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| Name | Class |
|---|---|
| National Honey Board | OTHER |
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This study aims to test the central hypothesis that adding to the diet daily yogurt with honey provides beneficial effects on digestive health and subjective mood in healthy adults.
This clinical trial will be a randomized, controlled, double-blind, crossover study with two 2-week treatment conditions separated by at least a 4-week washout period between conditions. Participant flow through the study conditions will be counterbalanced. Participants will be randomly allocated to yogurt with honey first or control first. Before beginning the first intervention period, participants will undergo a 2-week lead-in period that is devoid of all supplemental and dietary probiotics, fermented dairy products, and fermented foods. Participants will be asked to refrain from consuming all supplemental and dietary probiotics, fermented dairy products, and fermented foods throughout the entire study.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Yogurt with inactivated B. lactis and added cane sugar | Placebo Comparator | Participants will consume yogurt with heat inactivated B. lactis and added cane sugar twice daily for 14 days. |
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| Yogurt with B. lactis and added honey | Experimental | Participants will consume yogurt with B. lactis and added honey twice daily for 14 days. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Yogurt with B. lactis and added honey | Dietary Supplement | The intervention condition will utilize a commercially available yogurt (Activia) that contains Bifidobacterium animalis lactis DN-173 010/CNCM I-2494 (B. lactis). Participants will consume 170 g of yogurt with honey twice daily for 14 days. |
| Measure | Description | Time Frame |
|---|---|---|
| Intestinal transit time measured using colored dye markers | Determine the impact of consumption of daily yogurt with honey on intestinal transit time in vivo compared to control, yogurt containing heat-inactivated B.lactis with added sugar. Intestinal transit time will be measured using colored dye markers. | 2 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Digestive health measured using daily stool records with the Bristol Stool Scale | Determine the impact of consumption of daily yogurt with honey on digestive health compared to control (yogurt containing heat-inactivated B. lactis) using daily stool records. Within the records, participants rate stool consistency using the Bristol Stool Scale. | 2 weeks |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Illinois at Urbana-Champaign | Urbana | Illinois | 61801 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 38830472 | Derived | Mysonhimer AR, Brown MD, Alvarado DA, Cornman E, Esmail M, Abdiel T, Gutierrez K, Vasquez J, Cannavale CN, Miller MJ, Khan NA, Holscher HD. Honey Added to Yogurt with Bifidobacterium animalis subsp. lactis DN-173 010/CNCM I-2494 Supports Probiotic Enrichment but Does Not Reduce Intestinal Transit Time in Healthy Adults: A Randomized, Controlled, Crossover Trial. J Nutr. 2024 Aug;154(8):2396-2410. doi: 10.1016/j.tjnut.2024.05.028. Epub 2024 Jun 1. |
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Randomized, controlled, single-blind, crossover study with two 2-week treatment conditions separated by at least a 4-week washout period between conditions. Participant flow through the study conditions will be counterbalanced. Participants will be randomly allocated to yogurt with honey first or control first.
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Participants will be blinded to the order in which they receive the study treatments.
