But here’s some really good news: Not only are there everyday foods that lower triglycerides fast, all of them are pretty delicious! Meanwhile, high triglycerides cause particles of bad cholesterol to become smaller, denser and more likely to penetrate artery walls; high triglycerides are also a sign of metabolic issues like prediabetes and fatty liver, which independently drive heart risks. Dr. Tordini says prescription medication to lower triglycerides can be life-saving, and you should always work with your doctor to find the best treatment plan for you. So it’s no surprise they’re the foods proven to lower triglycerides the most and fastest—up to 66 percent in three to five weeks, according to research in the journal Circulation. QuinoaWhile most foods that lower triglycerides fast are low in carbs, quinoa is a starchy exception.