Some tiredness makes sense.
A late night. A brutal week. A hard workout. Too much to do and not enough time to recover.
But when low energy starts to feel like your default setting, it’s natural to wonder whether your body is missing something.
And sometimes, it might be.
Certain vitamins and minerals play a genuine role in the way your body produces and uses energy - and several can help reduce tiredness and fatigue.
The trick is knowing which ones matter, what they actually do, and when a supplement is useful versus when it’s simply masking a bigger issue.
So if you’re constantly reaching for another coffee by mid-afternoon, here are the nutrients worth knowing about.
The quick answer: which vitamins help with tiredness?
If you're looking for nutrients linked with everyday energy, start here:
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Vitamin B6
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Vitamin B12
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Folate
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Magnesium
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Iron
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Niacin
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Riboflavin
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Pantothenic acid
These nutrients all play a role in normal energy metabolism, red blood cell formation or the reduction of tiredness and fatigue.
That doesn’t mean taking more and more of them will suddenly turn you into a morning person.
But if your diet is falling short, the right nutritional support can make a meaningful difference to how well your body performs its normal energy-producing processes.
Why do women feel tired so often?
There’s rarely one simple answer.
Modern life is already good at draining energy.
Long workdays. Poor sleep. Training. Stress. Commuting. Family. Screens. Skipping meals. Running on caffeine.
And for women, there are a few extra variables in the mix.
Periods can affect iron levels.
Hormonal shifts can influence sleep and energy.
Busy lifestyles can make eating well consistently harder than it sounds.
And sometimes, tiredness has nothing to do with nutrition at all.
So before you decide you need another supplement, it helps to think about the obvious basics first:
Are you sleeping enough?
Are you eating enough?
Are you recovering from your workouts?
Are you living on coffee until lunchtime?
Have you been unusually tired for weeks?
Nutrition matters.
But it works best when it’s supporting a solid foundation rather than trying to rescue a routine that’s running on empty.
1. Vitamin B6: everyday energy support
Vitamin B6 deserves more attention than it gets.
It helps your body release energy from food and helps reduce tiredness and fatigue.
That makes it especially useful in an everyday wellness formula designed for women who want to feel more supported through busy days - without simply adding another caffeine hit.
Vitamin B6 also supports normal psychological function and plays a role in the regulation of hormonal activity.
You’ll find it naturally in foods such as:
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chicken
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fish
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bananas
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chickpeas
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potatoes
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fortified cereals
It’s one of those nutrients that quietly does a lot of work in the background.
And that’s exactly why we included it in RHYTHM.
2. Magnesium: more useful than the hype suggests
Magnesium has become one of the biggest ingredients in wellness.
Sleep powders. Stress supplements. Women's formulas. Recovery products.
It’s everywhere.
But behind all the marketing, magnesium genuinely does play some important roles.
It helps reduce tiredness and fatigue while supporting:
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normal energy metabolism
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normal psychological function
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normal nervous-system function
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normal muscle function
In other words, it’s involved in several of the systems you rely on when life feels busy, training is demanding and energy is stretched.
Magnesium isn’t a stimulant.
You won’t drink it and feel an instant rush like caffeine.
That’s not the point.
It’s nutritional support for the processes your body is already carrying out every day.
And for a daily women’s wellness formula, that makes it a very natural fit.
Why magnesium and B vitamins sit at the heart of RHYTHM
When we designed RHYTHM, we didn’t want another product that promised a dramatic burst of artificial energy.
We wanted something that made sense as part of a normal daily routine.
That’s why RHYTHM combines magnesium and B vitamins to support everyday energy and help reduce tiredness and fatigue.
And rather than stopping there, we brought them together with:
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3g creatine monohydrate
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2g myo-inositol
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L-theanine
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vitamin D3
All in one Mixed Berry daily drink.
No complicated supplement stack.
No cupboard full of half-used tubs.
Just one scoop designed around the needs of busy women.
3. Vitamin B12: one of the big ones for low energy
If you’ve ever searched for vitamins for tiredness, you’ve probably come across B12.
And with good reason.
Vitamin B12 helps your body release energy from food and helps reduce tiredness and fatigue.
It also supports normal red blood cell formation.
When B12 levels are genuinely low, tiredness can be significant - not just “I need a coffee” tired, but the kind that can make everyday life feel harder.
People following vegan diets may need to pay particular attention to B12 because it’s found naturally mainly in animal-derived foods.
But diet isn’t the only factor.
Some people simply don’t absorb B12 well.
So if you’re dealing with persistent or unexplained fatigue, it’s worth finding out what’s actually going on rather than assuming a generic multivitamin will solve it.
4. Iron: especially important for women
Iron deserves a section of its own.
Your body needs iron to make haemoglobin, which helps red blood cells carry oxygen around your body.
When iron levels become too low, tiredness can become very real.
