{"count":10,"index":{"built_at":"2026-07-27T19:13:49.384467+00:00","public_records":55311,"revision":"be6678e3ec0b72a5beac5f35"},"query":{"area":null,"kind":null,"lang":null,"limit":10,"match_mode":"all_terms","q":"Evidence check: Vitamin D Test in the context of menopause"},"results":[{"answer":"The question of vitamin D testing during menopause is relevant, but evidence for routine screening is mixed. Vitamin D is crucial for bone health, and menopause increases osteoporosis risk due to estrogen decline. A test can identify deficiency, which is common in older women. However, guidelines (e.g., USPSTF, DGE) do not recommend universal screening in asymptomatic individuals. Testing is reasonable in those with risk factors: dark skin, limited sun exposure, obesity, or malabsorption. Detecting deficiency (25(OH)D < 30 nmol/l) typically justifies supplementation, but the benefit of raising levels above 75 nmol/l is not clearly proven. Moreover, many commercial tests lack standardization, affecting comparability. Thus, a vitamin D test can be useful in a targeted clinical context but should not be viewed as a routine preventive measure. The evidence for the test itself (independent of supplementation) is weak. Recommendation: test only after medical evaluation, not as a standalone self-test without guidance.","area":"gesundheit","canonical_id":"gesundheit:canonical-dded04ec2e794a30b742e873","id":"public-95d0dff9c6eb827c1aea9450","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: Vitamin D Test in the context of menopause","score":17.03186406,"snippet":"The question of vitamin D testing during menopause is relevant, but evidence for routine screening is mixed. Vitamin D is crucial for bone health, and menopause increases osteoporosis risk due to estrogen decline. A test can identify deficiency, which is common in older women. However, guidelines (e.g., USPSTF, DGE) do not recommend universal screening in asymptomatic individuals. Testing is reasonable in those with risk factors: dark skin, limited sun exposure, obesity, or malabsorption. Detecting deficiency (25(OH)D < 30 nmol/l) typically justifies supplementation, but the benefit of raising levels above 75 nmol/l is not clearly proven. Moreover, many commercial tests lack standardization,","sources":[],"title":"Evidence check: Vitamin D Test in the context of menopause","url":"https://tikki.wiki/wissen/gesundheit/frage/public-95d0dff9c6eb827c1aea9450/evidence-check-vitamin-d-test-in-the-context-of-menopause/","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":"VKORC1 encodes subunit 1 of the vitamin K epoxide reductase complex, a key enzyme for vitamin K recycling. Vitamin K is essential for activating clotting factors as well as matrix Gla protein (MGP) and osteocalcin – both relevant for vascular calcification and bone metabolism. During menopause, estrogen decline increases risks for osteoporosis and cardiovascular disease. Polymorphisms in VKORC1 (e.g., rs9923231) affect vitamin K cycling and thus may indirectly influence carboxylation of osteocalcin and MGP. Some studies suggest links between VKORC1 variants and bone mineral density or vascular calcification, but the evidence for a direct clinical role in menopause is weak and inconsistent. Most data come from warfarin research or population genetics. For menopause management, general advice on vitamin K-rich foods (kale, broccoli) is more evidence-based than genotyping. Caveat: Direct-to-consumer tests reporting VKORC1 SNPs do not provide validated guidance for menopause. Evidence: mechanistic, insufficient for clinical decisions.","area":"gesundheit","canonical_id":"gesundheit:canonical-f02b798b578c8c7674ebb458","id":"public-6cf6cdf7c0346e2d67433a23","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: VKORC1 in the context of menopause","score":17.00112029,"snippet":"VKORC1 encodes subunit 1 of the vitamin K epoxide reductase complex, a key enzyme for vitamin K recycling. Vitamin K is essential for activating clotting factors as well as matrix Gla protein (MGP) and osteocalcin – both relevant for vascular calcification and bone metabolism. During menopause, estrogen decline increases risks for osteoporosis and cardiovascular disease. Polymorphisms in VKORC1 (e.g., rs9923231) affect vitamin K cycling and thus may indirectly influence carboxylation of osteocalcin