Almonds and Diabetes Management

August 24, 2019 updated by: Carol Johnston, Arizona State University

Almond Ingestion at Meal-time Reduces Postprandial Glycemia and Chronic Ingestion Reduces Hemoglobin A1c in Individuals With Well-controlled Type 2 Diabetes

This trial examined the impact of acute and chronic almond ingestion on indicators of glucose control (postprandial glycemia and hemoglobin A1c). Hypotheses:

  1. Almonds will stimulate the secretion of GLP-1 in healthy adults and in adults with T2D The investigators were not able to demonstrate a relationship between GLP-1 secretion and almond consumption. Individuals with T2D were characterized with significantly greater GLP-1 secretion than the non-diabetic control subjects.
  2. Acute ingestion of almonds will decrease the postprandial glycemia and insulinemic responses in healthy controls and in individuals with T2D The investigators data support the hypothesis: almond consumption by individuals with T2D did attenuate postprandial glycemia; however, almond consumption did not alter glycemia in non-diabetic control subjects
  3. Chronic almond ingestion for 12 weeks will reduce fasting glucose (FG) and A1c concentrations in individuals with T2D The investigators data demonstrated modest beneficial effect of almond consumption on A1c in individuals with T2D. Almond consumption was also associated with modest weight loss as compared to the control treatment (low fat cheese sticks).

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

32

Phase

  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

28 years to 68 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • 12 subjects with diagnosed T2D for at least 1 year and 12 healthy individuals without T2D will be recruited for the acute almond trial.
  • 24 subjects with diagnosed T2D for at least 1 year will be recruited for the chronic almond trial.
  • Subjects from the campus population and nearby communities will be recruited to participate in these trials.

  • Men and women must be willing to comply with the experimental protocol including the restriction of nut consumption:

    • subjects recruited for the acute almond study must agree not to consume any nuts or nut butters for 1-week prior to and during the 2-week trial
    • participants in the chronic almond study must agree not to consume nuts or nut butters more than 2 times per week during the 12 week trial.
  • Participants must have a body mass index (BMI) from 20 to 35 kg/m2 and are aged 30 to 70 years.
  • Subjects with T2D may take oral hyperglycemic agents.

Exclusion Criteria:

  • Insulin use
  • History of a peanut allergy
  • Chronic or unresolved disease
  • Current smoking habit
  • Pregnant or lactating
  • Medication use that may impact incretin secretion. [Incretins are gastrointestinal hormones secreted at meal-time.]

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: almonds
1-oz raw almonds: 173 kcal, 4.6 g carbohydrate, 14.6 g fat
Dietary supplement: Almonds
Placebo Comparator: Control
cheese stick
Dietary supplement: Almonds

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Arizona State University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2008

Primary Completion (Actual)

June 1, 2009

Study Completion (Actual)

November 1, 2009

Study Registration Dates

First Submitted

July 9, 2010

First Submitted That Met QC Criteria

July 12, 2010

First Posted (Estimate)

July 13, 2010

Study Record Updates

Last Update Posted (Actual)

August 28, 2019

Last Update Submitted That Met QC Criteria

August 24, 2019

Last Verified

August 1, 2019

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • almond1

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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