Royal Ancient Oats™ Study
RAO
Impact of Royal Ancient Oats™ on Glycemic Response and Digestive Enzymes
1 other identifier
interventional
38
1 country
1
Brief Summary
Evaluating the effects of high avenanthramide ancient oat (Royal Ancient Oats™) muffins versus conventional oat muffins in regard to glycemic control.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Jan 2026
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 13, 2026
CompletedStudy Start
First participant enrolled
January 13, 2026
CompletedFirst Posted
Study publicly available on registry
January 28, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 30, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
September 15, 2026
January 28, 2026
January 1, 2026
6 months
January 13, 2026
January 19, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
To compare the effect of consuming high avenanthramide Royal Ancient Oats™ muffins or conventional oat muffins versus white wheat flour muffins on postprandial glycemic response.
Area Under the Curve (AUC) for glucose levels over 24 hours, as measured by Continuous Glucose Monitoring (CGM).
2 weeks
Secondary Outcomes (5)
To evaluate the effect of Royal Ancient Oats™ on incretin hormone secretion and satiety hormones.
2 weeks
To evaluate the effect of Royal Ancient Oats™ on incretin hormone secretion and satiety hormones.
2 weeks
To evaluate the effect of Royal Ancient Oats™ on incretin hormone secretion and satiety hormones.
2 weeks
To evaluate the effect of Royal Ancient Oats™ on incretin hormone secretion and satiety hormones.
2 weeks
To evaluate the effect of Royal Ancient Oats™ on incretin hormone secretion and satiety hormones.
2 weeks
Other Outcomes (5)
To evaluate changes in weight, waist circumference, and body composition before and after dietary intervention.
2 weeks
To evaluate changes in weight, waist circumference, and body composition before and after dietary intervention.
2 weeks
To evaluate changes in weight, waist circumference, and body composition before and after dietary intervention.
2 weeks
- +2 more other outcomes
Study Arms (2)
A: Order of receiving muffins differs
EXPERIMENTALA: Order of receiving muffins differs
B: Order of receiving muffins differs
EXPERIMENTALB: Order of receiving muffins differs
Interventions
muffins made with Royal Ancient Oat Flour™
Eligibility Criteria
You may qualify if:
- Non-diabetic (HbA1c\<5.7%) adults both men and women between the ages of 35-65 years with body mass index (BMI) ranging from 25 to 30 kg/m2
- Willing to comply with study procedures and supplement regimens.
- Providing consent to participate in the study.
- Willing to limit/minimize foods that are rich sources of fiber and high carb content.
- Participants should avoid taking any non-prescription/over-the-counter medications or nutritional supplements that could influence glycemic response. This includes vitamins, herbal supplements, and any medications affecting metabolism. Examples include probiotics and prebiotics, vit D, vit B12, Ginseng, fenugreek, weight loss supplements like green tea extract and Garcinia cambogia, fiber supplements like inulin and Psyllium husk. If participants need to make any changes due to health reasons, they should consult with the study coordinator before doing so.
You may not qualify if:
- Participants who have experienced weight loss or gain exceeding 5% of their body weight in the past 3 months, including those involved in any weight loss or weight gain programs through diet and/or lifestyle changes.
- Participants currently taking medications that could alter metabolism, such as weight loss medications, anti-hypertensive drugs, or lipid-lowering medications.
- Participants with any chronic metabolic diseases, including diabetes, or those using supplements other than a daily multivitamin.
- Pregnant or lactating women will be excluded from the study.
- Participants who use tobacco products.
- Participants who are unwilling to limit or minimize foods that are rich sources of fiber and high carbohydrate content.
- Excessive alcohol consumption (e.g., more than two drinks per day for men and more than one drink per day for women)
- Inconsistency in recent or planned changes in non-prescription/over-the-counter medications or nutritional supplements affecting glycemic response, including vitamins (e.g., Vitamin D, Vitamin B12), herbal supplements (e.g., Ginseng, Fenugreek), weight loss supplements (e.g., green tea extract, Garcinia cambogia), fiber supplements (e.g., inulin, psyllium husk), and probiotics/prebiotics.
- Inability or unwillingness to maintain the current regimen of these medications and supplements throughout the study period without consulting the study coordinator.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Standard Process Nutrition Innovation Center
Kannapolis, North Carolina, 28081, United States
Related Publications (14)
Shehzad A, Rabail R, Munir S, Jan H, Fernández-Lázaro D, Aadil RM. Impact of Oats on Appetite Hormones and Body Weight Management: A Review. Curr Nutr Rep. 2023 Mar;12(1):66-82. doi: 10.1007/s13668-023-00454-3. Epub 2023 Feb 15. PMID: 36790719; PMCID: PMC9930024.
