{"count":8,"index":{"built_at":"2026-07-28T00:36:02.449327+00:00","public_records":55311,"revision":"6dbdea8e0086e1aca50ae08c"},"query":{"area":null,"kind":null,"lang":null,"limit":10,"match_mode":"all_terms","q":"Evidence check: Ferritin in the context of Sport"},"results":[{"answer":"The provided context does not contain specific information on ferritin in sport. In general, ferritin is a key marker of body iron stores. In athletes, especially endurance athletes, low ferritin levels (e.g., <30 ng/mL) are common and may indicate iron deficiency anemia, which can impair performance. Studies show that iron supplementation in confirmed deficiency improves endurance capacity. However, ferritin is an acute-phase reactant; inflammation or infection can falsely elevate or lower values. A single ferritin test is insufficient for diagnosis – it should be combined with hemoglobin, transferrin saturation, and CRP. Consumer DNA tests do not measure ferritin directly; they only report genetic variants (e.g., HFE) that may increase risk of iron overload. The evidence for routine ferritin screening in athletes is moderate (observational studies, some RCTs). Caution: unsupervised iron supplementation can be harmful in cases of iron overload (e.g., hemochromatosis).","area":"gesundheit","canonical_id":"gesundheit:canonical-b1dc0ec6af0d2e3260f701a7","id":"public-1bf4064ff6886452e0ac08e1","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: Ferritin in the context of Sport","score":20.35468232,"snippet":"The provided context does not contain specific information on ferritin in sport. In general, ferritin is a key marker of body iron stores. In athletes, especially endurance athletes, low ferritin levels (e.g., <30 ng/mL) are common and may indicate iron deficiency anemia, which can impair performance. Studies show that iron supplementation in confirmed deficiency improves endurance capacity. However, ferritin is an acute-phase reactant; inflammation or infection can falsely elevate or lower values. A single ferritin test is insufficient for diagnosis – it should be combined with hemoglobin, transferrin saturation, and CRP. Consumer DNA tests do not measure ferritin directly; they only report","sources":[],"title":"Evidence check: Ferritin in the context of Sport","url":"https://tikki.wiki/wissen/gesundheit/frage/public-1bf4064ff6886452e0ac08e1/evidence-check-ferritin-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":"An iron/ferritin self-test can be relevant for athletes, as iron deficiency is common (especially in endurance sports) and can impair performance. However, the reliability of such home tests is limited: ferritin is an acute-phase reactant, meaning inflammation, infection, or liver issues can skew results, so a low value does not always indicate true deficiency. Moreover, standardized reference ranges for athletes are often lacking. A physician-supervised lab test (including CRP, transferrin saturation) is more reliable. Evidence for self-testing in sports is moderate – it may serve as a screening tool but not as a standalone diagnosis. Caveat: overinterpretation can lead to unnecessary supplementation or overlooking other causes.","area":"gesundheit","canonical_id":"gesundheit:canonical-8dc29e0b068ec09134d5c82f","id":"public-b573ad26ac77ffc72259d536","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: Eisen-Ferritin Selbsttest in the context of Sport","score":20.34590583,"snippet":"An iron/ferritin self-test can be relevant for athletes, as iron deficiency is common (especially in endurance sports) and can impair performance. However, the reliability of such home tests is limited: ferritin is an acute-phase reactant, meaning inflammation, infection, or liver issues can skew results, so a low value does not always indicate true deficiency. Moreover, standardized reference ranges for athletes are often lacking. A physician-supervised lab test (including CRP, transferrin saturation) is more reliable. Evidence for self-testing in sports is moderate – it may serve as a screening tool but not as a standalone diagnosis. Caveat: overinterpretation can lead to unnecessary suppl","sources":[],"title":"Evidence check: Eisen-Ferritin Selbsttest in the context of Sport","url":"https://tikki.wiki/wissen/gesundheit/frage/public-b573ad26ac77ffc72259d536/evidence-check-eisen-ferritin-selbsttest-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":"Ferritin is a key iron storage protein and a common marker for iron status in athletes. Low ferritin (e.g., <30 ng/mL) may indicate depleted iron stores even before anemia develops, potentially impairing endurance, recovery, and immune function. However, ferritin alone is not diagnostic: it can be falsely elevated by inflammation or lowered by overtraining. In sports, iron deficiency is multifactorial—due to increased demand, foot-strike hemolysis, sweating, or poor intake. Supplementation without confirmed deficiency is not recommended and may cause harm. Evidence for performance improvement from iron supplementation is strongest in athletes with confirmed iron deficiency (with or without anemia). For those with normal ferritin, no clear benefit exists. A full workup (CBC, transferrin saturation, CRP) is essential. Conclusion: Ferritin is a useful screening tool but must be interpreted in context. Athletes with symptoms should seek medical evaluation rather than self-supplement.","area":"gesundheit","canonical_id":"gesundheit:canonical-46c3ad952e61cef28d66c3f2","id":"public-df199e42d16ef1b99d98889a","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: Ferritin Eisenmangel in the context of Sport","score":20.30882096,"snippet":"Ferritin is a key iron storage protein and a common marker for iron status in athletes. Low ferritin (e.g., <30 ng/mL) may indicate depleted iron stores even before anemia develops, potentially impairing endurance, recovery, and immune function. However, ferritin alone is not diagnostic: it can be falsely elevated by inflammation or lowered by overtraining. In sports, iron deficiency is multifactorial—due to increased demand, foot-strike hemolysis, sweating, or poor intake. Supplementation without confirmed deficiency is not recommended and may cause harm. Evidence for performance improvement from iron supplementation is strongest in athletes with confirmed iron deficiency (with or without a","sources":[],"title":"Evidence check: Ferritin Eisenmangel