Actively Recruiting
Health Properties of Pecan Nut Consumption
Led by University of California, Davis · Updated on 2026-02-24
40
Participants Needed
1
Research Sites
106 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
The main goal of this clinical study is to see if consuming pecan nuts will result in improvements in overall body metabolism such as in blood lipids, markers of inflammation, blood pressure, cognitive performance and changes in bacteria living in the gut in adults 45 to 75 years of age. Participants will take part in two 3-month intervention periods, separated by 4-6 weeks, in random order ( a total of approximately 7 months). During one intervention period, they will include pecan nuts in their diet each day, while during the other intervention period they will avoid pecans in their diet. There will be an initial screening visit to evaluate eligibility and four study visits to the clinic. Participants will be asked to complete some questionnaires about their diet, physical and cognitive health, and provide blood and stool samples, and have their blood pressure measured.
CONDITIONS
Official Title
Health Properties of Pecan Nut Consumption
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Adults aged 45 to 75 years
- Body mass index (BMI) between 20 and 35 kg/m2
- Ability to understand the intervention instructions
- Willingness to follow the dietary intervention
- Willingness to provide biological samples including blood and stool
You will not qualify if you...
- Allergy to pecan nuts or other nuts
- Cognitive impairment due to any type of dementia or inability to understand or follow instructions
- Use of menopausal hormone replacement therapy
- Use of antibiotics or probiotics within 2 months before enrollment
- Uncontrolled diabetes with HbA1C greater than 9.5
- Being vegetarian or vegan
- Having serious medical conditions such as stage 3 or greater chronic kidney disease, heart failure, active cancer treatment, or inflammatory bowel disease
- Use of supplements that may affect vascular response or gut microbiome
- Use of statin drugs for lowering cholesterol
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 1 location
1
Ragle Human Nutrition Center, UC Davis campus
Davis, California, United States, 95616
Actively Recruiting
Research Team
F
Francene Steinberg, PhD
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
SINGLE
Allocation
RANDOMIZED
Model
CROSSOVER
Primary Purpose
PREVENTION
Number of Arms
2
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