{"count":7,"index":{"built_at":"2026-07-27T01:52:21.938933+00:00","public_records":55311,"revision":"193596e9dda0408163fb1e35"},"query":{"area":null,"kind":null,"lang":null,"limit":10,"match_mode":"all_terms","q":"Evidence check: TSH in the context of Sport"},"results":[{"answer":"TSH (thyroid-stimulating hormone) is a blood biomarker of thyroid function, not a genetic test. In the context of sport, TSH can be affected by intense training, caloric restriction, or overtraining – often TSH decreases under high training load, suggesting central suppression of the hypothalamic-pituitary-thyroid axis. Evidence is moderate, based on human observational studies, not RCTs. A low TSH alone is not a clear indicator of overtraining, as other factors (diet, stress, sleep) also matter. MyBody-X does not measure TSH; it is a standard blood test requiring clinical interpretation. A single TSH value has limited predictive power – serial measurements and inclusion of fT3, fT4, and clinical symptoms are necessary. Athletes with abnormal TSH should consult an endocrinologist before changing training or nutrition. In summary: TSH in sport is a useful but non‑standalone biomarker; evidence is moderate, and individual variability is high.","area":"gesundheit","canonical_id":"gesundheit:canonical-b37bbc16109195d0cd9fecbb","id":"public-b8265091130fc6c9601fdbe9","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: TSH in the context of Sport","score":20.72404492,"snippet":"TSH (thyroid-stimulating hormone) is a blood biomarker of thyroid function, not a genetic test. In the context of sport, TSH can be affected by intense training, caloric restriction, or overtraining – often TSH decreases under high training load, suggesting central suppression of the hypothalamic-pituitary-thyroid axis. Evidence is moderate, based on human observational studies, not RCTs. A low TSH alone is not a clear indicator of overtraining, as other factors (diet, stress, sleep) also matter. MyBody-X does not measure TSH; it is a standard blood test requiring clinical interpretation. A single TSH value has limited predictive power – serial measurements and inclusion of fT3, fT4, and cli","sources":[],"title":"Evidence check: TSH in the context of Sport","url":"https://tikki.wiki/wissen/gesundheit/frage/public-b8265091130fc6c9601fdbe9/evidence-check-tsh-in-the-context-of-sport/","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":"TSH (thyroid-stimulating hormone) is a key regulator of thyroid function and is often measured in sports contexts to assess metabolic and energy status. Acute exercise can transiently suppress TSH levels, while chronic overtraining may be linked to subclinical hypothyroidism – but the evidence is moderate, mostly from observational studies. An isolated abnormal TSH does not confirm thyroid disease; in athletes, factors like training load, caloric restriction, and stress can alter values. MyBody-X tests can measure TSH but do not provide a clinical diagnosis. Interpretation should include fT3, fT4, and clinical symptoms. If values are abnormal or performance declines, medical evaluation is recommended. Evidence: human-moderate – no large RCTs directly link TSH to athletic performance. Caveat: high individual variability; reference ranges are not athlete-specific.","area":"gesundheit","canonical_id":"gesundheit:canonical-03248bd76b78e318a267f492","id":"public-987afcfc986f9099ef2b5f94","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: TSH Schilddrüse in the context of Sport","score":20.70401477,"snippet":"TSH (thyroid-stimulating hormone) is a key regulator of thyroid function and is often measured in sports contexts to assess metabolic and energy status. Acute exercise can transiently suppress TSH levels, while chronic overtraining may be linked to subclinical hypothyroidism – but the evidence is moderate, mostly from observational studies. An isolated abnormal TSH does not confirm thyroid disease; in athletes, factors like training load, caloric restriction, and stress can alter values. MyBody-X tests can measure TSH but do not provide a clinical diagnosis. Interpretation should include fT3, fT4, and clinical symptoms. If values are abnormal or performance declines, medical evaluation is re","sources":[],"title":"Evidence check: TSH Schilddrüse in the context of Sport","url":"https://tikki.wiki/wissen/gesundheit/frage/public-987afcfc986f9099ef2b5f94/evidence-check-tsh-schilddruese-in-the-context-of-sport/","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":"Thyroid function, as measured by free thyroxine (FT4), plays a role in energy metabolism and can influence athletic performance. However, there is no strong evidence from randomized controlled trials supporting FT4 as a standalone biomarker for sports optimization. Most data come from observational studies showing associations between thyroid hormones and training adaptations, but not