Low bone mineral density
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Guangdong residents (duration >5 years). 2. Age =30 years old, Han. 3. Adults with low bone mineral density detected by dual energy X-ray absorptiometry (DXA). 4. Voluntary consent and signed informed consent. 5. Mental and cognitive normal, able to correctly understand the meaning of each item of the questionnaires.
Exclusion criteria
Exclusion criteria: 1. Pregnancy, lactation, planning pregnancy 2. People with the following diseases: Inflammatory bowel disease (ulcerative colitis, Crohn's disease, uncertain colitis, etc.), moderate to severe irritable bowel syndrome, infectious, ulcerative gastroenteritis, nutrient malabsorption or malabsorption (such as celiac disease, steatosis, etc.), major gastrointestinal surgery (in addition to cholecystectomy and appendectomy), severe kidney disease, severe liver disease, severe diabetes, Malignant tumors, neuropsychiatric diseases (such as depression and long-term medication), parathyroid diseases, etc.. 3. Long-term use of drugs that affect gastrointestinal tract or bone mineral metabolism (such as antibiotics, estrogens, etc.). 4. Long-term use of dietary supplement products (such as probiotics, dietary fiber, vitamins, calcium tablets, etc.) .
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Bone mineral density;Skeletal muscle mass; | — |
Secondary
| Measure | Time frame |
|---|---|
| Gut microbiota;Serum biomarkers; | — |
Countries
China
Contacts
Sun Yat-Sen University