$60.00
$75.00 save $15.00 -- applied automatically through this link
When you buy through our links, we earn a small commission -- and that is what funds all the free education here. It never costs you more. Products are not intended to diagnose, treat, cure, or prevent any disease.
What it is
Pharmanex's metabolic-support formula, taken with meals. It is built around mulberry leaf extract standardized to 1-deoxynojirimycin (DNJ) -- a natural alpha-glucosidase inhibitor that slows the breakdown of dietary carbohydrates -- plus guar gum, a soluble viscous fiber that slows how quickly glucose is absorbed. Together they blunt the post-meal blood-sugar rise. Blood-sugar handling and gut health are closely linked, which is why it belongs in the gut-and-metabolism cluster.
Why the evidence supports it
The standout here is a real study on the finished product, not just its parts: in a randomized, double-blind, placebo-controlled crossover trial, the formula lowered the post-meal glucose rise by about 38% (the 0-to-120-minute glucose AUC) versus placebo after a test meal, with positive quality-of-life measures on continuous glucose monitoring and no adverse events. The mechanism is clean and well-understood -- the mulberry DNJ blocks alpha-glucosidase so fewer carbohydrates are freed into glucose at once, while guar gum's viscous fiber slows absorption, and both are independently studied for blunting the post-meal glucose spike. That is stronger, product-specific evidence than most metabolic supplements can point to. Kept honest, it supports a healthy blood-sugar response already within a normal range and the cell's Transform function around meals -- metabolic support, not a treatment for any blood-sugar condition.
What it supports
- Supports a healthy blood-sugar response to a meal, already within a normal range
- Supports everyday metabolic balance
- Complements a gut-health and foundation-nutrition routine
- Best used as a targeted add-on once the daily foundation is in place
Which function it supports
Ties to the cell's Transform function -- supporting how the body handles the glucose from a meal and everyday metabolic balance. Because blood-sugar handling and the gut are linked, it also supports the Gut Health picture.
Learn the why behind this pillarHow it relates to your cells and mind
Every product here ties back to a specific job your body does. This one touches the functions below -- follow either link to see the mechanism in full, then dig into the studies.
What it is made of -- and the mechanisms behind it
Each ingredient acts on several of the body's functions. Taken together, this product touches these cell and mind functions -- follow any to see the mechanism in full.
The ingredients
Mechanisms drawn from our ingredient knowledge base (3 profiled ingredients). Structure and function only -- not a treatment claim.
What’s actually in it
Transcribed from the manufacturer’s official Product Information Page, exactly as printed. Ingredient names that link open our research page for that ingredient, with the studies behind it.
| Amount per 1 stick pack | Amount | % DV |
|---|---|---|
| Total Calories | 5 | |
| Total Carbohydrates | 2 g | 1% |
| Dietary Fiber | 2 g | 7% |
| Vitamin Aas 100% Beta Carotene from Blakeslea trispora | 2500 mcg RAE | 278% |
| Sodium | 15 mg | <1% |
| White Mulberry Leaf extractMorus alba | 1250 mg | † |
| Hydrolyzed Guar Gum | 2000 mg | † |
- Servings per container:
- 30
- Other ingredients:
- Sea Salt, Stevia, Natural Flavor, Gum Arabic.
Source: official Product Information Page . Amounts are the manufacturer’s, not ours. Structure and function only -- nothing here is medical advice, and nothing here may be used to diagnose, treat, cure, or prevent any disease.
The science on the ingredients
These studies are research on the ingredients and mechanisms in this product, not on the finished product itself, and they are shown for education. Nothing here is medical advice, and nothing here may be used to diagnose, treat, cure, or prevent any disease. Talk to your own provider about what is right for you.
- Vitamins D, A and E, and Beta-Carotene in Adherent and Non-Adherent Individuals with Phenylketonuria: Cross-Sectional Study, Systematic Review and Meta-Analysis
2025
In a cross-sectional study and meta-analysis of people with phenylketonuria aged 6 to 41, dietary adherence was linked to higher vitamin D, but vitamin E and beta-carotene levels showed no difference by adherence status.
- Role of Beta-Carotene in Lung Cancer Primary Chemoprevention: A Systematic Review with Meta-Analysis and Meta-Regression
Nutrients · 2022
Pooling eight randomized trials in 167,141 participants, beta carotene supplementation was associated with increased lung cancer risk overall and more strongly among smokers and asbestos workers, with no relationship to dose.
