Nutrient dense foods
Pro Research Analysisby 
Searched over 200M research papers
Defining Nutrient Dense Foods and Nutrient Profiling
Nutrient dense foods are those that provide a high amount of essential nutrients relative to their calorie content. Nutrient profiling models, such as the Nutrient-Rich Foods (NRF) family, are used to rate foods based on their content of beneficial nutrients (like protein, fiber, vitamins, and minerals) and nutrients to limit (such as saturated fat, added sugar, and sodium) per serving or per calorie. These models help consumers and policymakers identify foods that contribute most to a healthy diet and can be used as the basis for dietary recommendations and guidelines Drewnowski2014Drewnowski2005.
Key Nutrients in Nutrient Dense Foods
The most commonly encouraged nutrients in nutrient density models include protein, fiber, vitamins A, C, D, and E, calcium, iron, potassium, magnesium, zinc, and folate. Foods that are high in these nutrients and low in nutrients to limit are considered nutrient dense. For example, the NRF9.3 index uses nine beneficial nutrients and three nutrients to limit to score foods, with higher scores indicating more nutrient-rich options Drewnowski2014Lara-Arévalo2024Drewnowski2021.
Examples of Nutrient Dense Foods
Animal-source foods, such as lean meats, dairy, and eggs, often score high in nutrient density, especially when considering priority micronutrients like iron, zinc, calcium, and vitamin B12. However, certain plant-based foods, particularly indigenous vegetables and grains, can also be highly nutrient dense, providing significant amounts of protein and essential micronutrients. In West Africa, for example, indigenous vegetables and grains were found to be more nutrient dense than non-indigenous varieties, highlighting the importance of local food sources in addressing micronutrient deficiencies Lara-Arévalo2024Melse-Boonstra2020Miller2023.
Health Benefits of Consuming Nutrient Dense Foods
Regular consumption of nutrient dense foods is associated with a range of health benefits. People who include more nutrient-rich foods in their diets report improved energy, weight management, satiety, focus, and overall health and wellbeing, with benefits observed both in the short and long term . In children, diets rich in nutrient dense foods, such as vegetables, eggs, and legumes, have been linked to better cognitive performance, particularly in reading achievement .
Nutrient Density, Diet Quality, and Affordability
Nutrient dense foods are linked to higher overall diet quality, as measured by indices like the Healthy Eating Index (HEI). Replacing less nutrient-rich foods with more nutrient-dense options, even partially, can significantly improve diet quality scores Drewnowski2014Drewnowski2021. However, nutrient dense foods often come with higher energy costs, making them less accessible to low-income populations. This economic barrier highlights the need for affordable nutrient density metrics and policies that make healthy foods more accessible Maillot2007Drewnowski2017.
Bioavailability and the Food Matrix
The health impact of nutrient dense foods also depends on the bioavailability of their nutrients, which can be influenced by the food matrix—the combination of nutrients and other components within whole foods. For example, dairy products and certain fruits and vegetables provide nutrients in forms that are more easily absorbed by the body. Understanding these interactions is important for designing diets that maximize nutrient absorption and health benefits Melse-Boonstra2020Miller2023.
Conclusion
Nutrient dense foods are essential for promoting health, preventing deficiencies, and improving overall diet quality. While both animal and plant-based foods can be nutrient rich, local and indigenous foods often provide unique benefits. Despite their higher cost, increasing the intake of nutrient dense foods can lead to significant health improvements, making it important to develop strategies and policies that enhance their affordability and accessibility for all populations Drewnowski2014Lara-Arévalo2024Bell2019+7 MORE.
Sources and full results
Most relevant research papers on this topic