Microplastics in drinking water are still being studied, but research suggests they may accumulate in the body and potentially contribute to inflammation, oxidative stress, gut microbiome disruption, and possible hormone (endocrine) interference, though clear long-term human health outcomes are not fully proven yet. Some studies indicate they could irritate the digestive system or carry toxic chemicals that may affect metabolism and immune balance over time, but evidence in humans is still limited. To reduce exposure, people can use high-quality water filters (like reverse osmosis or activated carbon), avoid drinking from single-use plastic bottles, store water in glass or stainless steel, and avoid heating plastic containers, which can release more particles. Overall, while risks are still being researched, reducing plastic exposure in drinking water is considered a safe and practical step for long-term health protection.