and MGP. Some studies suggest links between VKORC1 variants and bone mineral density or vascular calcification, but the evidence for a direct clinical role in menopause is weak and inconsistent. M","sources":[],"title":"Evidence check: VKORC1 in the context of menopause","url":"https://tikki.wiki/wissen/gesundheit/frage/public-6cf6cdf7c0346e2d67433a23/evidence-check-vkorc1-in-the-context-of-menopause/","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":"Measurement of 25-hydroxyvitamin D (25(OH)D) in blood is the standard marker for vitamin D status. In menopause, the risk of osteoporosis increases, making adequate vitamin D levels particularly important. Common cutoffs (deficiency <20 ng/mL, insufficiency 20–30 ng/mL, sufficiency ≥30 ng/mL) are based on cross-sectional studies and are widely used clinically, but not universally standardized. Evidence for a causal benefit of supplementation in menopause is moderate: observational studies show associations with bone density and fall risk, but randomized controlled trials yield inconsistent results. Importantly, DNA tests for vitamin D gene variants (e.g., VDR, GC) are not suitable for clinical decision-making – only a blood test provides reliable values. Additionally, immunoassays may over- or underestimate true levels; LC-MS/MS is the gold standard. Supplementation without prior measurement is not recommended, as both deficiency and toxicity should be avoided. The available studies (all 2025–2026, cross-sectional) confirm prevalence of deficiency but provide no interventional data. Therefore, evidence is rated as human-moderate.","area":"gesundheit","canonical_id":"gesundheit:canonical-00328b4146fbb0e083487527","id":"public-a8797a8e9bd09c0ad5beec4e","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: Vitamin D 25-OH in the context of menopause","score":16.96294348,"snippet":"Measurement of 25-hydroxyvitamin D (25(OH)D) in blood is the standard marker for vitamin D status. In menopause, the risk of osteoporosis increases, making adequate vitamin D levels particularly important. Common cutoffs (deficiency <20 ng/mL, insufficiency 20–30 ng/mL, sufficiency ≥30 ng/mL) are based on cross-sectional studies and are widely used clinically, but not universally standardized. Evidence for a causal benefit of supplementation in menopause is moderate: observational studies show associations with bone density and fall risk, but randomized controlled trials yield inconsistent results. Importantly, DNA tests for vitamin D gene variants (e.g., VDR, GC) are not suitable for clinic","sources":[],"title":"Evidence check: Vitamin D 25-OH in the context of menopause","url":"https://tikki.wiki/wissen/gesundheit/frage/public-a8797a8e9bd09c0ad5beec4e/evidence-check-vitamin-d-25-oh-in-the-context-of-menopause/","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 on VDR (vitamin D receptor) in the context of menopause is very limited. It only contains allele frequency data for the rs2228570 (FokI) variant across various populations, with no clinical studies linking it to menopausal outcomes, bone density, or hormone levels. VDR is a nuclear receptor that mediates vitamin D action, theoretically influencing calcium metabolism and bone health – both relevant during menopause. However, from the given context, there is no strong evidence that rs2228570 directly affects menopausal symptoms or osteoporosis risk. The evidence grade is therefore unclear. Direct-to-consumer (DTC) genetic tests often overstate the impact of such variants. Clinical assessment of vitamin D status and bone densitometry are more informative than a single genetic marker. Without further studies or guidelines, supplementation decisions should not be based solely on this SNP.","area":"gesundheit","canonical_id":"gesundheit:canonical-74f94c14138a6d397ae9fa4b","id":"public-64d60c2cc4b494b6db0039eb","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: VDR in the context of menopause","score":16.92882937,"snippet":"The provided context on VDR (vitamin D receptor) in the context of menopause is very limited. It only contains allele frequency data for the rs2228570 (FokI) variant across various populations, with no clinical studies linking it to menopausal outcomes, bone density, or hormone levels. VDR is a nuclear receptor that mediates vitamin D action, theoretically