Sargassum is a type of ocean seaweed that has been used in traditional medicine for centuries and contains compounds that may help fight inflammation, oxidative stress, viruses, and bacteria. Scientists have discovered that different Sargassum species produce nearly 200 different bioactive compounds with potential health benefits ranging from reducing arthritis symptoms to supporting immune function. While Sargassum can accumulate harmful heavy metals like arsenic from seawater, researchers have developed effective cleaning methods to remove these contaminants while preserving the beneficial compounds. This makes Sargassum a promising sustainable source of natural medicines and health supplements.