- Beta-carotene in multivitamins and the possible risk of lung cancer among smokers versus former smokers: a meta-analysis and evaluation of national brands
Cancer · 2008
Pooled meta-analysis of about 109,000 subjects found high-dose beta-carotene supplementation was associated with a 24% increased lung cancer risk among smokers.
- Beta-carotene in multivitamins and the possible risk of lung cancer among smokers versus former smokers
Cancer · 2008
A review of trial data found the lung cancer risk signal from beta-carotene supplementation was specific to current smokers, underscoring that the harm is population- and dose-dependent, not a universal carotenoid risk.
- Effects of oral vitamin E and beta-carotene supplementation on ultraviolet radiation-induced oxidative stress in human skin
Skin Pharmacology and Physiology · 2005
A human study found that combined oral vitamin E and beta-carotene supplementation was associated with reduced UV-radiation-induced oxidative stress markers in skin.
- Supplementation with beta-carotene or a similar amount of mixed carotenoids protects humans from UV-induced erythema
Journal of Nutrition · 2003
Both beta-carotene alone and a mixed-carotenoid supplement reduced UV-induced skin reddening in this human trial, suggesting a class antioxidant effect rather than one unique to a single carotenoid.
Bioequivalence of mulberry fruit extract and 1-deoxynojirimycin for post-prandial blood glucose lowering: A randomized trial in humansEstablishedRandomized controlled trial2025
A randomized bioequivalence trial found the postprandial glucose-lowering effect of mulberry extract is largely attributable to its 1-deoxynojirimycin content, with other extract components contributing modestly. This is the key citation for why standardizing to DNJ is the meaningful specification.
Hoogenraad AR et al. -- The Journal of Nutrition
Investigating the effects of mycoprotein and guar gum on postprandial glucose in type 2 diabetes: a double-blind randomised controlled trialEmergingRandomized controlled trial2025
A double-blind randomized trial testing guar gum added to a meal reported the postprandial glucose response against control. Recent, well-controlled, and one of the few modern guar postprandial trials; guar is tested alongside mycoprotein so the arms should be read carefully.
Cherta-Murillo A et al. -- Nutrition & Diabetes
Effects of Mulberry Leaf and Corn Silk Extracts Against Alpha-Amylase and Alpha-Glucosidase In Vitro and on Postprandial Glucose in Prediabetic Individuals: A Randomized Crossover TrialEstablishedRandomized controlled trial2025
Mulberry leaf and corn silk extracts inhibited digestive enzymes in vitro, but in a small crossover trial of prediabetic adults the glucose-lowering effect appeared only in an overweight subgroup, not across all participants.
Sun Y et al. -- Nutrients
Circulating Lycopene and β-Carotene Levels Are Inversely Associated with Carotid Intima-Media Thickness: A Systematic Review and Meta-AnalysisEmergingSystematic review2026
Across eight observational studies, higher circulating lycopene was associated with lower carotid artery wall thickness, a marker of subclinical atherosclerosis; beta-carotene showed only a marginal association and the link was stronger in men.
Cavero-Redondo I, Saz-Lara A, Saz-Lara AD, Martínez-Cifuentes Ó, Otero-Luis I, González-Collado A, Rey-López JP. -- Nutrients
Vitamins and Cancer Risk: A Comprehensive Review of Epidemiologic and Clinical EvidenceEmergingSystematic review2026
In a scoping review that mapped evidence without pooling it, routine vitamin supplementation was judged unsupported in cancer care; beta carotene was linked to higher lung cancer risk in smokers and vitamin E to higher prostate cancer risk.
El Halabi L; AlBayeh A; Khoury A; Katrib M; Nasr J; Al-Obaidi A -- Kansas journal of medicine
Hydrogen-Rich Water Decreases Muscle Damage and Improves Power Endurance in Elite Athletes: A Randomized, Double-Blinded, Placebo-Controlled TrialEmergingRandomized controlled trial2025
In 22 female elite handball and skeleton athletes, hydrogen-rich water tablets raised muscle mass and torque and lowered creatine kinase, but blood vitamin C and beta-carotene also fell; questionnaire stress and recovery scores were unchanged.
Ogannisyan M; Slivin A; LeBaron TW; Tarnava A; Karmazin V; Bazanovich S; Dolgachev V; Vychik A; Strizhkov A; Parastaev S -- Journal of lifestyle medicine
Decoding Hypercarotenemia: Integrating Pathophysiology, Clinical Recognition, and Precision ManagementEmergingExpert review2025
This review explains hypercarotenemia -- harmlessly elevated blood carotenoids causing yellow-orange skin with clear whites of the eyes -- distinguishing it from jaundice and framing it as a benign biomarker of carotenoid intake and beta-carotene-conversion genetics.
