{"product_id":"nad-blood-test","title":"NAD+ Blood Test","description":"\u003c!-- \nProduct: NAD+ Level Blood Test (Home Test Kit)\nCollection: Longevity \u0026 Cellular Health\nCategory: Medical Tests\nWebsite: Meditest\nBiomarkers: 2 (NAD+, NADH)\nSample Type: Finger-prick Blood\nTAT: 7-10 working days\n--\u003e\n\n\u003cdiv class=\"product-listing-container\"\u003e\n    \u003cstyle\u003e\n        .product-listing-container { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; line-height: 1.6; color: #333; background-color: #fff; max-width: 100%; overflow: hidden; }\n        .product-listing-container * { box-sizing: border-box; }\n        .product-listing-container .product-description { margin-bottom: 20px; font-size: 16px; line-height: 1.8; }\n        .product-listing-container .results-timing { margin: 20px 0; font-size: 16px; }\n        .product-listing-container .results-timing strong { font-size: 18px; color: #2c7a7b; }\n        .product-listing-container .results-timing p { margin-top: 10px; font-size: 14px; color: #4a5568; }\n        \n        .product-listing-container .dob-notice { background-color: #fff8e6; border-left: 4px solid #f0b429; padding: 15px; margin: 15px 0; border-radius: 4px; }\n        .product-listing-container .dob-notice strong { color: #856404; }\n        .product-listing-container .dob-notice p { margin: 0; color: #856404; }\n        \n        .product-listing-container .sample-collection-section, .product-listing-container .disclaimer-section { border-left: 4px solid #2c7a7b; padding: 20px; margin: 20px 0; border-radius: 4px; }\n        .product-listing-container .disclaimer-section { background-color: #f8fafc; }\n        .product-listing-container h3 { color: #2c7a7b; font-size: 18px; margin-bottom: 15px; font-weight: 700; }\n        \n        .product-listing-container input[type=\"checkbox\"] { display: none; }\n        .product-listing-container .main-section { margin: 20px 0; border: 1px solid #e2e8f0; border-radius: 6px; overflow: hidden; }\n        .product-listing-container .main-section-header { background-color: #2c7a7b; color: white; padding: 18px 20px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; user-select: none; }\n        .product-listing-container .main-section-title { font-size: 18px; font-weight: 700; margin: 0; flex: 1; }\n        .product-listing-container .main-dropdown-icon { transition: transform 0.3s ease; }\n        .product-listing-container .main-section-content { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }\n        .product-listing-container input[type=\"checkbox\"]:checked + .main-section .main-section-content { max-height: 50000px; }\n        .product-listing-container input[type=\"checkbox\"]:checked + .main-section .main-dropdown-icon { transform: rotate(180deg); }\n        .product-listing-container .main-section-inner { padding: 20px; }\n\n        .product-listing-container .kit-contents-list { list-style: none; padding: 0; margin: 15px 0; }\n        .product-listing-container .kit-contents-list li { padding: 10px 0; border-bottom: 1px solid #e2e8f0; display: flex; justify-content: space-between; align-items: center; }\n        .product-listing-container .kit-contents-list li:last-child { border-bottom: none; }\n        .product-listing-container .item-qty { background-color: #2c7a7b; color: white; padding: 2px 10px; border-radius: 12px; font-size: 13px; font-weight: 600; }\n\n        .product-listing-container .category-section { margin-bottom: 15px; border: 1px solid #e2e8f0; border-radius: 4px; overflow: hidden; }\n        .product-listing-container .category-header { background-color: #4a9ea1; color: white; padding: 14px 16px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }\n        .product-listing-container .category-title { font-size: 17px; font-weight: 600; margin: 0; }\n        .product-listing-container .category-dropdown-icon { transition: transform 0.3s ease; }\n        .product-listing-container .category-content { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }\n        .product-listing-container input[type=\"checkbox\"]:checked + .category-section .category-content { max-height: 15000px; }\n        .product-listing-container input[type=\"checkbox\"]:checked + .category-section .category-dropdown-icon { transform: rotate(180deg); }\n        .product-listing-container .category-biomarkers { padding: 15px; background-color: #f8fafc; }\n        \n        .product-listing-container .biomarker-item { margin-bottom: 10px; border: 1px solid #e2e8f0; border-radius: 4px; background-color: white; }\n        .product-listing-container .biomarker-item:last-child { margin-bottom: 0; }\n        .product-listing-container .biomarker-header { padding: 12px 15px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }\n        .product-listing-container .biomarker-name { font-weight: 600; color: #2c7a7b; }\n        .product-listing-container .dropdown-icon { color: #2c7a7b; transition: transform 0.3s ease; }\n        .product-listing-container .biomarker-content { max-height: 0; overflow: hidden; transition: all 0.3s ease; padding: 0 15px; background-color: #f8fafc; }\n        .product-listing-container input[type=\"checkbox\"]:checked + .biomarker-item .biomarker-content { max-height: 2000px; padding: 15px; border-top: 1px solid #e2e8f0; }\n        .product-listing-container input[type=\"checkbox\"]:checked + .biomarker-item .dropdown-icon { transform: rotate(180deg); }\n    \u003c\/style\u003e\n\n    \u003c!