{"count":7,"index":{"built_at":"2026-07-28T03:44:24.469466+00:00","public_records":55311,"revision":"e5eb289cfa6e4c187a340476"},"query":{"area":null,"kind":null,"lang":null,"limit":10,"match_mode":"all_terms","q":"Evidence check: IgG in the context of Sport"},"results":[{"answer":"The use of IgG testing in the context of sport lacks robust scientific support. While IgE tests are validated for immediate allergic reactions, IgG tests are often marketed for food intolerances or performance optimization. Current evidence indicates that IgG levels frequently reflect normal immune exposure to foods and do not reliably correlate with symptoms or athletic performance. Studies have not demonstrated a consistent benefit for sport performance, recovery, or body composition based on IgG-guided dietary changes. MyBody-X does not appear to offer a specific IgG sport test; the allergy test product page does not specify IgG, and the Q&A database states that IgG tests are not clinically validated for food sensitivities. Athletes should rely on evidence-based nutrition strategies rather than IgG results. Consulting a physician or sports dietitian is recommended for genuine intolerances. The evidence level is unclear to weak.","area":"gesundheit","canonical_id":"gesundheit:canonical-c305e146ebcb36abb5389dee","id":"public-acd1e3a624d6ba00d497080c","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: IgG in the context of Sport","score":21.2242303,"snippet":"The use of IgG testing in the context of sport lacks robust scientific support. While IgE tests are validated for immediate allergic reactions, IgG tests are often marketed for food intolerances or performance optimization. Current evidence indicates that IgG levels frequently reflect normal immune exposure to foods and do not reliably correlate with symptoms or athletic performance. Studies have not demonstrated a consistent benefit for sport performance, recovery, or body composition based on IgG-guided dietary changes. MyBody-X does not appear to offer a specific IgG sport test; the allergy test product page does not specify IgG, and the Q&A database states that IgG tests are not clinical","sources":[],"title":"Evidence check: IgG in the context of Sport","url":"https://tikki.wiki/wissen/gesundheit/frage/public-acd1e3a624d6ba00d497080c/evidence-check-igg-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":"IgG food intolerance tests are often marketed to athletes to supposedly identify performance-hindering foods. However, the scientific evidence is weak: IgG antibodies merely indicate immune exposure, not intolerance or inflammation. Studies show no reliable predictive value for athletic performance or recovery. Moreover, unnecessary dietary restrictions risk nutrient deficiencies. For athletes, validated methods like physician-supervised elimination diets or breath tests for lactose/fructose intolerance are more appropriate. This test is best classified as marketing, not evidence-based diagnostics.","area":"gesundheit","canonical_id":"gesundheit:canonical-8db74f5429fdf46f37597e8b","id":"public-68f6c047ca9f0e39c3a7c5f6","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: IgG Unverträglichkeitstest in the context of Sport","score":21.19611258,"snippet":"IgG food intolerance tests are often marketed to athletes to supposedly identify performance-hindering foods. However, the scientific evidence is weak: IgG antibodies merely indicate immune exposure, not intolerance or inflammation. Studies show no reliable predictive value for athletic performance or recovery. Moreover, unnecessary dietary restrictions risk nutrient deficiencies. For athletes, validated methods like physician-supervised elimination diets or breath tests for lactose/fructose intolerance are more appropriate. This test is best classified as marketing, not evidence-based diagnostics.","sources":[],"title":"Evidence check: IgG Unverträglichkeitstest in the context of Sport","url":"https://tikki.wiki/wissen/gesundheit/frage/public-68f6c047ca9f0e39c3a7c5f6/evidence-check-igg-unvertraeglichkeitstest-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 query asks for an evidence check on the MY FOODBOOK test in a sports context. The provided context contains no specific information about this product. In general, food sensitivity or intolerance tests (e.g., IgG-based) marketed to athletes lack robust evidence for improving performance or recovery. They measure immune reactions that do not necessarily correlate with symptoms or athletic outcomes. No validated cutoffs or sport-specific norms are available. The evidence grade is 'unclear' or 'marketing'. Athletes are better served by evidence-based approaches: sports nutrition counseling, validated biomarker testing (e.g., iron, vitamin D), and elimination diets guided by a professional. The test should not replace medical advice or be used for clinical decisions.","area":"gesundheit","canonical_id":"gesundheit:canonical-983718ab674758797816ccb7","id":"public-d2dd9e0bb8763f9df57a7c8f","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: MY FOODBOOK in the context of Sport","score":19.88749069,"snippet":"The query asks for an evidence check on the MY FOODBOOK test in a sports context. The provided context contains no specific information about this product. In general, food sensitivity or intolerance tests (e.g., IgG-based) marketed to athletes lack robust evidence for improving performance or recovery. They measure immune reactions that do not necessarily correlate with symptoms or athletic outcomes. No validated cutoffs or sport-specific norms are available. The evidence grade is 'unclear' or 'marketing'. Athletes are better served by evidence-based approaches: sports nutrition counseling, validated biomarker testing (e.g., iron, vitamin D), and elimination diets guided by a professional. ","sources":[],"title":"Evidence check: MY FOODBOOK in the context of Sport","url":"https://tikki.wiki/wissen/gesundheit/frage/public-d2dd9e0bb8763f9df57a7c8f/evidence-check-my-foodbook-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":"tTG IgA (tissue transglutaminase IgA) is a well-established serological marker for celiac disease. In the context of sport, it is occasionally measured in athletes with