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Effects of wholegrain breakfast meals on appetite

Will eating a wholegrain breakfast meal with slower starch digestibility and higher polyphenol content result in greater post-prandial satiety, lower energy intake at a subsequent meal and greater antioxidant effects in healthy adults?

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12613000726752
Acronym
WAS Trial
Enrollment
40
Registered
2013-07-01
Start date
2013-04-08
Completion date
Unknown
Last updated
2020-01-13

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

Conditions

None listed

Brief summary

Wholegrains are rich in nutrients and other substances with antioxidant activity that have the potential to benefit human health, in a similar way to the effects of fruits and vegetables. Wholegrain foods have been associated with reduced weight gain, slowly digested carbohydrates and improved heart health, particularly in studies of populations that consume certain wholegrains as a staple food. We wish to investigate if some positive effects can be identified and measured in people consuming specific wholegrains in a single meal. This study aims to demonstrate the immediate effects of eating a range of wholegrain breakfasts on appetite and blood levels of glucose, appetite hormones and antioxidants. Therefore, this study is a very important step towards building evidence for specific wholegrains as important foods in appetite control and disease prevention.

Interventions

Intervention: Participants will undergo 3 test meals and 1 control meal. The order they receive the meals will be randomised. Test meals: 45grams of flaked wholegrain cereal biscuits derived from 3 different varieties of sorghum grain. The different test biscuits that are expected to have variable rates of starch digestibility and polyphenol content. Control meal: 45g wholegrain breakfast meal using comparator cereals. Duration of administration: Breakfast meals and subsequent 4 hours, fol

Intervention: Participants will undergo 3 test meals and 1 control meal. The order they receive the meals will be randomised. Test meals: 45grams of flaked wholegrain cereal biscuits derived from 3 different varieties of sorghum grain. The different test biscuits that are expected to have variable rates of starch digestibility and polyphenol content. Control meal: 45g wholegrain breakfast meal using comparator cereals. Duration of administration: Breakfast meals and subsequent 4 hours, following 12 hours overnight fast with a prior standardised dinner the night before. Time of administration: Morning breakfast meal. Frequency of administrations: 4 test days separated by a minimum 3-7 day washout period. Females will be tested during the same phase of their menstrual cycle.

Sponsors

Sanitarium
Lead SponsorCommercial sector/Industry

Study design

Allocation
Randomised controlled trial
Intervention model
Crossover
Primary purpose
Treatment
Masking
Blinded (masking used) (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

18-50 year old men and women Willing to attend research facility on 4 occasions for a period of 5 hours plus an initial pre-study interview for 1.5hours. BMI 18.5-33

Exclusion criteria

Unwilling to consume a breakfast meal comprising of wholegrain cereal with water on four occasions Existing allergies/intolerances to wheat or gluten Smokes cigarettes Know or suspect pregnancy or are breastfeeding Diabetes Major illnesses BMI <18.5 and >33 Have been taking antioxidant supplements, Vit C within 2 weeks of study (if randomised into bloods group) Irregular menstrual period Iron deficiency Cannot understand English

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026