I've been using a lutein supplement with 40 mg of lutein and am concerned that this dose may be too high. Are there known harmful side-effects?
Although some products do contain high amounts of lutein, lower amounts are typically used to improve vision in people with atrophic age-related macular degeneration. The lower amounts have been found to be effective, as well as safe, in clinical studies. As with other anti-oxidants, “more” is not necessarily “better” when taking lutein. There is also a concern with long-term supplementation, especially in smokers. Get the details about lutein dosage and safety, along with our test reviews of products, in the ConsumerTips section of the Lutein and Zeaxanthin Supplements Review>>