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| Yogurt with heat-inactivated B. lactis and added cane sugar | Dietary Supplement | The control condition will utilize a commercially available yogurt (Activia) following heat inactivation of the probiotic Bifidobacterium animalis lactis DN-173 010/CNCM I-2494 (B. lactis). Participants will consume 170 g of the heat-inactivated yogurt with added cane sugar twice daily for 14 days.The added cane sugar will be an isocaloric amount to the honey. |
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| Digestive health measured using rating scales of additional symptoms in daily stool records | Determine the impact of consumption of daily yogurt with honey on other measures of digestive health compared to control (yogurt containing heat-inactivated B. lactis) using daily stool records. Within the records, ratings of additional gastrointestinal symptoms include ease of passage, abdominal pain, bloating, burping, flatulence, nausea, reflux, and rumblings. | 2 weeks |
| Digestive health measured using the Gastrointestinal Tolerability questionnaire | Determine the impact of consumption of daily yogurt with honey on other measures of digestive health compared to control (yogurt containing heat-inactivated B. lactis) using the Gastrointestinal Tolerability questionnaire. This questionnaire assesses gastrointestinal health through 6 questions related to gastrointestinal health including nausea, bloating, rumblings, gas/flatulence, abdominal pain, and diarrhea. Each of the questions pertains to experience of symptoms in the past 7 days. | 2 weeks |
| Digestive health measured using the Gastrointestinal Quality of Life Index (GIQLI) questionnaire | Determine the impact of consumption of daily yogurt with honey on other measures of digestive health compared to control (yogurt containing heat-inactivated B. lactis) using the Gastrointestinal Quality of Life Index (GIQLI) questionnaire. The GIQLI assesses gastrointestinal health through a series of 36 questions pertaining to daily life and gastrointestinal symptoms experienced in the past 2 weeks. | 2 weeks |
| Mood measured using the Emotional Image Task | Determine the impact of consumption of daily yogurt with honey on mood states compared to control (yogurt containing heat-inactivated B. lactis) using the Emotional Image Task. This task measures response to neutral, positive, and negative image stimuli using participant valence, arousal, and dominance ratings. | 2 weeks |
| Mood measured using the Positive and Negative Affect Schedule (PANAS) questionnaire | Determine the impact of consumption of daily yogurt with honey on mood states compared to control (yogurt containing heat-inactivated B. lactis) using the Positive and Negative Affect Schedule (PANAS) questionnaire. The PANAS assesses general mood using a 20-item scale that includes words associated with either positive (10 words) or negative (10 words) emotions. | 2 weeks |
| Mood measured using the Depression, Anxiety, and Stress Scales-42 (DASS-42) questionnaire | Determine the impact of consumption of daily yogurt with honey on mood states compared to control (yogurt containing heat-inactivated B. lactis) using the Depression, Anxiety, and Stress Scales-42 (DASS-42) questionnaire. The DASS-42 includes subscales with 42 questions regarding negative emotional states and is used to assess mental health over the past week. | 2 weeks |
| Mood measured using Patient-Reported Outcomes Measurement Information System (PROMIS) questionnaires | Determine the impact of consumption of daily yogurt with honey on mood states compared to control (yogurt containing heat-inactivated B. lactis) using Patient-Reported Outcomes Measurement Information System (PROMIS) questionnaires. Specific PROMIS questionnaires utilized included PROMIS SF v1.0 - Anger 8a, PROMIS SF v1.0 - Anxiety 8a, PROMIS SF v1.0 - Fatigue 8a, PROMIS SF v1.0 - Positive Affect 15a, PROMIS SF v1.0 - Self-Efficacy Manage Emotions 8a, PROMIS SF v1.0 - Fatigue 13a (FACIT-Fatigue), PROMIS SF v1.1 - Global Health, and PROMIS SF v2.0 - Cognitive Function 8a. PROMIS. Surveys were scored using the recommended HealthMeasures Scoring Service. | 2 weeks |
| Cognitive function assessed using the Spatial Reconstruction Task | Determine the impact of consumption of daily yogurt with honey on cognitive function compared to control (yogurt containing heat-inactivated B. lactis) using the Spatial Reconstruction Task. This task requires participants to successfully encode and retrieve information pertaining to the position of six objects in relation to each other, necessitating recruitment of the hippocampal memory system. | 2 weeks |
| Gastrointestinal microbiota assessed using relative abundances | Determine the impact of daily consumption of yogurt with honey on the gastrointestinal microbiota compared to control (yogurt containing heat-inactivated B. lactis). Relative abundances of the gastrointestinal microbiota will be measured with 16S amplicon sequencing. | 2 weeks |
| ID | Term |
|---|---|
| D015014 | Yogurt |
| D013812 | Therapeutics |
| ID | Term |
|---|---|
| D043302 | Cultured Milk Products |
| D008892 | Milk |
| D001628 | Beverages |
| D000066888 | Diet, Food, and Nutrition |
| D010829 | Physiological Phenomena |
| D000074421 | Fermented Foods |
| D003611 | Dairy Products |
| D005502 | Food |
| D019602 | Food and Beverages |
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