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| Name | Class |
|---|---|
| Soy Nutrition Institute | UNKNOWN |
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This study aims to conduct a randomized clinical trial to measure the effects of a 3-month daily mixed-soy food intervention vs. a control group receiving isocaloric foods on reproductive hormones, body composition, metabolic risk, fecal microbiota, and cognition among 8-11-year-old children. Additionally, this study will assess soy food intake immediately following participation in the clinical trial to determine changes in soy food acceptance in children.
The central hypothesis is that greater soy isoflavone consumption does not alter sex steroid levels but is associated with beneficial clinical outcomes of body composition, metabolic health, and gut-brain axis among pre- and early adolescents.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Soy | Experimental | The experimental group will be asked to consume 2 servings/day of soy foods for 3 months |
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| Non-Soy Plant-Based Foods | Active Comparator | The control group will be asked to consume 2 servings/day of non-soy plant-based foods for 3 months |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Soy foods | Other | Soy milk, soy yogurt, tofu, tempeh, soy nuts, edamame, soy protein bar, and soy-based frozen meat substitutes. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Sex steroid excretion | urinary concentration of androgen and estrogenic steroids | 3 months (Baseline vs Follow-up) |
| Measure | Description | Time Frame |
|---|---|---|
| Gut microbiota | Gut microbiota will be assessed using a fecal sample. Outcomes will include α-diversity/community richness and evenness (Shannon Index), β-diversity (microbial structures), and Firmicutes:Bacteroidetes ratio. | 3 months (Baseline vs Follow-up) |
| Attentional Accuracy |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Naiman Khan, PhD, RD | Contact | 2173002197 | nakhan2@illinois.edu |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Illinois | Recruiting | Urbana | Illinois | 61801 | United States |
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| ID | Term |
|---|---|
| D045730 | Soy Foods |
| ID | Term |
|---|---|
| D000074421 | Fermented Foods |
| D000066888 | Diet, Food, and Nutrition |
| D010829 | Physiological Phenomena |
| D000067075 | Vegetable Products |
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| Non-Soy Plant-Based Foods | Other | Pea milk, almond milk yogurt, chickpeas, chickpea chips, lentil chips, non-soy protein bar, and non-soy based frozen meat substitutes. |
|
Changes in accuracy (%) between groups using a computerized flanker task. |
| 3 months (Baseline vs Follow-up) |
| Attentional Reaction Time | Changes in reaction time (ms) between groups using a computerized flanker task. | 3 months (Baseline vs Follow-up |
| Hippocampal-dependent Relational memory | Spatial memory task accuracy. | 3 months (Baseline vs Follow-up) |
| Body Composition | DXA scans will be used to assess whole body bone density and Android:Gynoid ratio. | 3 months (Baseline vs Follow-up) |
| Metabolic Markers | Fasted venous blood will be collected from the antecubital vein of the arm to measure TG, LDL, HDL, TC, and FG using the Piccolo Xpress Analyzer (Abaxis, Inc.). | 3 months (Baseline vs Follow-up) |
| Pubertal Staging | Tanner pubertal stage will be assessed using the Growing and Changing Questionnaire. The survey consists of line drawings23 representing the Tanner stages for genital size and for pubic hair and to record which drawing most closely represents the child's stage. | 3 months (Baseline vs Follow-up) |
| Cognitive Abilities and Academic Achievement | Woodcock Johnson Tests of Cognitive Abilities and Academic Achievement | 3 months (Baseline vs Follow-up) |
| D014675 | Vegetables |
| D005502 | Food |
| D019602 | Food and Beverages |