BACKGROUNDZhouyao H, Malunga LN, Chu YF, Eck P, Ames N, Thandapilly SJ. The inhibition of intestinal glucose absorption by oat-derived avenanthramides. J Food Biochem. 2022 Oct;46(10):e14324. doi: 10.1111/jfbc.14324. Epub 2022 Jul 27.
PMID: 35892210BACKGROUNDChen CY, Milbury PE, Collins FW, Blumberg JB. Avenanthramides are bioavailable and have antioxidant activity in humans after acute consumption of an enriched mixture from oats. J Nutr. 2007 Jun;137(6):1375-82. doi: 10.1093/jn/137.6.1375.
PMID: 17513394BACKGROUNDChen V, Zurbau A, Ahmed A, Khan TA, Au-Yeung F, Chiavaroli L, Blanco Mejia S, Leiter LA, Jenkins DJA, Kendall CWC, Sievenpiper JL. Effect of oats and oat ß-glucan on glycemic control in diabetes: a systematic review and meta-analysis of randomized controlled trials. BMJ Open Diabetes Res Care. 2022 Sep 1;10(5):e002784. doi: 10.1136/bmjdrc-2022-002784. PMCID: PMC9438016.
BACKGROUNDLlanaj E, Dejanovic GM, Valido E, Bano A, Gamba M, Kastrati L, Minder B, Stojic S, Voortman T, Marques-Vidal P, Stoyanov J, Metzger B, Glisic M, Kern H, Muka T. Effect of oat supplementation interventions on cardiovascular disease risk markers: a systematic review and meta-analysis of randomized controlled trials. Eur J Nutr. 2022 Jun;61(4):1749-1778. doi: 10.1007/s00394-021-02763-1. Epub 2022 Jan 3.
PMID: 34977959BACKGROUNDRaguindin PF, Adam Itodo O, Stoyanov J, Dejanovic GM, Gamba M, Asllanaj E, Minder B, Bussler W, Metzger B, Muka T, Glisic M, Kern H. A systematic review of phytochemicals in oat and buckwheat. Food Chem. 2021 Feb 15;338:127982. doi: 10.1016/j.foodchem.2020.127982. Epub 2020 Sep 5.
PMID: 32950005BACKGROUNDWehrli F, Taneri PE, Bano A, Bally L, Blekkenhorst LC, Bussler W, Metzger B, Minder B, Glisic M, Muka T, Kern H. Oat Intake and Risk of Type 2 Diabetes, Cardiovascular Disease and All-Cause Mortality: A Systematic Review and Meta-Analysis. Nutrients. 2021 Jul 26;13(8):2560. doi: 10.3390/nu13082560.
PMID: 34444718BACKGROUNDLoskutov, I. G., Gnutikov, A. A., Blinova, E. V. & Rodionov, A. V. The Origin and Resource Potential of Wild and Cultivated Species of the Genus of Oats (Avena L.). Russ J Genet 57, 642-661 (2021)
BACKGROUNDSood, V. K., Sanadya, S. K., Kumar, S., Chand, S. & Kapoor, R. Health benefits of oat (Avena sativa) and nutritional improvement through plant breeding interventions. Crop Pasture Sci 74, 993-1013 (2022).
BACKGROUNDStewart, D. & McDougall, G. Oat agriculture, cultivation and breeding targets: Implications for human nutrition and health. in British Journal of Nutrition vol. 112 S50-S57 (Cambridge University Press, 2014).
BACKGROUNDOciepa, T. The oat gene pools - Review about the use of wild species in improving cultivated oat. Journal of Central European Agriculture 20, 251-261 (2019).
BACKGROUNDSang, S., & Chu, Y. (2017). Whole grain oats, more than just a fiber: Role of unique phytochemicals. Molecular Nutrition & Food Research, 61(7), 1600715.
BACKGROUNDPearson, R. W., Aldrich, D. G., H Allaway J E Dawson, J. W. & Gardner E G Heyne F L Patterson, C. O. Oats and Oat Improvement. vol. 4 https://acsess.onlinelibrary.wiley.com/doi/ (1952).
BACKGROUNDCoffman, F. A. Oat History, Identification and Classification. (1977).
BACKGROUND
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- HEALTH SERVICES RESEARCH
- Intervention Model
- CROSSOVER
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 13, 2026
First Posted
January 28, 2026
Study Start
January 13, 2026
Primary Completion (Estimated)
June 30, 2026
Study Completion (Estimated)
September 15, 2026
Last Updated
January 28, 2026
Record last verified: 2026-01