in the context of Sport","url":"https://tikki.wiki/wissen/gesundheit/frage/public-df199e42d16ef1b99d98889a/evidence-check-ferritin-eisenmangel-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":"Transferrin is a key protein for iron transport in the blood and is often used in sports contexts as a marker of iron status. Low transferrin levels can indicate iron deficiency anemia, which impairs endurance performance. However, the evidence for using transferrin alone as a direct biomarker for performance optimization is weak. Interpretation is complicated by factors such as inflammation, training load, and individual variability. Moreover, the provided context lacks specific studies or guidelines that support the evidence-based use of transferrin in sports. Therefore, a conservative assessment is warranted: transferrin can be useful as part of a comprehensive iron status panel (including ferritin, hemoglobin, soluble transferrin receptor), but isolated measurements are insufficient. Athletes with abnormal values should seek medical advice.","area":"gesundheit","canonical_id":"gesundheit:canonical-b3b649da5f32e806ff57b17d","id":"public-953ad35dbc6527e293f6592a","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: Transferrin in the context of Sport","score":18.86545932,"snippet":"Transferrin is a key protein for iron transport in the blood and is often used in sports contexts as a marker of iron status. Low transferrin levels can indicate iron deficiency anemia, which impairs endurance performance. However, the evidence for using transferrin alone as a direct biomarker for performance optimization is weak. Interpretation is complicated by factors such as inflammation, training load, and individual variability. Moreover, the provided context lacks specific studies or guidelines that support the evidence-based use of transferrin in sports. Therefore, a conservative assessment is warranted: transferrin can be useful as part of a comprehensive iron status panel (includin","sources":[],"title":"Evidence check: Transferrin in the context of Sport","url":"https://tikki.wiki/wissen/gesundheit/frage/public-953ad35dbc6527e293f6592a/evidence-check-transferrin-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 question about typical costs for a Sportgene Check cannot be answered from the provided context. The knowledge base contains information on DNA tests, cortisol, ferritin, and specific gene variants, but no pricing data. Costs for such tests are typically listed on the provider's website (e.g., MyBody-X) and may vary based on the test scope (e.g., sport genetics vs. comprehensive health) and promotional offers. Without explicit cost information in the context, it is not possible to provide a reliable figure. Consumers should check the official site for current prices and be aware of potential additional fees (e.g., for blood draw or consultation). The evidence for this answer is therefore 'unclear'.","area":"gesundheit","canonical_id":"gesundheit:canonical-4903d25e91dbb444020fe438","id":"public-39a3e89dde457a4d0ceac5e4","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Typical costs related to Sportgene Check","score":18.72333077,"snippet":"The question about typical costs for a Sportgene Check cannot be answered from the provided context. The knowledge base contains information on DNA tests, cortisol, ferritin, and specific gene variants, but no pricing data. Costs for such tests are typically listed on the provider's website (e.g., MyBody-X) and may vary based on the test scope (e.g., sport genetics vs. comprehensive health) and promotional offers. Without explicit cost information in the context, it is not possible to provide a reliable figure. Consumers should check the official site for current prices and be aware of potential additional fees (e.g., for blood draw or consultation). The evidence for this answer is therefore","sources":[],"title":"Typical costs related to Sportgene Check","url":"https://tikki.wiki/wissen/gesundheit/frage/public-39a3e89dde457a4d0ceac5e4/typical-costs-related-to-sportgene-check/","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":18.30007989,"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":"Based on the provided context, there is no information suggesting that a Fertility Check (Fruchtbarkeits-Test) is useful for assessing allergies. The context covers ferritin, B12, DNA tests for sports/longevity, and microbiome, but not fertility testing or allergy. A fertility test typically measures reproductive hormones (e.g., AMH, FSH) or genetic markers related to fertility, not allergy markers. Allergies are immune-mediated responses involving IgE, skin tests, or specific genetic variants (e.g., in the MHC region). There is no evidence that a fertility check can predict or diagnose allergies. The evidence level is unclear to marketing-driven. Consumers should not rely on such tests for allergy evaluation. For allergy concerns, clinical testing (skin prick, specific IgE) and an allergist consultation remain the gold standard.","area":"gesundheit","canonical_id":"gesundheit:canonical-d2c30ba98ba664e82c45d6ae","id":"public-b0a17003198b47df682fab5d","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Is Fertility Check | Fruchtbarkeits-Test useful for allergy?","score":17.53729374,"snippet":"Based on the provided context, there is no information suggesting that a Fertility Check (Fruchtbarkeits-Test) is useful for assessing allergies. The context covers ferritin, B12, DNA tests for sports/longevity, and microbiome, but not fertility testing or allergy. A fertility test typically measures reproductive hormones (e.g., AMH, FSH) or genetic markers related to fertility, not allergy markers. Allergies are immune-mediated responses involving IgE, skin tests, or specific genetic variants (e.g., in the MHC region). There is no evidence that a fertility check can predict or diagnose allergies. The evidence level is unclear to marketing-driven. Consumers should not rely on such tests for ","sources":[],"title":"Is Fertility Check | Fruchtbarkeits-Test useful for allergy?","url":"https://tikki.wiki/wissen/gesundheit/frage/public-b0a17003198b47df682fab5d/is-fertility-check-fruchtbarkeits-test-useful-for-allergy/","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":17.06576885,"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"}}],"schema_version":"tikki.search-response.v1"}