influencing calcium metabolism and bone health – both relevant during menopause. However, from the given context, there is no strong evidence that rs2228570 directly affects menopausal symptoms or osteoporosis risk. The evidence grade is therefore unclear. Direct-to-consumer (DTC) genetic tests often overstate the impact of such variants. ","sources":[],"title":"Evidence check: VDR in the context of menopause","url":"https://tikki.wiki/wissen/gesundheit/frage/public-64d60c2cc4b494b6db0039eb/evidence-check-vdr-in-the-context-of-menopause/","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 direct studies or data linking HLA-DQ2 to menopause. HLA-DQ2 is a genetic marker primarily associated with celiac disease. During menopause, undiagnosed celiac disease could exacerbate bone health issues due to malabsorption of nutrients like vitamin D and calcium – but this is an indirect, mechanistic link. The sources discuss vitamin D deficiency, DNA testing, and microbiome, but neither HLA-DQ2 nor menopause is explicitly addressed. Direct-to-consumer genetic tests analyzing HLA-DQ2 can indicate increased celiac risk, but evidence for a specific relevance in menopause is weak and based on extrapolation. Without controlled studies, the predictive value remains limited. Women experiencing menopausal symptoms should not rely solely on genetic testing but seek medical evaluation.","area":"gesundheit","canonical_id":"gesundheit:canonical-4ede03f74a5e9c76a01ae98d","id":"public-ddeec925319cf19ae67952ca","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: HLA-DQ2 in the context of menopause","score":16.85208811,"snippet":"The provided context contains no direct studies or data linking HLA-DQ2 to menopause. HLA-DQ2 is a genetic marker primarily associated with celiac disease. During menopause, undiagnosed celiac disease could exacerbate bone health issues due to malabsorption of nutrients like vitamin D and calcium – but this is an indirect, mechanistic link. The sources discuss vitamin D deficiency, DNA testing, and microbiome, but neither HLA-DQ2 nor menopause is explicitly addressed. Direct-to-consumer genetic tests analyzing HLA-DQ2 can indicate increased celiac risk, but evidence for a specific relevance in menopause is weak and based on extrapolation. Without controlled studies, the predictive value rema","sources":[],"title":"Evidence check: HLA-DQ2 in the context of menopause","url":"https://tikki.wiki/wissen/gesundheit/frage/public-ddeec925319cf19ae67952ca/evidence-check-hla-dq2-in-the-context-of-menopause/","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 evidence for VKORC1 in the context of menopause is weak. VKORC1 encodes an enzyme that recycles vitamin K, which is crucial for blood coagulation and bone metabolism. During menopause, estrogen decline accelerates bone loss. Vitamin K activates osteocalcin, a bone-building protein. In theory, VKORC1 variants could affect vitamin K availability and thus influence osteoporosis risk. However, no strong human studies directly link VKORC1 polymorphisms to menopausal symptoms or bone density changes. The evidence is mechanistic at best. VKORC1 testing is primarily used for warfarin dosing, not menopause management. Relying solely on a VKORC1 DNA result without clinical markers (e.g., vitamin K levels, bone density) is not actionable. For personalized advice during menopause, consult a specialist. Evidence level: unclear/mechanistic.","area":"gesundheit","canonical_id":"gesundheit:canonical-5d7fe3721273d4ea8c369a31","id":"public-bca8a47004c3077026672e31","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: VKORC1 in the context of Wechseljahre","score":16.82725018,"snippet":"The evidence for VKORC1 in the context of menopause is weak. VKORC1 encodes an enzyme that recycles vitamin K, which is crucial for blood coagulation and bone metabolism. During menopause, estrogen decline accelerates bone loss. Vitamin K activates osteocalcin, a bone-building protein. In theory, VKORC1 variants could affect vitamin K availability and thus influence osteoporosis risk. However, no strong human studies directly link VKORC1 polymorphisms to menopausal symptoms or bone density changes. The evidence is mechanistic at best. VKORC1 testing is primarily used for warfarin dosing, not menopause management. Relying solely on a VKORC1 DNA result without