Wang Z, Xu J, Xu G, Sha Y, Wang K, Chen G. -- Cureus
Development of probiotic fermented beverage from gac fruit (Momordica cochinchinensis) and its functional properties on gut healthEmerging2026
Fermenting gac juice with Lactobacillus paracasei raised probiotic viability to 10 to the 8 CFU per millilitre and beta-carotene, and in colonic fermentation increased short-chain fatty acids and Akkermansia while inhibiting Escherichia coli.
Marisa Marnpae
Exploring the Epigenetic and Metabolic Pathways for Antioxidant and Anti-Inflammatory Potentials of Tart Cherry Juice Concentrate.2025
Tart cherry's mix of anthocyanins, polyphenols, and beta-carotene appears to reduce oxidative stress and inflammation through epigenetic and metabolic pathway changes, per a review of its bioactive components.
Xu J; Pan Y; Peter RM; Chou PJ; Dave PD; Shanner A; Sarwar MS; Brunetti L; Simon JE; Kong AT -- Current pharmacology reports
Genetically Raised Circulating Levels of Dietary Antioxidants and the Association With Respiratory Health in High-Risk PopulationsEmergingCross-sectional survey2026
Using genetic (Mendelian randomization) methods, this study found no consistent causal link between higher circulating dietary antioxidants, including beta-carotene, and better lung function, even in people exposed to smoke or air pollution.
Saied A, Horsfall LJ. -- Canadian respiratory journal
Unveiling the Role of Sweet Potato Root in Skin Health: A New Approach to Collagen Synthesis and Rejuvenation.2025
Review proposes that bioactive compounds in sweet potato root, including beta-carotene and resveratrol, may support collagen synthesis and counter age-related wrinkles and loss of skin firmness when used orally or topically.
Bibi A; Maqsood S; Arshad MT; Ikram A; Gnedeka KT -- Food science & nutrition
Third Generation Genome Sequencing of the Endobacterium Corynebacterium kroppenstedtii subsp. demodicis Reveals Details of Its Microbe-Host-Interaction With the Most Complex Human Commensal, Demodex folliculorumEmerging2026
Sequencing the 2,456,075 bp genome of the Demodex mite endobacterium revealed 2,034 coding sequences, an incomplete carbohydrate metabolism, and beta-carotene plus stress proteins supporting ultraviolet and oxidative tolerance.
T Steegmüller; S Walch; S Gschwendtner; A Klingl; L E French; M Flaig; B M Clanner-Engelshofen
Optimization of Provitamin A Maize and Iron-Rich Bean-Based Composite Flour for Improved Child NutritionEmerging2026
Response surface optimisation of a composite flour with 57.89% provitamin A maize and 17.11% iron-rich beans gave 1.58 ug/g RAE beta-carotene, 6.0 mg/100 g iron and an overall acceptability score of 7.10.
Amos Asiimwe; Juliana Nambwayo; Boniface Brian Odong; Ivan Muzira Mukisa; Robert Fungo
U-Shaped Association Between β-Carotene Intake and Suicidal Ideation in Cancer Survivors: Evidence from a Nationally Representative SampleEmerging2026
Among 698 Korean cancer survivors, higher dietary beta-carotene intake was associated with lower odds of suicidal ideation (odds ratio 0.68 per 1000 ug), following a U-shaped curve lowest near 6000 ug/day.
Hyejin Tae; Tae-Suk Kim
Causal genes for osteoporosis: Mendelian randomization analysis with multilayer xQTL dataEmergingObservational study2026
Integrating multiple layers of molecular data, a Mendelian randomization study identified 15 high-confidence causal genes for osteoporosis tied to Wnt and bone signaling pathways, and flagged several existing compounds, including beta-carotene, as candidate drug targets.
Fei Yu; Xiwen Wan; Jiaxuan Qiu
Sideroxylon Obtusifolium (Roem. & Schult.) TD Penn: Knowledge and PotentialitiesEmerging2026
A fifteen-year review of quixabeira reports leaf extracts with antioxidant, anti-inflammatory and antibacterial activity in vitro, and fruits containing 47.21 micrograms per gram beta-carotene and 58.68 milligrams per 100 grams anthocyanins.
