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Across ten small human trials with 11 comparison arms, the signal emerged in adults whose blood<\/a> pressure was already beginning to rise.<\/p>\n Researchers at Hangzhou Normal University in eastern China (HZNU<\/a>) tied NMN to that measurable change when they compared supplement groups with inactive comparison groups.<\/p>\n The effect held on the lower reading during heart relaxation, but the upper reading during each heartbeat did not fall clearly across the full group.<\/p>\n That narrow split gave NMN a measurable result without yet giving it the weight of a full treatment claim.<\/p>\n Supplement targets cells<\/p>\n Inside cells, nicotinamide mononucleotide \u2013 the compound called NMN \u2013 sits upstream of a molecule cells use every day called NAD+.<\/p>\n That molecule, NAD+, helps cells turn food into usable energy and repair damaged genetic material after daily cellular stress.<\/p>\n Levels often decline with age, so companies sell NMN as a way to refill that cellular supply.<\/p>\n Raising a blood marker, however, does not prove that arteries, hearts, or lives will improve during normal health.<\/p>\n Pressure points matter<\/p>\n Such a small drop can be hard to interpret because ordinary readings often change between measurements.<\/p>\n Worldwide, a 2025 World Health Organization report<\/a> estimated 1.4 billion adults ages 30-79 had high blood pressure, giving small average changes real scale.<\/p>\n For an individual considering a supplement, that small change may not alter a doctor\u2019s plan or lead to medication changes.<\/p>\n That gap between population-level averages and individual outcomes explains why the result calls for careful restraint in real-world decisions.<\/p>\n Older adults stood out<\/p>\n Among adults age 60 and older, the top blood pressure number showed a slightly larger drop in the review.<\/p>\n Aging can stiffen arteries, so any mild vessel relaxation could show more strongly in systolic readings.<\/p>\n Evidence from that older group came from a smaller slice of data, not a large dedicated trial. Without longer testing, the age finding remains a clue rather than a reason to prescribe NMN.<\/p>\n Evidence stays narrow<\/p>\n Trial<\/a> designs kept the answer narrow because most studies lasted only four to 12 weeks.<\/p>\n Short follow-up can catch early pressure changes, but it cannot reveal heart attacks or strokes prevented over time.<\/p>\n Participants mostly had early pressure elevation, and no trial enrolled moderate or severe high blood pressure.<\/p>\n That profile makes the result most relevant to prevention, not advanced disease or urgent treatment.<\/p>\n Lifestyle still leads<\/p>\n Established habits, including Dietary Approaches to Stop Hypertension (DASH<\/a>), still beat NMN by larger margins.<\/p>\n In a major trial, the DASH diet lowered the top blood pressure number by a noticeably larger amount than a typical diet.<\/p>\n Regular aerobic exercise also produced clear reductions in that top number across dozens of clinical trials.<\/p>\n Clinical guidelines<\/a> still place DASH eating, movement, weight management, and lower sodium ahead of supplements for pressure control.<\/p>\n Experts urge restraint<\/p>\n Outside experts treated the finding as useful but not powerful enough to replace proven care from the start.<\/p>\n \u201cNMN supplementation is an intriguing area of research because it targets NAD+ metabolism and cellular aging pathways,\u201d said Lauri Wright, Ph.D., RDN, director of nutrition programs and associate professor at the University of South Florida College of Public Health<\/a>.<\/p>\n Wright said the current evidence points to only small improvements in blood pressure and emphasized the need for further research.<\/p>\n Wright\u2019s caution matches the data because blood pressure was often a side measure, not the main question from the start.<\/p>\n Supplement labels overpromise<\/p>\n Store shelves can turn a small trial signal into a promise the evidence has not earned.<\/p>\n Dietary supplements<\/a> do not get Food and Drug Administration approval for safety or effectiveness before sale, though they are sold to add nutrients or compounds.<\/p>\n Trials tested 250 to 1,500 mg daily, but they did not establish a best dose for years-long use.<\/p>\n Regulatory gaps matter because blood pressure claims can lead people to delay care that already works in time.<\/p>\n Patients need context<\/p>\n People taking pressure medicine need extra caution because even small drops can stack with prescribed drugs.<\/p>\n A clinician can check home readings, medication timing, kidney health, and other reasons pressure<\/a> rises before suggesting changes.<\/p>\n Adults with normal readings have less room to benefit, so the same pill may offer no measurable gain.<\/p>\n Until stronger trials arrive, medical advice should follow risk, age, current readings, and personal health history, not marketing pressure.<\/p>\n Next trials matter<\/p>\n New evidence draws a clear line: NMN may nudge pressure downward, but it has not proved heart protection for now.<\/p>\n Future trials need more people, longer follow-up, and actual heart attack or stroke data before the supplement earns a clinical role.<\/p>\n The study is published in Nutrients<\/a>.<\/p>\n \u2014\u2013<\/p>\n Like what you read?\u00a0Subscribe to our newsletter\u00a0<\/a>for engaging articles, exclusive content, and the latest updates.<\/p>\n Check us out on\u00a0EarthSnap\u00a0<\/a>, a free app brought to you by\u00a0Eric Ralls\u00a0<\/a>and Earth.com.<\/p>\n \u2014\u2013<\/p>\n","protected":false},"excerpt":{"rendered":"A new analysis has found that the anti-aging supplement called nicotinamide mononucleotide (NMN) produced a small drop in…\n","protected":false},"author":2,"featured_media":401613,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36],"tags":[134,111,139,556,69],"class_list":{"0":"post-401612","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-nutrition","8":"tag-health","9":"tag-new-zealand","10":"tag-newzealand","11":"tag-nutrition","12":"tag-nz"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts\/401612","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/comments?post=401612"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts\/401612\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/media\/401613"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/media?parent=401612"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/categories?post=401612"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/tags?post=401612"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}