causal effects. Moreover, FT4 reference ranges and individual values vary widely. A single FT4 measurement without TSH and fT3 is of limited value. For athletes, maintaining normal thyroid status is important, but deliberately manipulating FT4 through supplements or medication is not evidence-based and may be risky (e.g., thyrotoxicosis). The evidence level is therefore 'mechanistic/observational'.","area":"gesundheit","canonical_id":"gesundheit:canonical-a2042a7afaae07e64d445e8b","id":"public-e62d2d71c0b19ea39e9208a5","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: FT4 in the context of Sport","score":19.44471116,"snippet":"Thyroid function, as measured by free thyroxine (FT4), plays a role in energy metabolism and can influence athletic performance. However, there is no strong evidence from randomized controlled trials supporting FT4 as a standalone biomarker for sports optimization. Most data come from observational studies showing associations between thyroid hormones and training adaptations, but not causal effects. Moreover, FT4 reference ranges and individual values vary widely. A single FT4 measurement without TSH and fT3 is of limited value. For athletes, maintaining normal thyroid status is important, but deliberately manipulating FT4 through supplements or medication is not evidence-based and may be r","sources":[],"title":"Evidence check: FT4 in the context of Sport","url":"https://tikki.wiki/wissen/gesundheit/frage/public-e62d2d71c0b19ea39e9208a5/evidence-check-ft4-in-the-context-of-sport/","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":"The provided context contains no information about progesterone in relation to longevity. MyBody-X tests and articles focus on other biomarkers such as ferritin, TSH, IgG food intolerances, genetic tests for sports, and biological age. Without specific evidence from the context, no informed statement can be made. In general research, progesterone is often linked to reproductive health, not primarily longevity. Some studies explore anti-inflammatory effects, but evidence is weak. Consumers should be skeptical of claims that progesterone tests or supplements extend lifespan, as this is not supported by the sources provided here.","area":"gesundheit","canonical_id":"gesundheit:canonical-b343f8e37dcca508af877e39","id":"public-7b5aaca670745021bdd325f7","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: Progesteron in the context of longevity","score":18.56240821,"snippet":"The provided context contains no information about progesterone in relation to longevity. MyBody-X tests and articles focus on other biomarkers such as ferritin, TSH, IgG food intolerances, genetic tests for sports, and biological age. Without specific evidence from the context, no informed statement can be made. In general research, progesterone is often linked to reproductive health, not primarily longevity. Some studies explore anti-inflammatory effects, but evidence is weak. Consumers should be skeptical of claims that progesterone tests or supplements extend lifespan, as this is not supported by the sources provided here.","sources":[],"title":"Evidence check: Progesteron in the context of longevity","url":"https://tikki.wiki/wissen/gesundheit/frage/public-7b5aaca670745021bdd325f7/evidence-check-progesteron-in-the-context-of-longevity/","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":"The question of myths vs facts regarding FT4 (free thyroxine) and sport is not addressed in the provided context. Generally, FT4 is a thyroid hormone regulating basal metabolic rate. A common myth is that intense exercise drastically raises FT4, boosting fat burning. In reality, studies show moderate effects: endurance exercise may slightly increase FT4, while overtraining often suppresses it. Another myth is that low FT4 always indicates hypothyroidism; in athletes, it can reflect a physiological adaptation (euthyroid sick syndrome) without requiring treatment. Fact: FT4 alone is not a reliable predictor of athletic performance; assessment requires TSH, fT3, and clinical symptoms. The evidence is mixed – many studies are small or population-specific. Anyone checking hormone status in a sports context should discuss results with an endocrinologist, as reference ranges may differ for athletes.","area":"gesundheit","canonical_id":"gesundheit:canonical-8b8134dc22fd1af7c281565b","id":"public-ba0bdddc82cd83c5567e122c","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Myths vs facts: FT4 and Sport","score":17.86756855,"snippet":"The question of myths vs facts regarding FT4 (free thyroxine) and sport is not addressed in the provided context. Generally, FT4 is a thyroid hormone regulating basal metabolic rate. A common myth is that intense exercise drastically raises FT4, boosting fat burning. In reality, studies show moderate effects: endurance exercise may slightly increase FT4, while overtraining often suppresses