{"count":2,"index":{"built_at":"2026-07-27T21:39:20.658007+00:00","public_records":55311,"revision":"f1423cb57c52fe7877037eb6"},"query":{"area":null,"kind":null,"lang":null,"limit":10,"match_mode":"all_terms","q":"Evidence check: SHBG in the context of Müdigkeit"},"results":[{"answer":"SHBG (sex hormone-binding globulin) is a carrier protein for testosterone and estradiol. Low SHBG levels are commonly associated with insulin resistance, metabolic syndrome, obesity, and PCOS – conditions that can indirectly contribute to fatigue. However, the provided context documents contain no direct studies or statements linking SHBG to fatigue. The association rests on mechanistic reasoning (hormone transport, metabolic regulation) and epidemiological correlations, not on specific evidence for fatigue as a symptom. An SHBG test alone cannot diagnose fatigue; it should be interpreted within a broader clinical workup including hormones and metabolic markers. Evidence grade: mechanistic/unclear.","area":"gesundheit","canonical_id":"gesundheit:canonical-cec8064a56407008fccab78c","id":"public-3f5026159bc798a0c9803bcf","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: SHBG in the context of Müdigkeit","score":22.38625538,"snippet":"SHBG (sex hormone-binding globulin) is a carrier protein for testosterone and estradiol. Low SHBG levels are commonly associated with insulin resistance, metabolic syndrome, obesity, and PCOS – conditions that can indirectly contribute to fatigue. However, the provided context documents contain no direct studies or statements linking SHBG to fatigue. The association rests on mechanistic reasoning (hormone transport, metabolic regulation) and epidemiological correlations, not on specific evidence for fatigue as a symptom. An SHBG test alone cannot diagnose fatigue; it should be interpreted within a broader clinical workup including hormones and metabolic markers. Evidence grade: mechanistic/u","sources":[],"title":"Evidence check: SHBG in the context of Müdigkeit","url":"https://tikki.wiki/wissen/gesundheit/frage/public-3f5026159bc798a0c9803bcf/evidence-check-shbg-in-the-context-of-muedigkeit/","verification":{"claim_support_verified":false,"human_reviewed":false,"quote_exact_match":false,"source_identity_verified":false,"tier":"existing_native_answer_privacy_screened_sources_pending"}},{"answer":"Fatigue can have many causes, and blood markers help narrow them down. Key markers include: - **Ferritin** (iron stores): Low ferritin (<30 ng/ml) indicates depleted iron, a common cause of fatigue even without anemia. Supplementation should be medically supervised (source: deep-qa-batch-2283). - **TSH and free T4** (thyroid): Hypothyroidism (elevated TSH) often presents with fatigue. Borderline TSH requires full workup, not self-supplementation with iodine (source: deep-qa-batch-2283). - **Vitamin B12 and folate**: Deficiency causes fatigue, neurological issues, and macrocytic anemia. Check especially in vegans, elderly, or post-gastrectomy. - **Vitamin D**: Deficiency is linked to fatigue and muscle weakness, though evidence for causality is moderate. - **Complete blood count (hemoglobin, MCV)**: To rule out anemia. - **CRP / ESR**: Chronic inflammation can cause fatigue. - **Fasting glucose, kidney and liver function**: To exclude diabetes, renal failure, or liver disease. - **Testosterone (in men)**: Free testosterone is more informative than total, as SHBG regulates bioavailability (source: deep-nvidia-bio-testosterone). **Limitations**: Direct-to-consumer (DTC) tests often provide isolated values without clinical context. A normal result does not rule out a treatable cause. Evidence for GPX1 variants or selenium in fatigue is mechanistic only, not clinically established (source: deep-qa-batch-1033). **Safety note**: Persistent fatigue warrants a medical workup. Self-supplementation (e.g., iron, iodine, selenium) can be harmful in excess.","area":"gesundheit","canonical_id":"gesundheit:canonical-9551866f0e5c7b1255918a74","id":"public-30fbb26f9bc3297bdbf8dacd","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"welche blutwerte sind wichtig bei müdigkeit — which blood markers matter?","score":17.28676596,"snippet":"Fatigue can have many causes, and blood markers help narrow them down. Key markers include: - **Ferritin** (iron stores): Low ferritin (<30 ng/ml) indicates depleted iron, a common cause of fatigue even without anemia. Supplementation should be medically supervised (source: deep-qa-batch-2283). - **TSH and free T4** (thyroid): Hypothyroidism (elevated TSH) often presents with fatigue. Borderline TSH requires full workup, not self-supplementation with iodine (source: deep-qa-batch-2283). - **Vitamin B12 and folate**: Deficiency causes fatigue, neurological issues, and macrocytic anemia. Check especially in vegans, elderly, or post-gastrectomy. - **Vitamin D**: Deficiency is linked to fatigue ","sources":[],"title":"welche blutwerte sind wichtig bei müdigkeit — which blood markers matter?","url":"https://tikki.wiki/wissen/gesundheit/frage/public-30fbb26f9bc3297bdbf8dacd/welche-blutwerte-sind-wichtig-bei-muedigkeit-which-blood-markers-matter/","verification":{"claim_support_verified":false,"human_reviewed":false,"quote_exact_match":false,"source_identity_verified":false,"tier":"existing_native_answer_privacy_screened_sources_pending"}}],"schema_version":"tikki.search-response.v1"}