The five supplements Dr Ash Kapoor recommends
Dr Ash Kapoor spends his working life on formulation science. Here is what survives that scrutiny in his own cupboard, ranked, and why he agreed to review MUTO before a capsule was made.

“We didn’t just look at NAD. We looked at how it’s produced, how it’s protected, and how it gets used.”
That question is the whole reason he joined the advisory board, and it’s the order the list below is ranked in.
Five that earn their place, in order.
MUTO NAD⁺ Cellular Complex
NAD⁺ is what mitochondria use to turn food into energy and what repair enzymes need to work at all. Levels fall steadily with age, so this is the input everything else in the list depends on.
Production, protection and use are handled in one formula rather than left to chance across three.
Vitamin D3
Closer to a hormone than a vitamin, and involved in immune function, mood and bone health. In the UK there is no meaningful sun-derived supply for half the year.
Taken with K2 and with a meal containing fat, otherwise most of it goes unabsorbed.
Probiotic
Absorption is the step most stacks ignore. A supplement is only worth what the gut manages to take up, and gut health is the variable that decides it.
Look for named strains and a CFU count on the label, not a blend description.
Magnesium
A cofactor in hundreds of enzymatic reactions, including the ones that make and spend cellular energy. Training raises the demand for it; most diets don’t meet the baseline.
The form matters more than the milligrams. Glycinate or malate, taken in the evening.
Glutathione
The body’s own antioxidant, used to clear the oxidative damage that hard training and ordinary metabolism generate. Production falls with age alongside NAD⁺.
Liposomal or NAC as a precursor. Plain oral glutathione is largely broken down before it lands.
Most NAD⁺ products answer one question out of three.
Raising NAD⁺ is the easy part. What decides whether it does anything is what happens next: how much of it survives, and whether the cell has what it needs to spend it. A single-ingredient product leaves both of those unanswered.
MUTO is built around those three jobs - produce, protect, put to work. Every dose is at the level used in the research it comes from and printed in full on the label.
The fuel your cells need
Raw material to make NAD⁺, plus the essentials to turn it into energy.
Keeping your NAD⁺ working
The body breaks NAD⁺ down as fast as it makes it. Protecting it matters as much as producing it.
Turning it into energy you feel
The final step: making sure that energy actually gets used.
Blood NAD⁺ against participants’ own baseline after 14 days of nicotinamide riboside supplementation.¹
We’ve run the numbers²
NAD⁺ boost in 2 weeks
51% increase in NAD⁺ in two weeks
Better recovery
94% report better recovery
Improved HRV
89% report improved HRV
Bounce back quicker from strain
93% bounced back quicker from strain
Improved energy
92% reported improved energy
Dr Kapoor is one of six who reviewed the formula.
MUTO was formulated by Dr Richie Barclay and reviewed by a six-person scientific advisory board before a single capsule was made. It’s produced in a UK facility to GMP ISO standard and tested by an independent lab for purity and potency.

