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| Name | Class |
|---|---|
| Sun Genomics | UNKNOWN |
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The goal of this clinical trial is to compare the effect of a probiotic strain on mental wellbeing in moderately stressed, healthy, adults in the general population. The main question it aims to answer is
• what is the impact of probiotic consumption on overall mental wellbeing? Participants will consume one probiotic or placebo capsule per day, answer a set of questionnaire (at 3 time points) and wear a wearable device for the total duration of the study.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Probiotic Arm | Experimental |
| |
| Control | Placebo Comparator |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Probiotic | Dietary Supplement | 6 Billion CFU per day |
| |
| Placebo |
| Measure | Description | Time Frame |
|---|---|---|
| Change in Mental wellbeing | Improvement in mental wellbeing will be measured using the Oxford Happiness Questionnaire (OHQ). The Oxford Happiness Inventory was devised as a broad measure of personal happiness. The OHQ has a total of 29 items. Each item is scored on a Likert scale from 1 to 6 (1=strongly disagree; 2=moderately disagree; 3=slightly disagree; 4=slightly agree; 5=moderately agree; 6=strongly agree). Some items are phrased positively and others negatively. Such that negative items (1, 3, 12, 13, 16, 18, 21 and 29) should be scored in reverse (Hills & Argyle, 2002). The total score is then divided by 29. Interpretation of the final score is as follows: A final score between 1 to 2 is considered "not happy"; between 2 and 3 is "somewhat unhappy"; between 3 and 4 is considered "Neutral"; 4 is "somewhat or moderately happy"; between 4 and 5 is "rather happy"; between 5 and 6 is "very happy"; 6 is "too happy". | 4 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Change in Stress scores | Change in stress scores will be measured using the short version of the Depression, Anxiety, Stress Scale (DASS-21). Each item is scored from 0 to 3, with a score of 0 indicating that the statement did not apply or never. A score of 3 indicates that the statement applied very much or almost always. In DASS-21, items 1, 6, 8, 11, 12, 14 and 18 relate to measurement of stress. Given that DASS-21 is the short version of DASS-42, the total item score is multiplied by 2. The final total scores range from 0 (no stress) to 42 (extremely stressed). Scores ranging between 0-14 (stress) are considered normal. Scores above 14 are considered positive for stress. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Divya Nair | SunGenomics | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Sun Genomics, Inc. | San Diego | California | 92122 | United States |
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| ID | Term |
|---|---|
| D019936 | Probiotics |
| ID | Term |
|---|---|
| D019587 | Dietary Supplements |
| D005502 | Food |
| D000066888 | Diet, Food, and Nutrition |
| D010829 | Physiological Phenomena |
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| Dietary Supplement |
0 CFU per day |
|
| 4 weeks |
| Change in anxiety scores | Change in anxiety scores will be measured using the short version of the Depression, Anxiety, Stress Scale (DASS-21). Each item is scored from 0 to 3, with a score of 0 indicating that the statement did not apply or never. A score of 3 indicates that the statement applied very much or almost always. In DASS-21, items 2, 4, 7, 9, 15, 19 and 20 relate to measurement of anxiety. Given that DASS-21 is the short version of DASS-42, the total item score is multiplied by 2. The final total scores range from 0 (no anxiety) to 42 (extremely anxious). Scores ranging between 0-14 (stress) are considered normal. Scores above 14 are considered positive for anxiety. | 4 weeks |
| Change in Depression scores | Change in depression scores will be measured using the short version of the Depression, Anxiety, Stress Scale (DASS-21). Each item is scored from 0 to 3, with a score of 0 indicating that the statement did not apply or never. A score of 3 indicates that the statement applied very much or almost always. In DASS-21, items 3, 5, 10, 13, 16, 17, and 21 relate to measurement of depression . Given that DASS-21 is the short version of DASS-42, the total item score is multiplied by 2. The final total scores range from 0 (no depression ) to 42 (extremely depressed). Scores ranging between 0-14 (stress) are considered normal. Scores above 14 are considered positive for depression . | 4 weeks |
| Change in Salivary cortisol | The saliva kit contains contains a 15 ml sterile plastic tube with lid and instructions. The instructions outline that the participant will need to self-collect the saliva sample before going to bed by spitting into the tube to fill up ½ of the tube. The collection process should take no more than 15-30 minutes total. The participant shall writ their name, the date, and the time of collection on the tube. The full sample volume will be used for measurement. | 4 weeks |
| D019602 |
| Food and Beverages |