clinical markers (e.g., vitamin K","sources":[],"title":"Evidence check: VKORC1 in the context of Wechseljahre","url":"https://tikki.wiki/wissen/gesundheit/frage/public-bca8a47004c3077026672e31/evidence-check-vkorc1-in-the-context-of-wechseljahre/","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 LCT (lactase gene) in the context of menopause primarily concerns calcium absorption and bone health. During menopause, estrogen decline increases osteoporosis risk. Reduced lactase activity (lactose intolerance) might impair calcium intake from dairy. However, evidence for a direct link between LCT variants and osteoporosis is moderate. Studies show lactose intolerance can reduce calcium absorption, but many individuals compensate via other calcium sources or adjusted diets. Bone density is influenced by multiple factors (exercise, vitamin D, genetics). A DNA test for LCT can indicate possible lactose intolerance but cannot provide personalized osteoporosis prevention. Clinical relevance is limited; bone density scans and calcium/vitamin D supplementation as needed are more evidence-based. Caveat: No randomized trials show that LCT-based diet improves menopause-related bone health. Evidence: human-moderate.","area":"gesundheit","canonical_id":"gesundheit:canonical-b0559439125ace3175b9e7f8","id":"public-5d6c86c87a6f03437154cfed","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: LCT in the context of menopause","score":16.78493654,"snippet":"The question about LCT (lactase gene) in the context of menopause primarily concerns calcium absorption and bone health. During menopause, estrogen decline increases osteoporosis risk. Reduced lactase activity (lactose intolerance) might impair calcium intake from dairy. However, evidence for a direct link between LCT variants and osteoporosis is moderate. Studies show lactose intolerance can reduce calcium absorption, but many individuals compensate via other calcium sources or adjusted diets. Bone density is influenced by multiple factors (exercise, vitamin D, genetics). A DNA test for LCT can indicate possible lactose intolerance but cannot provide personalized osteoporosis prevention. Cl","sources":[],"title":"Evidence check: LCT in the context of menopause","url":"https://tikki.wiki/wissen/gesundheit/frage/public-5d6c86c87a6f03437154cfed/evidence-check-lct-in-the-context-of-menopause/","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 a Vitamin D test in the context of menopause is not directly addressed in the provided context. The context focuses on DNA tests and food sensitivities, not on biomarkers like vitamin D. Generally, vitamin D is important for bone health during menopause due to estrogen decline increasing osteoporosis risk. However, the context lacks any evidence supporting the use of a vitamin D test in this phase. Evidence for direct-to-consumer (DTC) tests is generally weak (PMID: 38474735). Many companies market vitamin D tests as essential, yet guidelines (e.g., Endocrine Society) recommend routine screening only for at-risk groups. The context contains no studies that support vitamin D testing in menopause. Therefore, the evidence is rated as 'marketing' or 'unclear'. A vitamin D deficiency can be assessed via a blood test (25-hydroxyvitamin D) by a doctor, but the benefit of a DTC test is questionable. Without specific evidence from the context, consult a healthcare professional.","area":"gesundheit","canonical_id":"gesundheit:canonical-9ac2fc563ba2013f2889adaf","id":"public-1c48acd46212de787255d3a8","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: Vitamin D Test in the context of Wechseljahre","score":16.76716503,"snippet":"The question about a Vitamin D test in the context of menopause is not directly addressed in the provided context. The context focuses on DNA tests and food sensitivities, not on biomarkers like vitamin D. Generally, vitamin D is important for bone health during menopause due to estrogen decline increasing osteoporosis risk. However, the context lacks any evidence supporting the use of a vitamin D test in this phase. Evidence for direct-to-consumer (DTC) tests is generally weak (PMID: 38474735). Many companies market vitamin D tests as essential, yet guidelines (e.g., Endocrine Society) recommend routine screening only for at-risk groups. The context contains no studies that