Dr Alka Patel

Dr James Morehen

Dr Richard Mackenzie

Dr Maciej Zatonski

Dr Ash Kapoor

Dr Richie Barclay
Feel it before you see it.
Then check it against your data.
What customers notice first, in the weeks before any trend line moves. Open any of them for the mechanism.
The same four weeks, read on your own device. Every claim here is one you can verify yourself. Open any of them for the mechanism.
01
Energy that doesn’t spike
All day, no crash
Energy that doesn’t spike
All day, no crash
There are no stimulants in the formula, so there is nothing to come down from. What people describe is a flatter line rather than a lift - the afternoon dip going first, usually in weeks three to four.
02
Recover between sessions
Hard days cost less
Recover between sessions
Hard days cost less
The day after a hard session is where it shows. Repair is an energy-funded process, and funding it better means arriving at the next session with more of the last one absorbed.
03
Steadier mornings
Less fog on waking
Steadier mornings
Less fog on waking
Waking up is metabolically demanding. Most people notice mornings sharpening before anything appears on a wearable.
04
A calmer baseline
Fewer peaks and troughs
A calmer baseline
Fewer peaks and troughs
Less of the day spent braced. It is a subtle change and it is the one people describe last, usually after a month or more.
01
HRV
A validated recovery marker
HRV
A validated recovery marker
Heart rate variability reflects how much repair work your body managed overnight. Read it as a trend across weeks, never as a single morning’s number.
02
Recovery score
Calculated overnight
Recovery score
Calculated overnight
Whatever your device calls it, it is a composite of HRV, resting heart rate and sleep. The useful signal is the weekly average moving, not one green morning.
03
Resting heart rate
Trend, not a single morning
Resting heart rate
Trend, not a single morning
Slower to move than HRV and harder to fake. A downward drift across a training block is the cleaner read of the two.
04
NAD⁺ levels
The system underneath
NAD⁺ levels
The system underneath
The input the rest of it depends on. Published research found a 51% rise against participants’ own baseline after 14 days of nicotinamide riboside.
Reported timings are typical, not guaranteed. Individual results may vary.
£29 for your first month, then £55
A low-commitment way to try MUTO and see what your own data does. Up to 58% off versus the one-time price, and you can cancel at any point.
90 days, or your money back
Ninety days is long enough for your own numbers to say something, which is why it is the window we stand behind. Log a 30-day HRV and resting heart rate average before your first capsule so the comparison is honest.
If the data hasn’t moved by day 90, tell us and we refund you. No return of the empty pouches, no argument about how you felt.
The questions people ask about the stack.
Do I need all five?
No. The list is ranked for a reason - start at the top and add downward only if there is a gap. Most people are covered by the first two or three, and the B vitamins, zinc, copper and CoQ10 that would otherwise be separate purchases are already inside the MUTO formula.
Why nicotinamide riboside rather than NMN?
NR has the larger body of published human research behind it, which is why it is the base of the formula at 300mg. The more important difference is what sits alongside it: pterostilbene extends how long raised NAD⁺ levels last, and BioPerine® improves absorption. A single-ingredient NAD⁺ product leaves that work undone.
Where does this fit if I already take a stack?
Most of a stack works on inputs the body then has to process. MUTO works a layer beneath that, on the cell’s capacity to use any of it. Doses are printed in full on the label, so overlap is visible rather than guessed at - the usual outcome is that it replaces two or three separate products rather than adding to them.
How soon will I feel something?
There are no stimulants in it, so nothing in the first hour. Most people report the afternoon dip going in weeks three to four, and wearable data typically moves between day 30 and day 60. Read it as a trend across weeks, not a single morning’s reading.
¹ Conze, D., Brenner, C., & Kruger, C. L. (2019). Scientific Reports, 9(1), 9772. Blood NAD⁺ measured against participants’ own baseline over 14 days of nicotinamide riboside supplementation.
² Self-reported survey of 87 men and women taking MUTO, aged 30 to 50, over 12 weeks.
MUTO is a food supplement and is not intended to diagnose, treat, cure or prevent any disease. It is not a substitute for training, sleep or a varied diet. If you are pregnant, breastfeeding or taking prescribed medication, speak to your doctor before use. Views expressed are those of the named advisor. Individual results vary.
NAD⁺ Cellular Complex
60 Capsules, 30 Servings
Two supplements do the work. The rest are nice to have.
MUTO is both of them, in one formula.
Ranked properly, a supplement shelf has a very short top. Two things earn their place on the evidence; everything below is marginal gains at best. MUTO builds both into a single 15-ingredient system, dosed to work together rather than sit in separate bottles competing for the same pathways.
Not a shelf of singles. The two that matter, formulated as one complex.
Everything below the top two is optional. Most stacks are mostly optional.
Researched levels, printed on the label. Nothing hidden behind a blend.
One protocol, once a day. The shortlist, without the shopping.
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90-day money-back guarantee
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Third-party tested
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UK GMP ISO manufacturing
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6-person Scientific Advisory Board
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Independent research with Coventry, Westminster & Newcastle Australia Universities
What your wearable measures - and what it doesn't
What your wearable measures - and what it doesn't
HRV. Recovery. Readiness. Sleep quality. Every one of those scores is your cells doing energy work well or badly, converted into a number. MUTO supports how the billions of cells in your body produce that energy - the input behind the output.
Rigorous testing standards
Rigorous testing standards
Our products are tested by independent third-party laboratories for heavy metals, microbes, and purity. We have ongoing research collaborations with three research institutions.
How it fits your stack - and when it doesn't
How it fits your stack - and when it doesn't
- Most NAD⁺ supplements give you a precursor and stop there. But making NAD⁺ is only the first of three jobs - skip the other two and you're paying to produce NAD⁺ your body loses or never turns into energy you feel.
- Produce - NR gives your cells the building block they turn into NAD⁺. Essential, but on its own it's one third of the job. It's where NMN and NR stop - and where MUTO starts.
- Protect - An enzyme (CD38) breaks NAD⁺ down almost as fast as you make it. Quercetin, Pterostilbene, Grapeseed and Turmeric slow that leak, so the NAD⁺ you produce actually sticks around.
- Put to Work - NAD⁺ in your blood isn't energy yet. CoQ10 and BioPerine® help your cells absorb it and turn it into energy you feel - not just a better number on a lab report.
- Produce without Protect is a leaking tank. Produce without Put to Work is fuel you never burn. NR and NMN do one job. MUTO does all three.
Clinically dosed, bio-available ingredients
Clinically dosed, bio-available ingredients
Nicotinamide Riboside (NAD+ precursor), quercetin, grapeseed and turmeric extracts, pterostilbene and CoQ10 - with a complete B complex including methylated folate and B12, plus D3, K2, zinc, copper and BioPerine® for absorption.
How to take it
How to take it
Take two capsules daily with your first meal. Most report a difference between weeks three and six. A daily system that builds a stronger baseline.
Delivery, subscription and guarantee
Delivery, subscription and guarantee
Free UK next-day delivery. Skip, pause or cancel anytime. 90-day money-back guarantee, click here to learn more.
A tool to support you and help you maintain your commitment.
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What people notice
when the system
starts working.