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Eating Peanuts for Health

Peanut Consumption and Human Weight Management

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01886326
Enrollment
196
Registered
2013-06-25
Start date
2010-02-28
Completion date
2012-05-31
Last updated
2013-06-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hyperlipidemia, Obesity, Overweight

Keywords

Obesity, energy balance, variety, nut intake

Brief summary

Evidence is accumulating that peanut consumption confers health benefits, such as reduction of cardiovascular disease risk and possibly diabetes risk (Jenkins et al., 2008; Mattes et al., 2008). However, peanuts are a high fat, energy dense food and concerns about weight gain are widespread. Although research indicates that other characteristics of peanuts offset these properties, and that peanuts may be incorporated into diets without posing a threat to weight gain (Mattes et al., 2008), concern remains among policymakers, healthcare providers, and consumers. Furthermore, worry exists that eating salted peanuts may elevate blood pressure and that eating honey-roasted peanuts make elevate blood sugar. These fears create substantial obstacles to increased peanut consumption. Recommendations to increase peanut consumption may be made, but if they are not followed, there will be no impact on health. Additional knowledge is needed on: (1) the acceptability of peanuts consumed on a chronic basis, (2) the chronic intake of moderate levels of peanuts and body weight, and 3) the effects of peanuts on blood pressure and blood sugar. The proposed research will examine the acceptability of long-term inclusion of a single form versus varied forms of peanuts in the diet. It is expected that responses will be varied among individuals with different personality characteristics (e.g., prefer sweet versus savory foods, hedonic versus non-hedonic eaters). A better understanding of how different segments of the population choose to include peanuts in their diet and how to optimize long-term consumption should provide insights for better marketing and improved health. Furthermore, it is anticipated that eating salty peanuts will not raise blood pressure and that eating honey-roasted peanuts will not raise blood sugar. Documenting this will add credibility to the evidence that peanuts do not cause weight gain, as well as reinforce recommendations to increase peanut consumption for their health benefits.

Interventions

OTHERConsumption of 42 grams of peanuts daily

Consumption of the given 42 grams of peanuts daily without instructions for use (i.e. with/without meals, etc.)

Sponsors

United States Agency for International Development (USAID)
CollaboratorFED
Purdue University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

* Between 18 and 50 years of age * Weight stable (\< 3 kg weight change within last 3 months) * Constant habitual activity patterns (no deviation \> 1x/wk at 30 min/session within last 3 months) * Constant habitual diet patterns within last 3 months * Willingness to eat all test foods (peanuts daily for 12 weeks) * No allergy to foods provided in the study (peanuts) * Not a daily peanut or tree nut consumer * Not planning to change use of medications known to influence appetite or metabolism * Not diabetic or hypertensive * No history of gastrointestinal pathology * Non-smoker for one year or more

Exclusion criteria

\-

Design outcomes

Primary

MeasureTime frameDescription
Change in Pulse2, 4, 6, 8, 10, and 12 weeks
Change in Hedonics of peanut consumption12 weeksParticipants will rate their liking of the sample each day using a visual analog scale.
Change in Body Composition2, 4, 6, 8, 10, and 12 weeks
Change in Fasting Blood Glucose4, 8, and 12 weeks
Change in Cortisol4, 8, and 12 weeks
Change in Insulin4, 8, and 12 weeks
Change in Weight2, 4, 6, 8, 10, and 12 weeks
Change in Blood Lipids4, 8, and 12 weeks
Change in Blood Pressure2, 4, 6, 8, 10, and 12 weeks

Secondary

MeasureTime frameDescription
Flavor attribute liking measuresAt baseline
Compliance12 weeksParticipants will self-report compliance to study protocol using record sheets.
Appetitive Ratings4, 8, and 12 weeksCollected on handheld computer
Consumption Parameters12 weeksParticipants will note if peanuts were eaten as a meal or snack, at what time, and with what other foods daily.
Personality QuestionnairesAt baseline visit

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 20, 2026