Stress has become an almost unavoidable part of modern life.
Work pressure.
Money worries.
Family responsibilities.
Poor sleep.
Constant notifications.
Social media.
And the feeling that you’re supposed to be available to everyone, all the time.
It’s hardly surprising that searches for natural supplements for anxiety and stress have exploded.
Ashwagandha.
Magnesium.
L-theanine.
Omega-3.
Rhodiola.
Melatonin.
Scroll through TikTok or Instagram for ten minutes and you’ll probably see someone claiming that one of them transformed their nervous system, “lowered their cortisol” or finally made them feel calm.
But which supplements for stress and anxiety are actually supported by research?
And just as importantly:
Which claims are mostly wellness hype?
The answer isn’t as simple as social media makes it sound.
Some supplements have promising evidence for particular uses, while others have limited or inconsistent research. Supplements can also cause side effects and interact with medicines.
So instead of another list promising miracle results, here’s a more realistic look at 7 popular supplements for anxiety, stress and sleep in 2026 — and what the evidence actually tells us.
Important: Supplements aren’t a replacement for appropriate medical or psychological treatment for an anxiety disorder. If anxiety is persistent, severe or interfering with everyday life, speak with a healthcare professional.
1. Ashwagandha
Best known for: stress and sleep
Evidence: promising for stress, less clear for anxiety
Ashwagandha (Withania somnifera) has become one of the most popular natural supplements for stress.
It’s often described as an adaptogen — a term commonly used for plants promoted as helping the body respond to stress.
Ashwagandha has been studied for stress, sleep and anxiety, but there’s an important distinction between these claims.
Some research suggests certain ashwagandha preparations may help with stress and insomnia.
The evidence that it actually treats anxiety, however, is less certain.
That matters because feeling stressed occasionally isn’t the same thing as having an anxiety disorder.
Why do people take ashwagandha?
People commonly use it hoping to support:
- Stress management
- Relaxation
- Sleep
- General wellbeing
You’ll also frequently see claims that ashwagandha “lowers cortisol.”
Some studies have measured changes in cortisol, but that doesn’t mean everybody experiencing stress needs to lower their cortisol or that cortisol itself should become the target of self-treatment.
If cortisol content keeps appearing on your social feeds, read our guide to cortisolmaxxing and what the trend gets right and wrong.
Is ashwagandha safe?
Natural doesn’t automatically mean harmless.
Ashwagandha can cause side effects including stomach upset and drowsiness, and rare cases of liver injury have been reported.
It can also interact with certain medicines and may not be appropriate for people with some thyroid or autoimmune conditions.
Ashwagandha should be avoided during pregnancy, and current NCCIH guidance also advises against using it while breastfeeding.
So this isn’t a supplement to start simply because someone on TikTok says it “balances your hormones.”
2. Magnesium
Best known for: supporting normal body functions; commonly marketed for relaxation and sleep
Evidence for anxiety: limited/mixed
Few supplements have become as closely associated with bedtime routines as magnesium glycinate.
Open almost any wellness feed and you’ll find someone describing magnesium as the missing ingredient for:
Better sleep.
Less anxiety.
Relaxed muscles.
A calmer nervous system.
But the evidence requires more nuance.
Magnesium is an essential mineral involved in many processes throughout the body.
That’s established.
What isn’t established is that taking magnesium supplements will automatically reduce anxiety in someone who already gets enough magnesium.
What about magnesium glycinate for anxiety?
Magnesium glycinate is popular partly because it is marketed as a well-tolerated form of magnesium.
But don’t confuse popularity with proof.
Research into magnesium supplementation for anxiety and stress has produced some encouraging findings, particularly in certain populations, but the overall evidence isn’t strong enough to describe magnesium as a proven anxiety treatment.
Food sources of magnesium
You can also obtain magnesium naturally from foods such as:
- Nuts
- Seeds
- Whole grains
- Beans and pulses
- Leafy green vegetables
For many people, looking at overall nutrition makes more sense than assuming they need another supplement.
3. L-Theanine
Best known for: relaxation without heavy sedation
Evidence: interesting but still limited
L-theanine is an amino acid naturally found in tea, particularly green tea.
It’s become popular among people looking for what might be described as “calm focus.”
Unlike products primarily marketed for sleep, L-theanine is often used during the day.
People take it hoping to feel:
Calmer.
More focused.
Less mentally tense.
Without feeling sleepy.
Does L-theanine work for anxiety?
Small studies have explored L-theanine’s effects on stress, relaxation, cognition and sleep.
Some results are promising.
But the evidence base isn’t strong enough to treat L-theanine as an established treatment for an anxiety disorder.
That’s an important distinction.
Something can be interesting enough to study without being proven enough to recommend as a treatment.
4. Omega-3 Fatty Acids
Best known for: nutritional and cardiovascular roles
Evidence for anxiety: possible benefit, but uncertainty remains
Omega-3 fatty acids are probably best associated with oily fish and heart health.
But researchers have also investigated whether omega-3 supplements may influence anxiety symptoms and mental health.