Luísa Dos Santos Conceição; Sanket Prakash Vanare; Ronald Bruce Pegg; Deborah Murowaniecki Otero
Synergistic Effects of Light and Salinity on Carotenoid and Biomass Composition of <i>Synechocystis</i> PCC6803 CulturesEmerging2026
In Synechocystis PCC6803 grown with 20 or 40 grams per litre marine salt, echinenone rose up to 3.75-fold and beta-carotene tripled under low and medium light, with smaller carotenoid gains at high light.
Cecilia Faraloni; Gergely Erno Lakatos; Francesco Balestra; Anna Pugliese; Graziella Chini Zittelli; Bernardo Cicchi; Eleftherios Touloupakis; Giuseppe Torzillo
Associations Between Carotenoid Status, Visual Outcomes and Cognitive Metrics in Children: A Scoping ReviewEmerging2026
A scoping review of 40 studies reports lutein, zeaxanthin and beta-carotene associated with visual and cognitive function in infants and children, but found few intervention trials to confirm a direct effect.
Sangani P; Davey PG -- Nutrients
The Role of Chemopreventive Agents in the Management of Oral Potentially Malignant Disorders and Oral Cancer: A Narrative ReviewEmerging2026
A narrative review of chemoprevention in oral potentially malignant disorders finds inconsistent but promising results for retinoids, beta-carotene, lycopene, curcumin and COX-2 inhibitors, with dose, toxicity and adherence still unresolved.
Lana Sayal; Omar Hamadah; Eyad Chatty; Anas Abdo; Sana Aghbari; Ali Munasser; Amirah Alnour
Disruption of carotenoid metabolism in cavefish via loss of beta-carotene oxygenase 2aEmerging2026
Cave-adapted Mexican tetra populations carry loss-of-function mutations in bco2a that inactivate the enzyme and are associated with marked carotenoid and vitamin A accumulation, with the locus showing signatures of selection.
David Peréz Guerra; Sepalika Bandara; Francisca Leal; Hans Vasquez-Gross; Juli Petereit; Johannes von Lintig; Misty R Riddle
Retinoic acid production via the ray-finned fish gene bco1l is essential for juvenile developmentEmerging2026
CRISPR knockout of bco1l in Siamese fighting fish lowered vitamin A and raised beta-carotene in larvae, causing stunted growth and death that exogenous retinoic acid largely rescued, with bco1l 7 times more abundant than bco1 in intestine.
Lochlan Sife Krupa; Paula R Villamayor; Sepalika Bandara; Yanqi Zhang; Alec Palmiotti; Johannes von Lintig; Andres Bendesky
Dietary oxidative balance and renal impairment in diabetes identified by machine learning and functional analysisEmerging2026
In 9,764 U.S. adults with diabetes from NHANES, higher dietary vitamin E, beta-carotene and magnesium intake was linked to less kidney impairment, and in cultured human kidney cells these nutrients partly restored a cell-signaling protein that high glucose had suppressed.
Renjie Wang; Xincan Chen; Luheng Shen; Lei Wu; Zicheng Zhu; Zhihong Liu; Zhiwen Xie; Juntao Jiang
In Silico and In-vitro assessment of β carotene extracted from Westella botryoides for fighting multidrug resistant bacterial strainsEmerging2026
Beta-carotene extracted from the green alga Westella botryoides at 132 mg per dry weight killed up to 28% of tested bacterial cells at 500 ug/mL and docked favourably with Staphylococcus aureus receptors.
Haider Ammar Alubaidy; Ali Hamid Al-Bdeery; Zena Abd-Alkhadim Owda; Haider A Alghanmi; Suresh Ghotekar; Majid S Jabir
Multi-factor effects of culture conditions on lutein and β-carotene production in Iranian Dunaliella sp. isolatesEmerging2026
Among three Iranian Dunaliella isolates, strain B8 reached 11.5 milligrams per gram dry weight lutein and 63.5 milligrams per gram beta-carotene under high light, 1 molar sodium chloride and copper supplementation.
Monireh Mones Sardrodi; Ali Bandehagh; Mohammad Amin Hejazi; Bahman Panahi
Balanced by design -- we show supporting and contradicting findings. Search all studies
If you have had labs done
These are lab markers where this product's ingredients have measured evidence in our citation library. This is not a claim that the product will change your results -- the research attaches to the ingredient, and what a marker means depends on the whole picture. Each one links to its full entry, including what typically moves it and how to read it.
- Retinol (Vitamin A)solid evidence
via Beta-carotene · 194 studies, 45 in people
A precursor the body converts at a variable and SELF-LIMITING rate -- which is precisely why it does not carry retinol's toxicity risk.
