Health Research

Why Health Research?

The CWC supports nutrition science and new scientific knowledge that contributes to understanding the unique health and wellness benefits associated with consuming California walnuts.

These scientific contributions are necessary to provide new evidence supporting the development of dietary recommendations worldwide. Evolving health research is also important in assessing the state of the science, review of needs and gaps, and establishing a strong scientific foundation aimed at improving public health.

While the CWC does provide funds and/or walnuts for various projects, all studies are conducted independently by researchers who design the experiments, interpret the results and present evidence-based conclusions.

$17 Million Investment

The California Walnut Commission (CWC) Health Research Program was created to extend the understanding and knowledge of the nutritional value of walnuts and explore the role walnuts play in a healthy diet. We are committed to the scientific integrity of industry funded research. Scientific research supported by the CWC is often cited by leading food and nutrition groups and associations as a model for whole foods research.


Institutions and Universities




Peer-reviewed Publications

Health Research Areas of Focus

  • Body Weight & Composition
  • Cancer
  • Heart Health
  • Diabetes
  • Cognitive Health
  • Reproductive Health
  • Metabolic Health
  • Gut Health
  • and many more

Nutrient Profile

California walnuts are a nutrient-dense food that can fit into a number of healthy eating patterns. Current research efforts are underway to better understand the role of walnuts in supporting health, as well as their contribution to various healthy lifestyles, including needs for specific populations and healthy dietary patterns.

Due to the evidence supporting the cardiovascular benefits of walnuts, the U.S. Food and Drug Administration approved one of the first qualified health claims for a whole food in March of 2004: “Supportive but not conclusive research shows that eating 1.5 ounces of walnuts per day, as part of a low saturated fat and low cholesterol diet, and not resulting in increased caloric intake may reduce the risk of coronary heart disease.”

Walnuts and Dietary Guidance

Nutrition research has contributed to the evolving understanding of the health benefits of walnuts.
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The 2015-2020 Dietary Guidelines for Americans encourage a shift from current eating patterns to a healthy eating pattern that includes nutrient-dense foods and beverages in place of less healthy choices. Among other things, a healthy eating pattern includes a variety of protein foods, including nuts and seeds along with seafood, lean meats and poultry, eggs, legumes, and soy products.

Health Research Communications

Research information conducted with the help of the CWC is vigorously shared with consumers and health media.
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