And women who menstruate - particularly those with heavier periods - can be more vulnerable to low iron.
That’s why iron deficiency is one of the things worth considering if you’re:
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constantly exhausted
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feeling weak
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unusually breathless
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looking pale
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experiencing heart palpitations
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or struggling with heavy periods
But iron is one nutrient we wouldn’t recommend taking blindly.
More iron isn’t automatically better, and supplementing when you don’t need it can cause problems.
If you suspect low iron, getting it checked is much smarter than guessing.
RHYTHM doesn’t contain iron for exactly that reason.
We wanted the formula to work as an everyday wellness product - not assume that every woman needs additional iron.
5. Folate: another overlooked energy-support nutrient
Folate, also known as vitamin B9, is another nutrient linked with the reduction of tiredness and fatigue.
It also plays a role in normal blood formation.
You’ll find folate naturally in foods such as:
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leafy green vegetables
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broccoli
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peas
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chickpeas
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asparagus
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Brussels sprouts
Like B12 and iron, low folate can contribute to anaemia and tiredness.
Again, the theme here is simple:
Your body needs the right raw materials to function well.
Supplements aren’t magic.
But nutritional gaps can matter.
6. Vitamin D: supporting more than just one system
Vitamin D tends to get discussed mainly in the context of winter and immunity.
But it earns its place in a good daily wellness routine for several reasons.
Vitamin D supports:
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normal immune function
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normal muscle function
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maintenance of normal bones
For women juggling work, training and everyday life, that broader foundation matters.
RHYTHM contains 25 micrograms of vitamin D3 per serving, so it isn’t simply there as a label filler.
It’s part of the wider formula alongside the nutrients focused more directly on tiredness and energy support.
7. What about creatine for energy?
Creatine is one of the most misunderstood ingredients in women’s wellness.
Most people still associate it with male bodybuilders.
But creatine is involved in the way your body rapidly regenerates ATP - the immediate energy source used during short bursts of high-intensity activity.
That’s why it has such a strong association with training and performance.
It isn’t the same type of “energy” you get from caffeine.
And we wouldn’t tell someone who feels exhausted all day that creatine is going to fix that.
But as part of a broader women’s daily formula, it makes sense.
RHYTHM includes 3g of creatine monohydrate per serving, alongside magnesium, B vitamins, myo-inositol, L-theanine and vitamin D3.
If you want to understand creatine in more detail, read:
→ Creatine for Women: Benefits, Dosage & What You Need to Know
8. What about caffeine?
Caffeine works.
That’s why so many of us love coffee.
It can help you feel more alert, more awake and more switched on.
But there’s a difference between:
feeling temporarily more awake
and
supporting your body’s normal energy processes.
If you’re exhausted because you’re under-slept, under-eating or stressed, another caffeine hit might make you feel better for a few hours.
But it doesn’t remove the reason you were tired in the first place.
And if caffeine starts pushing later into the afternoon and evening, it can begin interfering with sleep- creating exactly the cycle you’re trying to escape.
That’s why RHYTHM isn’t built around a giant stimulant hit.
It’s designed to support your routine, not override it.
Can vitamins actually “give” you energy?
Not in the same way coffee does.
Vitamins and minerals don’t contain calories.
Instead, nutrients such as B vitamins and magnesium help your body use the energy you already get from food.
Think of it this way:
You don’t want your supplement to fake energy.
You want your body to have the nutrients it needs to produce and use energy normally.
That’s a very different idea.
And it’s a much better foundation for a daily wellness routine.
So what is the best supplement for tiredness in women?
There isn’t one universal answer.
Because “tired” can mean very different things.
If you’re low in iron, the answer may be iron.
If you’re deficient in B12, the answer may be B12.
If you’re sleeping four hours a night, the answer definitely isn’t another supplement.
But if you’re looking for everyday nutritional support, it makes sense to look for a formula that brings together nutrients associated with:
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energy metabolism
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reducing tiredness and fatigue
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muscle function
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immune function
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nervous-system support
without forcing you to build your own five-product supplement stack.
That’s the space RHYTHM is designed to sit in.
What should women look for in an energy supplement?
The supplement aisle can make everything sound incredible.
So ignore the hype for a moment.
Here’s what actually matters.
Meaningful amounts
An ingredient being printed on the label doesn’t mean much if there’s barely any of it in the formula.
Always check the amount per serving.
Ingredients that actually make sense together
A good formula should have a reason for each ingredient being there.
Not 27 trendy ingredients added simply to make the label look impressive.
A routine you’ll stick to
The “perfect” supplement isn’t very useful if you forget to take it four days out of seven.
Convenience matters.
Claims that sound believable
Be sceptical when a supplement promises to:
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eliminate fatigue
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fix your hormones
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melt body fat
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stop all stress
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transform your energy overnight
Good products shouldn’t need fantasy claims.