support vitamin ","sources":[],"title":"Evidence check: Vitamin D Test in the context of Wechseljahre","url":"https://tikki.wiki/wissen/gesundheit/frage/public-1c48acd46212de787255d3a8/evidence-check-vitamin-d-test-in-the-context-of-wechseljahre/","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 vitamin B12 in the context of menopause is not directly addressed in the provided context. The documents cover DNA tests, ferritin measurements, and general health checklists – no specific content on B12 or menopause. Therefore, the answer must rely on general medical knowledge: Vitamin B12 is crucial for nerve function and red blood cell formation; deficiency becomes more common with age due to reduced stomach acid (atrophic gastritis), impairing B12 absorption from food. During menopause, hormonal changes and medications (e.g., metformin, proton pump inhibitors) may further increase risk. Symptoms like fatigue, brain fog, or tingling in hands/feet overlap with typical menopause complaints, making diagnosis challenging. A blood test for holotranscobalamin (active B12) or methylmalonic acid (MMA) is more sensitive than serum B12 alone. However, evidence for a specific B12 requirement during menopause is weak, based mostly on observational studies and physiological reasoning. Without direct studies or guidelines from the context, the evidence must be rated as unclear. Supplementation should only follow medical assessment and testing, as excess B12 is rare but possible. In summary: B12 is relevant, but the data on menopause is thin; individual risk factors are key.","area":"gesundheit","canonical_id":"gesundheit:canonical-3007a73d11e502e2ea52468a","id":"public-dfedc406704a2152695f1ff6","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: B12 in the context of menopause","score":16.75776823,"snippet":"The question about vitamin B12 in the context of menopause is not directly addressed in the provided context. The documents cover DNA tests, ferritin measurements, and general health checklists – no specific content on B12 or menopause. Therefore, the answer must rely on general medical knowledge: Vitamin B12 is crucial for nerve function and red blood cell formation; deficiency becomes more common with age due to reduced stomach acid (atrophic gastritis), impairing B12 absorption from food. During menopause, hormonal changes and medications (e.g., metformin, proton pump inhibitors) may further increase risk. Symptoms like fatigue, brain fog, or tingling in hands/feet overlap with typical me","sources":[],"title":"Evidence check: B12 in the context of menopause","url":"https://tikki.wiki/wissen/gesundheit/frage/public-dfedc406704a2152695f1ff6/evidence-check-b12-in-the-context-of-menopause/","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":"FUT2 encodes a fucosyltransferase that determines secretor status and influences vitamin B12 absorption. During menopause, B12 levels often decline, and FUT2 variants could theoretically exacerbate this. However, no direct studies link FUT2 to menopausal symptoms or hormonal changes. The evidence is mechanistic and indirect. A DNA test may indicate a predisposition for lower B12, but it cannot replace blood testing. For menopause-related concerns, medical evaluation is essential. Consumer DNA tests have limited utility here.","area":"gesundheit","canonical_id":"gesundheit:canonical-25b4f220f0d5420645120cd5","id":"public-4231b983dd6f7b0f7b94fc8e","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: FUT2 in the context of menopause","score":16.7447197,"snippet":"FUT2 encodes a fucosyltransferase that determines secretor status and influences vitamin B12 absorption. During menopause, B12 levels often decline, and FUT2 variants could theoretically exacerbate this. However, no direct studies link FUT2 to menopausal symptoms or hormonal changes. The evidence is mechanistic and indirect. A DNA test may indicate a predisposition for lower B12, but it cannot replace blood testing. For menopause-related concerns, medical evaluation is essential. Consumer DNA tests have limited utility here.","sources":[],"title":"Evidence check: FUT2 in the context of menopause","url":"https://tikki.wiki/wissen/gesundheit/frage/public-4231b983dd6f7b0f7b94fc8e/evidence-check-fut2-in-the-context-of-menopause/","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"}