Doctorseaweed.com appears to be a legitimate website offering natural seaweed supplements. The site features a variety of products designed to support wellness and health, including supplements for energy, thyroid health, immune support, and more. The website provides detailed information about the ingredients and benefits of each product, and there are numerous positive customer reviews highlighting the effectiveness of the supplements. Additionally, the site offers a 30-day money-back guarantee and next-day delivery on orders, which further supports its legitimacy.