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Effects of Daily Almond Intake as a Preload Before Meals Versus as a Snack Among Korean Adults

Daily Almond Intake as a Preload Before Meals Versus as a Snack Between Meals Has Different Effects on Body Fat Percentages and the Lipid Profile in a Randomized Controlled Trial of Young Adults in South Korea

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03014531
Enrollment
227
Registered
2017-01-09
Start date
2014-06-30
Completion date
2016-05-31
Last updated
2017-08-16

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

Conditions

Adult Young and Healthy

Brief summary

The study was conducted to investigate the effects of daily almond intake based on the timing of almond consumption (i.e., almond consumption as a preload or between-meal snack) on body composition, lipid profile, and oxidative and inflammation indicators among young Korean adults.

Detailed description

The current study was conducted to investigate the effects of daily almond intake on body composition, lipid profile, and oxidative and inflammation indicators among young Korean adults based on the timing of almond consumption. Participants were randomly assigned to one of three groups: (1) a pre-meal group (PM; n = 58) in which participants were instructed to consume 56 g of almonds per day as a preload when having regular meals; (2) a snack group (SN; n =55) in which participants were instructed to consume 56 g of almonds between meals as snacks; and (3) a control group (CL; n = 56) in which participants were provided high-carbohydrate iso-caloric control food. The three-day diet records, including two consecutive weekdays and one weekend day, were done once before the trial and twice during the trial. Body composition was assessed through multi-frequency whole-body bioimpedance measurement using InBody 620 (Biospace Co., Ltd, Seoul, Korea).After a 12-hour fast, blood samples were taken at the baseline time point (week 0) and at weeks 8 and 16 by standard venipuncture. The serum total cholesterol and triglycerides levels were measured by the enzymatic-colorimetric method using a Cobas 8000 c702 chemistry analyzer (Roche Diagnostics; Mannheim, Germany). HDL cholesterol and LDL cholesterol levels were determined via homogeneous enzymatic colorimetry.

Interventions

OTHERalmond
OTHERhigh-carbohydrate control food

Sponsors

Almond Board of California
CollaboratorOTHER
ICAN Nutrition Education and Research
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
20 Years to 39 Years
Healthy volunteers
Yes

Inclusion criteria

* non-smokers * age 20-39 yr * Male and Female non-smokers * BMI 17-30 kg/m2 * under Korean habitual diet

Exclusion criteria

* any diseases * any weight change 6 mo before the study * \>2 times/wk nut consumption * frequent alcohol consumption * any use of nutrient supplements * erratic exercise habits * women who were with irregular menses, taking birth control pills, pregnant or lactating

Design outcomes

Primary

MeasureTime frame
Changes of body fat percentages from baselineweek 8
Changes of blood lipid profiles from baselineweek 8

Secondary

MeasureTime frame
Changes of blood IL-6 levelsweek 8

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 27, 2026