it. Another myth is that low FT4 always indicates hypothyroidism; in athletes, it can reflect a physiological adaptation (euthyroid sick syndrome) without requiring treatment. Fact: FT4 alone is not a reliable predictor of athletic performance; assessment requires TSH, fT3, and clinical symptoms. The evide","sources":[],"title":"Myths vs facts: FT4 and Sport","url":"https://tikki.wiki/wissen/gesundheit/frage/public-ba0bdddc82cd83c5567e122c/myths-vs-facts-ft4-and-sport/","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":"The question about which blood markers matter for a male hormone & vitality check cannot be specifically answered from the provided context – the snippets cover DNA tests, microbiome, and sports, not blood markers. From general medical practice, key markers include: total and free testosterone, SHBG, LH, FSH, estradiol, prolactin, vitamin D, vitamin B12, ferritin, TSH, and possibly cortisol and PSA. These assess hormonal balance, micronutrient status, and thyroid function. Evidence is based on endocrine guidelines and clinical practice, not on the given sources. Caveat: blood markers are not diagnostic; a physician should interpret results in context. MyBody-X offers such checks, but they are lifestyle tests, not medical devices. Results can serve as a screening tool but do not replace medical evaluation for symptoms like fatigue, low libido, or erectile dysfunction.","area":"gesundheit","canonical_id":"gesundheit:canonical-f53cbeee1c968b01d8d82735","id":"public-a723be254401e0bc252a457e","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Hormon & VitalCheck für Männer: which blood markers matter?","score":17.31932066,"snippet":"The question about which blood markers matter for a male hormone & vitality check cannot be specifically answered from the provided context – the snippets cover DNA tests, microbiome, and sports, not blood markers. From general medical practice, key markers include: total and free testosterone, SHBG, LH, FSH, estradiol, prolactin, vitamin D, vitamin B12, ferritin, TSH, and possibly cortisol and PSA. These assess hormonal balance, micronutrient status, and thyroid function. Evidence is based on endocrine guidelines and clinical practice, not on the given sources. Caveat: blood markers are not diagnostic; a physician should interpret results in context. MyBody-X offers such checks, but they ar","sources":[],"title":"Hormon & VitalCheck für Männer: which blood markers matter?","url":"https://tikki.wiki/wissen/gesundheit/frage/public-a723be254401e0bc252a457e/hormon-vitalcheck-fuer-maenner-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"}},{"answer":"Several factors can explain a weight loss plateau despite exercise and a calorie deficit. Metabolic adaptation is common: prolonged restriction lowers resting energy expenditure. Water retention from muscle repair, inflammation, or hormonal shifts (thyroid, cortisol) can mask fat loss. Additionally, calorie tracking and exercise expenditure estimates are often inaccurate—fitness trackers tend to overestimate burn. When to see a doctor? If after 4–6 weeks of consistent deficit (300–500 kcal/day) and regular exercise you see no change, or if you experience fatigue, hair loss, cold intolerance, or menstrual irregularities. A physician can check thyroid function (TSH, fT3, fT4), fasting glucose, insulin resistance (HOMA-IR), and inflammatory markers. Also consider medications that may cause weight retention. Evidence is practice-based; no direct genetic markers from the provided context apply. Avoid extreme deficits; prioritize protein and sleep.","area":"gesundheit","canonical_id":"gesundheit:canonical-4a5b8ebb17c4a5a5c59e6b4c","id":"public-0a9ab356939c1f915e7bc8a4","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"warum nehme ich trotz sport und kaloriendefizit nicht ab — when to see a doctor?","score":17.29599866,"snippet":"Several factors can explain a weight loss plateau despite exercise and a calorie deficit. Metabolic adaptation is common: prolonged restriction lowers resting energy expenditure. Water retention from muscle repair, inflammation, or hormonal shifts (thyroid, cortisol) can mask fat loss. Additionally, calorie tracking and exercise expenditure estimates are often inaccurate—fitness trackers tend to overestimate burn. When to see a doctor? If after 4–6 weeks of consistent deficit (300–500 kcal/day) and regular exercise you see no change, or if you experience fatigue, hair loss, cold intolerance, or menstrual irregularities. A physician can check thyroid function (TSH, fT3, fT4), fasting glucose,","sources":[],"title":"warum nehme ich trotz sport und kaloriendefizit nicht ab — when to see a doctor?","url":"https://tikki.wiki/wissen/gesundheit/frage/public-0a9ab356939c1f915e7bc8a4/warum-nehme-ich-trotz-sport-und-kaloriendefizit-nicht-ab-when-to-see-a-doctor/","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"}