Why RHYTHM takes a different approach
We created RHYTHM because women’s supplements often fall into one of two camps.
Either:
a basic multivitamin with little personality
or
an overloaded formula promising to fix absolutely everything.
We wanted something different.
One daily formula built around a few clear areas:
Hormonal Support
Support your natural rhythm.
Calm Mental Focus
Supports focus & calm.
Energy & Vitality
Helps reduce tiredness & fatigue.
Immune Support
Supports normal immune function.
That’s why RHYTHM combines:
2g Myo-Inositol
3g Creatine Monohydrate
Magnesium
L-Theanine
B Vitamins
Vitamin D3
in one Mixed Berry drink.
No miracle promises.
Just a thoughtfully designed daily formula that makes women’s wellness easier.
Food still matters
No supplement replaces a good diet.
And it shouldn’t try to.
Your everyday energy still depends heavily on the basics:
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eating enough
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getting enough protein
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eating a varied diet
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drinking enough water
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sleeping properly
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moving your body
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recovering properly
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managing stress where you can
Think of supplements as the final layer.
Not the foundation.
Why am I tired even after sleeping?
This is where it’s worth paying attention.
If you’re getting what feels like enough sleep but still waking up exhausted, there may be more going on.
Poor sleep quality can leave you tired even if you’ve technically spent eight hours in bed.
Other possibilities include:
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stress
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nutrient deficiencies
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iron deficiency
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thyroid problems
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sleep apnoea
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some medications
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blood-sugar issues
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other health conditions
So if your energy has noticeably changed and there’s no obvious reason, don’t simply keep adding supplements.
Sometimes the smartest thing you can do is get it checked.
When should you speak to your GP about tiredness?
Feeling tired after a busy week is normal.
Feeling exhausted for weeks without knowing why deserves more attention.
If tiredness is persistent, unusual for you, getting worse or interfering with everyday life, speak to your GP.
That’s particularly important if it comes with other symptoms such as:
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shortness of breath
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unexplained weight change
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very heavy periods
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palpitations
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persistent weakness
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feeling unusually cold
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significant mood changes
A supplement can support nutrition.
It shouldn’t be used to ignore a symptom that needs investigating.
Frequently asked questions
What vitamins are best for tiredness and fatigue?
Several nutrients are particularly relevant, including vitamin B6, vitamin B12, folate, magnesium, iron, niacin and riboflavin. The right choice depends on your diet, lifestyle and whether you’re actually low in a particular nutrient.
What vitamin deficiency can make you tired?
Low levels of iron, B12 or folate can all contribute to significant tiredness. Magnesium deficiency can also cause fatigue and weakness.
Is magnesium good for tiredness?
Yes. Magnesium helps reduce tiredness and fatigue while also supporting normal energy metabolism, muscle function and the nervous system.
Does vitamin B6 help with energy?
Vitamin B6 helps your body release energy from food and helps reduce tiredness and fatigue. It also supports normal psychological function and hormonal activity.
Does vitamin B12 help with tiredness?
Yes. B12 helps reduce tiredness and fatigue and supports normal red blood cell formation. Genuine B12 deficiency can cause marked fatigue and weakness.
Should women take iron for tiredness?
Not automatically. Iron can be very important for women with low iron levels, especially those with heavy periods, but it’s better to confirm whether you actually need it before supplementing.
Does vitamin D help with energy?
Vitamin D plays a different role. It supports normal immune function and muscle function and forms part of a broader daily wellness routine.
What is the best supplement for low energy in women?
There isn’t one best product for everyone. Look for a formula that provides meaningful amounts of nutrients linked with energy metabolism and tiredness, while fitting into a routine you can actually maintain.
Vitamins for tiredness and fatigue: the bottom line
If you’re constantly tired, your first instinct might be to look for something that promises instant energy.
But the best approach is usually much simpler.
Look at the foundations first.
Sleep.
Food.
Recovery.
Stress.
Then make sure your body is getting the nutrients it needs to function properly.
Magnesium and several B vitamins play a genuine role in reducing tiredness and supporting normal energy metabolism.
Iron matters when levels are low.
Vitamin D supports other important areas including immunity and muscle function.
And if your tiredness is persistent or unusual, don’t guess — get it checked.
For everyday nutritional support, though, you don’t necessarily need a shelf full of different products.
RHYTHM brings magnesium, B vitamins, vitamin D3, creatine, myo-inositol and L-theanine together in one daily Mixed Berry drink.
One scoop.
One routine.
Less complication.
References
NHS. Tiredness and fatigue.
NHS. Vitamin B12 or folate deficiency anaemia.
NHS. Vitamins and minerals — Iron.
NHS. Vitamins and minerals — Vitamin D.
Department of Health and Social Care. Great Britain Nutrition and Health Claims Register.
Food Standards Agency. Food supplements guidance.
Regulation (EC) No 432/2012. Authorised health claims for vitamins and minerals.