astaxanthin is a naturally occurring carotenoid that has been growing in popularity due to its numerous health benefits. It is found naturally in microalgae, seafood, and certain plants and fruits.

What are the potential side effects of taking astaxanthin? Can you take too much? Let’s dive into this topic to help you make an informed decision about whether or not to include astaxanthin in your diet.

Does Astaxanthin Increase Estrogen Levels?

Research on the effects of astaxanthin on estrogen levels has revealed mixed results, with some studies showing it can increase estrogen levels while others have shown no effect.

The reason for this discrepancy may be due to differences in study design, such as dose size and type of participant. It is important to note that there is currently no scientific evidence to suggest that astaxanthin increases estrogen levels in humans.  

That said, if you are pregnant or breastfeeding, it is best to consult with a medical professional before taking astaxanthin supplements.

Can You Take Too Much Astaxanthin?

The daily recommended dose of astaxanthin varies from person to person depending on age and health status but is generally considered safe when taken within the recommended dosage range (1-8mg per day).

However, some people may experience gastrointestinal issues if they take more than 8mg per day for extended periods of time.

Also, astaxanthin can interact with certain medications such as blood thinners, so it's important to speak with a doctor before starting any supplement regimen.

Additionally, pregnant or breastfeeding women should avoid taking astaxanthin supplements without speaking with their doctor first since there is not enough research on its safety during pregnancy or lactation at this time.


In conclusion, while there are potential side effects associated with taking astaxanthin supplements—such as gastrointestinal issues and drug interactions—it is generally considered safe when taken within the recommended dosage range (1-8mg per day).

That said, it's always best practice to consult with a doctor before beginning any new supplement regimen—especially if you're pregnant or breastfeeding—to ensure your safety and well-being!

And, as always, keep on reading...

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