The portfolio diet has been around for more than 20 years, but only recently have more people taken on this heart-focused regimen. The little-known diet has been found to reduce cholesterol and the risk of cardiovascular disease (CVD), the leading cause of death in the U.S., responsible for over 683,000 deaths in 2024, according to the CDC. The key is to put your stock in plant fiber and protein while reducing animal-based foods.
What’s the portfolio diet? The diet was developed in 2003 by Dr. David Jenkins, a professor of nutritional sciences at the University of Toronto. It was named as such because it’s all about “spreading out your risks and benefits and trying to maximize” nutritional returns, said Jenkins to The New York Times. It “discourages foods from animal sources, particularly red and processed meat, high-fat dairy, and eggs, said Harvard Medical School. Instead, it prioritizes “viscous fiber, plant-based proteins, nuts, seeds, monounsaturated fats and phytosterols, also known as plant sterols.”
A diet rich in plant sterols, soy protein and viscous fibers could reduce levels of LDL cholesterol by approximately 30%, according to Jenkins’ original study. Since then, other research has corroborated the benefits. The portfolio diet is “associated with a lower risk of CVD, including CHD [coronary heart disease] and stroke, and a more favorable blood lipid and inflammatory profile,” said a 2023 study published in the journal Circulation. These results also held when analyzing a “national cohort of racially diverse adults in the U.S.,” said a 2025 study. It’s the “same effect as a first-generation statin,” said Meaghan E. Kavanagh, the lead author of the 2025 study, to Medscape.
How does it compare to other diets? The Mediterranean diet, the Dietary Approaches to Stop Hypertension (DASH) diet, and the pescatarian diet have also been found to have extensive health benefits. There are “significant overlaps” between the three, said the American Heart Association. All three “emphasize eating whole grains, fruits, vegetables, plant protein, nuts and plant oils.” Where they differ is that the portfolio diet specifically focuses on plant-based food, making it vegetarian and vegan-friendly.
What makes the portfolio diet favorable and sustainable is its “relative flexibility,” said the Times. “You can take your own diet and make a few small changes and see cardiovascular benefits,” said registered dietician Andrea Glenn to the American Heart Association. |