-- Section 1: Product Description --\u003e\n    \u003cdiv class=\"product-description\"\u003e\n        \u003cp\u003eMeasure your cellular NAD+ and NADH levels with this at-home blood test. NAD+ (Nicotinamide Adenine Dinucleotide) is a critical coenzyme found in every cell of your body, playing an essential role in energy metabolism, DNA repair, and the regulation of sirtuins — the proteins associated with healthy ageing. As we age, NAD+ levels naturally decline, which is why monitoring this biomarker has become central to longevity science.\u003c\/p\u003e\n        \n        \u003cp\u003eThis test is particularly valuable if you are supplementing with NAD+ precursors such as NMN (Nicotinamide Mononucleotide) or NR (Nicotinamide Riboside), receiving NAD+ IV therapy, or following a longevity protocol. By measuring both the oxidised (NAD+) and reduced (NADH) forms, the test provides insight into your cellular redox balance and metabolic efficiency.\u003c\/p\u003e\n        \n        \u003cp\u003e\u003cstrong\u003eWhat's covered in the price:\u003c\/strong\u003e Your kit contains everything needed to collect a finger-prick blood sample at home. Simply follow the instructions, post your sample using the prepaid envelope, and receive your results within 7–10 working days.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n    \u003c!-- Section 2: Results Timing --\u003e\n    \u003cdiv class=\"results-timing\"\u003e\n        \u003cstrong\u003eResults ready within 7–10 working days\u003c\/strong\u003e\n        \u003cp\u003eYour sample goes to a UKAS accredited laboratory meeting ISO 15189 standards. You will receive a detailed digital report including your NAD+ and NADH concentrations, the NAD+\/NADH ratio, and interpretation guidance.\u003c\/p\u003e\n        \n        \u003cdiv class=\"dob-notice\"\u003e\n            \u003cp\u003e\u003cstrong\u003eAction Required:\u003c\/strong\u003e Once your order confirmation arrives, please reply to the email with your date of birth. This helps us process your order quickly and avoid any delays.\u003c\/p\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n    \n    \u003c!-- Section 3: Sample Collection --\u003e\n    \u003cdiv class=\"sample-collection-section\"\u003e\n        \u003ch3\u003eHome Test Kit\u003c\/h3\u003e\n        \u003cp\u003eThis test uses a simple finger-prick blood collection method that you can complete at home. The kit includes everything you need to collect a small blood sample from your fingertip. No appointment or clinic visit is required—simply follow the step-by-step instructions included in your kit.\u003c\/p\u003e\n        \u003cp\u003e\u003cstrong\u003eFor the best results:\u003c\/strong\u003e\u003c\/p\u003e\n        \u003cul\u003e\n            \u003cli\u003eRead all instructions carefully before starting\u003c\/li\u003e\n            \u003cli\u003eWarm your hands before collection to improve blood flow\u003c\/li\u003e\n            \u003cli\u003ePost your sample on the same day you collect it\u003c\/li\u003e\n            \u003cli\u003eSend your sample Monday to Wednesday to avoid weekend delays in transit\u003c\/li\u003e\n            \u003cli\u003eDo not post samples on weekends or before public holidays\u003c\/li\u003e\n        \u003c\/ul\u003e\n    \u003c\/div\u003e\n    \n    \u003c!-- Section 4: Kit Contents --\u003e\n    \u003cinput type=\"checkbox\" id=\"meditest-kit-contents-toggle-nad\"\u003e\n    \u003cdiv class=\"main-section\"\u003e\n        \u003clabel for=\"meditest-kit-contents-toggle-nad\" class=\"main-section-header\"\u003e\n            \u003ch2 class=\"main-section-title\"\u003eWhat's in Your Kit?