What people often notice when this marker sits outside the usual range
Higher: Headache, bone and joint pain, dry cracked lips, hair loss, liver enzyme elevation.
Lower: Night vision that is worse than it was -- the earliest and most specific sign.
- Zincsolid evidence
via Vitamin A · 110 studies, 45 in people
What people often notice when this marker sits outside the usual range
Higher: Nausea and metallic taste at high oral doses.
Lower: Frequent colds that last longer than everyone else's.
- Hemoglobin, Hematocrit, RBC Count, MCV & RDWsolid evidence
via Vitamin A · 20 studies, 16 in people
What people often notice when this marker sits outside the usual range
Higher: Commonest causes are dehydration (a false rise), smoking, sleep apnoea, altitude and testosterone therapy -- all worth asking about before anything rarer.
Lower: LOW MCV (small cells) points at iron deficiency, or at thalassaemia trait if iron studies are normal.
- Ferritin, Iron, Iron Saturation & TIBCemerging evidence
via Vitamin A · 48 studies, 18 in people
Mobilise iron from stores and improve absorption -- which is why iron deficiency that resists iron sometimes turns out to be a vitamin A problem.
What people often notice when this marker sits outside the usual range
Higher: Often SILENT for years, which is what makes iron overload dangerous.
Lower: Fatigue that rest does not fix -- and it appears at LOW FERRITIN, long before haemoglobin falls or anaemia exists.
- White Blood Cell Count & Differentialemerging evidence
via Beta-carotene · 7 studies, 4 in people
What people often notice when this marker sits outside the usual range
Higher: Usually an active infection -- fever, feeling unwell, a specific site that hurts.
Lower: Frequent or lingering infections; mouth ulcers; slow recovery.
- Vitamin Amixed evidence
via Beta-carotene · 194 studies, 45 in people
The safer route for adequacy.
What people often notice when this marker sits outside the usual range
Lower: For the full symptom picture in both directions, read the main vitamin A entry -- it is the same measurement, and repeating it here would only risk the two drifting apart.
Lab results are interpreted by a qualified clinician who knows your history. Nothing here diagnoses anything or replaces that conversation.
No product works in isolation
Every cell function above -- Sense, Exchange, Transform, Build, Maintain, Adapt -- needs the same broad base of optimal micronutrient levels running underneath it, all the time. M-Smart is not a stand-alone fix; it is one piece that plugs into that larger system. The foundation comes first, and this supports it.
Stacks well with
Pick your goal -- here is what M-Smart pairs with for each. Nothing works in isolation; these share the same systems.
For Epigenetics
For Gut Health
Foundational, or targeted?
Not everything in the shop is meant to be taken forever. Some products here are foundational -- a daily nutrient base built for long-term, ongoing use. Others are targeted -- shorter-term support for a specific season, not a lifelong habit. If you are not sure which one this is, that is a fair question to ask us before you buy.
Learn more, on your terms
Do not take our word for it -- go read. Each topic below opens a pre-loaded search so you can explore the nutrient, the mechanism, or the device for yourself.
Search the full studies libraryHow to use it
Take with carbohydrate-containing meals, per the label -- most useful around your larger meals of the day.
Where to get it
Ready when you are. This link takes you to the official, verified source for this product.
Get M-SmartThe studies
See the research behind the science we point to.
Explore studiesThe blog
Plain-language reads on how it all fits together.
Read the blogOptimal nutrients are the definition of longevity
Long-term cell function depends on having what it needs, at the level it needs it, for as long as it needs it. That is the whole thesis behind everything we point you to here.
When you buy through our links, we earn a small commission -- and that is what funds all the free education here. It never costs you more. Products are not intended to diagnose, treat, cure, or prevent any disease.
M-Smart is a metabolic-support formula taken with meals, built around mulberry leaf extract standardised to DNJ, a natural alpha-glucosidase inhibitor that slows the breakdown of starch into sugar. It is aimed at the post-meal rise rather than at fasting numbers.
FAQ
What does M-Smart support?
It supports normal blood sugar metabolism already within a healthy range and helps blunt the post-meal glucose rise, supporting everyday metabolic balance.
How do I take it?
Take it with meals, per the label -- timing matters more here than with most supplements, because it acts on carbohydrate as it is being digested.
What makes it different?
It acts in the gut on starch digestion rather than on the pancreas, which is an unusual mechanism among everyday metabolic supplements.