unexplained gastrointestinal symptoms, fatigue, or performance decline. However, evidence for routine screening in asymptomatic athletes is weak. Celiac disease affects about 1% of the population, and undiagnosed cases can impair athletic performance due to malabsorption of iron, vitamin D, and B12. Yet tTG IgA is not a direct performance or recovery biomarker. A positive test requires gastroenterological follow-up with duodenal biopsy. False positives can occur, especially in IgA deficiency or other autoimmune conditions. Testing should be reserved for clinical suspicion, not as a general sports screening. Evidence is based on clinical practice and guidelines, not on specific sport studies. Caveat: A negative test does not rule out celiac disease, particularly in IgA deficiency (then IgG-based tests are needed).","area":"gesundheit","canonical_id":"gesundheit:canonical-ea109257269ed1f70da1b7a5","id":"public-c3143b52d4020e7a7414ce10","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: tTG IgA in the context of Sport","score":19.25114061,"snippet":"tTG IgA (tissue transglutaminase IgA) is a well-established serological marker for celiac disease. In the context of sport, it is occasionally measured in athletes with unexplained gastrointestinal symptoms, fatigue, or performance decline. However, evidence for routine screening in asymptomatic athletes is weak. Celiac disease affects about 1% of the population, and undiagnosed cases can impair athletic performance due to malabsorption of iron, vitamin D, and B12. Yet tTG IgA is not a direct performance or recovery biomarker. A positive test requires gastroenterological follow-up with duodenal biopsy. False positives can occur, especially in IgA deficiency or other autoimmune conditions. Te","sources":[],"title":"Evidence check: tTG IgA in the context of Sport","url":"https://tikki.wiki/wissen/gesundheit/frage/public-c3143b52d4020e7a7414ce10/evidence-check-ttg-iga-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":18.91200303,"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 solely on the provided context, there is no information about when a CRP Check is actually useful. The context covers IgG food sensitivity tests, DNA tests for allergies, gluten avoidance, longevity tests, and sports genetics, but does not mention C-reactive protein (CRP). In general medical practice, CRP is useful for detecting and monitoring inflammation, such as in infections or chronic inflammatory conditions. High-sensitivity CRP (hs-CRP) can also aid in cardiovascular risk assessment. However, without supporting context, the evidence for the utility of a CRP Check in this specific setting is unclear. Consumers should rely on clinical guidance rather than direct-to-consumer marketing claims.","area":"gesundheit","canonical_id":"gesundheit:canonical-cc4d34442b32c36442f3ce02","id":"public-f4413b25cfac0e8fc62553e8","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"When is CRP Check actually useful?","score":18.35544391,"snippet":"Based solely on the provided context, there is no information about when a CRP Check is actually useful. The context covers IgG food sensitivity tests, DNA tests for allergies, gluten avoidance, longevity tests, and sports genetics, but does not mention C-reactive protein (CRP). In general medical practice, CRP is useful for detecting and monitoring inflammation, such as in infections or chronic inflammatory conditions. High-sensitivity CRP (hs-CRP) can also aid in cardiovascular risk assessment. However, without supporting context, the evidence for the utility of a CRP Check in this specific setting is unclear. Consumers should rely on clinical guidance rather than direct-to-consumer market","sources":[],"title":"When is CRP Check actually useful?","url":"https://tikki.wiki/wissen/gesundheit/frage/public-f4413b25cfac0e8fc62553e8/when-is-crp-check-actually-useful/","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 a 'Fitness or Lifestyle Check' in the context of gut health is scientifically challenging. The provided contexts show that many commercial tests – such as food intolerance tests (IgG) or genetic analyses for longevity (e.g., SIRT1) – rely on weak or purely mechanistic evidence. For concrete fitness or lifestyle recommendations based on the microbiome, there are currently no validated, clinically proven biomarkers. The evidence for SNP-based claims (e.g., MTHFR, CYP1A2) is mostly associative and not predictive for individual training or dietary adjustments. A microbiome test can give rough indications of bacterial composition, but cannot tell whether you tolerate certain sports better or how to optimize your diet. The overall evidence is best classified as 'marketing': the promises far exceed the scientific basis. Consumers should not rely on such test results but instead seek medical advice and established methods (e.g., elimination diet, blood work). Without robust clinical trials, the benefit for fitness and lifestyle remains speculative.","area":"gesundheit","canonical_id":"gesundheit:canonical-45898c19596acde5a49835ba","id":"public-18b9ba5b8b3dcb71aacb4690","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: Fitness | LifestyleCheck in the context of gut health","score":18.24437141,"snippet":"The question of a 'Fitness or Lifestyle Check' in the context of gut health is scientifically challenging. The provided contexts show that many commercial tests – such as food intolerance tests (IgG) or genetic analyses for longevity (e.g., SIRT1) – rely on weak or purely mechanistic evidence. For concrete fitness or lifestyle recommendations based on the microbiome, there are currently no validated, clinically proven biomarkers. The evidence for SNP-based claims (e.g., MTHFR, CYP1A2) is mostly associative and not predictive for individual training or dietary adjustments. A microbiome test can give rough indications of bacterial composition, but cannot tell whether you tolerate certain sport","sources":[],"title":"Evidence check: Fitness | LifestyleCheck in the context of gut health","url":"https://tikki.wiki/wissen/gesundheit/frage/public-18b9ba5b8b3dcb71aacb4690/evidence-check-fitness-lifestylecheck-in-the-context-of-gut-health/","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"}