\u003c\/h2\u003e\n            \u003cspan class=\"main-dropdown-icon\"\u003e▼\u003c\/span\u003e\n        \u003c\/label\u003e\n        \u003cdiv class=\"main-section-content\"\u003e\n            \u003cdiv class=\"main-section-inner\"\u003e\n                \u003cul class=\"kit-contents-list\"\u003e\n                    \u003cli\u003e\n\u003cspan\u003eSterile lancets (single-use finger-prick devices)\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×2\u003c\/span\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cspan\u003eBlood collection tube (microtainer)\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×1\u003c\/span\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cspan\u003eAlcohol cleansing wipes\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×2\u003c\/span\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cspan\u003eSterile gauze pad\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×1\u003c\/span\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cspan\u003eAdhesive plaster\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×1\u003c\/span\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cspan\u003eBiohazard specimen bag\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×1\u003c\/span\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cspan\u003ePrepaid return envelope\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×1\u003c\/span\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cspan\u003eStep-by-step instructions\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×1\u003c\/span\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cspan\u003eTest request form\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×1\u003c\/span\u003e\n\u003c\/li\u003e\n                \u003c\/ul\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n    \n    \u003c!-- Section 5: Special Instructions --\u003e\n    \u003cinput type=\"checkbox\" id=\"meditest-special-instructions-toggle-nad\"\u003e\n    \u003cdiv class=\"main-section\"\u003e\n        \u003clabel for=\"meditest-special-instructions-toggle-nad\" class=\"main-section-header\"\u003e\n            \u003ch2 class=\"main-section-title\"\u003eSpecial Instructions\u003c\/h2\u003e\n            \u003cspan class=\"main-dropdown-icon\"\u003e▼\u003c\/span\u003e\n        \u003c\/label\u003e\n        \u003cdiv class=\"main-section-content\"\u003e\n            \u003cdiv class=\"main-section-inner\"\u003e\n                \u003cp\u003e\u003cstrong\u003eFasting:\u003c\/strong\u003e Fasting is not required for this test. You may eat and drink normally before collecting your sample.\u003c\/p\u003e\n                \u003cp\u003e\u003cstrong\u003eSupplements:\u003c\/strong\u003e Continue taking your NAD+ precursors (NMN, NR) or other supplements as usual. This ensures the test reflects your current supplementation status. If you wish to establish a baseline before starting a new protocol, consider testing prior to beginning supplementation.\u003c\/p\u003e\n                \u003cp\u003e\u003cstrong\u003eHydration:\u003c\/strong\u003e Drink plenty of water before collection to improve blood flow and make the finger-prick easier.\u003c\/p\u003e\n                \u003cp\u003e\u003cstrong\u003eTiming:\u003c\/strong\u003e Morning samples are preferred but not mandatory. Try to collect at a consistent time if you plan to retest for comparison.\u003c\/p\u003e\n                \u003cp\u003e\u003cstrong\u003eBiotin Supplements:\u003c\/strong\u003e Stop biotin (vitamin B7) supplements for at least 2 days before testing. Biotin can interfere with some assays, potentially causing inaccurate results.\u003c\/p\u003e\n                \u003cp\u003e\u003cstrong\u003eReturn Shipping:\u003c\/strong\u003e Post your sample on the same day as collection, ideally Monday to Wednesday to avoid weekend delays. Do not post samples on Fridays or before public holidays.\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- Section 6: Biomarkers --\u003e\n    \u003cinput type=\"checkbox\" id=\"meditest-biomarkers-toggle-nad\"\u003e\n    \u003cdiv class=\"main-section\"\u003e\n        \u003clabel for=\"meditest-biomarkers-toggle-nad\" class=\"main-section-header\"\u003e\n            \u003ch2 class=\"main-section-title\"\u003eBiomarkers Tested (2)\u003c\/h2\u003e\n            \u003cspan class=\"main-dropdown-icon\"\u003e▼\u003c\/span\u003e\n        \u003c\/label\u003e\n        \u003cdiv class=\"main-section-content\"\u003e\n            \u003cdiv class=\"main-section-inner\"\u003e\n\n                \u003c!-- Cellular Energy (2) --\u003e\n                \u003cinput type=\"checkbox\" id=\"meditest-cat-cellularenergy-nad\"\u003e\n                \u003cdiv class=\"category-section\"\u003e\n                    \u003clabel for=\"meditest-cat-cellularenergy-nad\" class=\"category-header\"\u003e\n                        \u003cspan class=\"category-title\"\u003eCellular Energy \u0026amp; Longevity (2)\u003c\/span\u003e\n                        \u003cspan class=\"category-dropdown-icon\"\u003e▼\u003c\/span\u003e\n                    \u003c\/label\u003e\n                    \u003cdiv class=\"category-content\"\u003e\n                        \u003cdiv class=\"category-biomarkers\"\u003e\n                            \n                            \u003cinput type=\"checkbox\" id=\"meditest-bio-nadplus-nad\"\u003e\n                            \u003cdiv class=\"biomarker-item\"\u003e\n                                \u003clabel for=\"meditest-bio-nadplus-nad\" class=\"biomarker-header\"\u003e\n                                    \u003cspan class=\"biomarker-name\"\u003eNAD+ (Oxidised Form)\u003c\/span\u003e\n                                    \u003cspan class=\"dropdown-icon\"\u003e▼\u003c\/span\u003e\n                                \u003c\/label\u003e\n                                \u003cdiv class=\"biomarker-content\"\u003e\n                                    \u003cp\u003eNAD+ is the active, oxidised form of nicotinamide adenine dinucleotide. It serves as an electron acceptor in metabolic reactions, driving cellular energy production in the mitochondria. NAD+ is also a substrate for sirtuins (SIRT1–7) and poly-ADP-ribose polymerases (PARPs), which regulate DNA repair, inflammation, and cellular stress responses.\u003c\/p\u003e\n                                    \u003cp\u003eHigher NAD+ levels are associated with improved metabolic function and cellular resilience. As we age, NAD+ levels decline naturally — by age 50, levels may be half what they were at age 20. This decline is linked to reduced energy, slower recovery, impaired DNA repair, and accelerated ageing processes.\u003c\/p\u003e\n                                    \u003cp\u003eLow NAD+ levels may suggest suboptimal cellular energy production, increased oxidative stress, or the natural decline associated with ageing. Many individuals with low levels choose to increase NAD+ precursor supplementation (NMN, NR) or explore other interventions such as caloric restriction, exercise, or NAD+ IV therapy. Tracking your NAD+ allows you to validate your supplementation strategy and optimise your longevity protocol.\u003c\/p\u003e\n                                \u003c\/div\u003e\n                            \u003c\/div\u003e\n\n                            \u003cinput type=\"checkbox\" id=\"meditest-bio-nadh-nad\"\u003e\n                            \u003cdiv class=\"biomarker-item\"\u003e\n                                \u003clabel for=\"meditest-bio-nadh-nad\" class=\"biomarker-header\"\u003e\n                                    \u003cspan class=\"biomarker-name\"\u003eNADH (Reduced Form)\u003c\/span\u003e\n                                    \u003cspan class=\"dropdown-icon\"\u003e▼\u003c\/span\u003e\n                                \u003c\/label\u003e\n                                \u003cdiv class=\"biomarker-content\"\u003e\n                                    \u003cp\u003eNADH is the reduced form of NAD+, created when NAD+ accepts electrons during glycolysis and the citric acid cycle. NADH carries these electrons to the mitochondrial electron transport chain, where they are used to produce ATP — your cells' primary energy currency.\u003c\/p\u003e\n                                    \u003cp\u003eThe ratio of NAD+ to NADH reflects your cellular redox state and metabolic efficiency. A healthy ratio indicates efficient cellular metabolism. A low ratio (relatively more NADH) may suggest metabolic inefficiency, while an unusually high ratio could indicate oxidative stress.\u003c\/p\u003e\n                                    \u003cp\u003eYour results should be interpreted alongside other health markers and discussed with a healthcare professional if you have concerns. For those tracking the efficacy of longevity interventions, consider retesting every 3–6 months to monitor changes over time.\u003c\/p\u003e\n                                \u003c\/div\u003e\n                            \u003c\/div\u003e\n\n                        \u003c\/div\u003e\n                    \u003c\/div\u003e\n                \u003c\/div\u003e\n\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- Section 7: Medical Disclaimer --\u003e\n    \u003cdiv class=\"disclaimer-section\"\u003e\n        \u003ch3\u003eMedical Disclaimer\u003c\/h3\u003e\n        \u003cp\u003eThis test is intended for informational and wellness screening purposes only. It does not diagnose, treat, or prevent any disease. NAD+ and NADH levels are biomarkers of cellular metabolism and should be interpreted as part of a comprehensive health assessment.\u003c\/p\u003e\n        \u003cp\u003eIf your results fall outside expected ranges, or if you have any concerns about your health, please consult a qualified healthcare professional. Do not modify any prescribed medications or treatments based solely on these findings.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n\u003c\/div\u003e","brand":"Medi Test Direct","offers":[{"title":"Default Title","offer_id":61399144399178,"sku":null,"price":198.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0944\/5926\/5354\/files\/nad_plus_blood_test_home_box.png?v=1774125166","url":"https:\/\/meditestdirect.co.uk\/products\/nad-blood-test","provider":"Medi Test Direct","version":"1.0","type":"link"}