A 2024 systematic review and dose-response meta-analysis looked at 23 randomised trials involving more than 2,000 participants.
The analysis suggested omega-3 supplementation might improve anxiety symptoms.
Sounds convincing?
There’s an important detail.
The researchers rated the certainty of some of that evidence as low or very low.
In other words:
Promising doesn’t mean proven.
More high-quality research is needed before omega-3 can reasonably be described as a reliable treatment for anxiety.
Natural sources of omega-3
Food sources include oily fish such as:
- Salmon
- Sardines
- Mackerel
- Herring
Plant foods such as walnuts, chia seeds and flaxseed also contain omega-3 fatty acids, although they provide a different form.
5. Rhodiola Rosea
Best known for: fatigue and stress
Evidence: limited
Rhodiola rosea is another plant commonly described as an adaptogen.
Unlike supplements marketed mainly for relaxation, rhodiola is often promoted towards people experiencing:
Stress-related fatigue.
Mental exhaustion.
Burnout.
Low energy.
Difficulty concentrating.
This makes it particularly attractive to people who feel simultaneously stressed and exhausted.
But again, marketing has moved considerably faster than the evidence.
Studies have explored rhodiola for stress, fatigue and mood, but the available research isn’t strong enough to confidently describe it as an effective treatment for anxiety.
If tiredness is your biggest problem, don’t immediately assume you need an adaptogen.
Read our guide to how to get more energy naturally first.
Persistent fatigue can have many causes and sometimes deserves medical investigation rather than another supplement.
6. Melatonin
Best known for: sleep and circadian rhythm
Not primarily: an everyday anxiety supplement
Melatonin deserves clarification because it’s frequently included in lists of supplements for anxiety.
Melatonin is a hormone naturally produced by your body that helps regulate the sleep-wake cycle.
Synthetic melatonin can be useful in certain sleep-related situations.
But it shouldn’t simply be presented as a general supplement for anxiety.
Research has found evidence for reducing anxiety before some medical procedures, but that is very different from proving that melatonin treats everyday anxiety or an anxiety disorder.
Important for UK readers
There’s another major point many supplement articles miss:
Melatonin is prescription-only in the UK.
It isn’t an ordinary supplement you should simply buy from a UK health-food shop.
The NHS specifically advises against ordering unauthorised melatonin products online.
If sleep is the real reason you’re considering melatonin, start with our sleepmaxxing guide or Why Do I Keep Waking Up at 3AM?.
And if sleep problems persist, speak with a healthcare professional.
7. Chamomile
Best known for: relaxation and bedtime routines
Evidence for anxiety: preliminary
Sometimes the simplest option is the one that’s been sitting in the kitchen cupboard all along.
Chamomile has a long history of traditional use and is commonly consumed as tea.
Researchers have also studied chamomile supplements for anxiety.
Some small studies have produced encouraging findings, including research involving generalised anxiety disorder.
But the evidence remains preliminary.
So chamomile belongs in the category of:
Interesting and potentially helpful for some people — but not established as a replacement for proven anxiety treatment.
A cup of chamomile tea can still be a pleasant part of a relaxing evening routine.
Not every wellness habit needs to become a medical treatment.
Which Supplements Are Best for Anxiety?
This is probably why you clicked on this article.
But there’s no scientifically defensible universal ranking of the best supplement for anxiety.
Different supplements have been studied for different outcomes.
For example:
Ashwagandha: some evidence for stress and insomnia; anxiety evidence remains unclear.
Magnesium: essential nutrient, but evidence for supplementation specifically treating anxiety remains limited.
L-theanine: interesting early evidence around stress and relaxation, but more research is needed.
Omega-3: some meta-analytic evidence suggests possible improvement in anxiety symptoms, but certainty remains low.
Rhodiola: marketed for stress and fatigue, but evidence is limited.
Melatonin: primarily relevant to sleep/circadian issues rather than being a general anxiety treatment.
Chamomile: preliminary evidence, but not conclusive.
That answer isn’t as exciting as:
“Take these three supplements and eliminate anxiety.”
But it’s considerably more accurate.
What About Supplements for Lowering Cortisol?
This has become one of the biggest wellness trends online.
People are increasingly searching for:
supplements to lower cortisol
best vitamins for high cortisol
how to lower cortisol naturally
cortisol supplements
But cortisol isn’t a toxin.
It’s a hormone your body naturally needs.
Cortisol plays important roles in your stress response, metabolism and normal daily physiology.
Having stress doesn’t automatically mean you have medically abnormal cortisol levels.
And waking at 3AM, gaining weight or feeling tired doesn’t diagnose “high cortisol.”
Before buying supplements specifically to “fix” cortisol, read our full cortisolmaxxing guide.
Supplements vs Lifestyle: What Matters More?
Here’s the part supplement companies don’t make much money from.
Before building an expensive supplement stack, look at the fundamentals.
Are you sleeping enough?
Are you eating enough nutritious food?
Are you physically active?
Are you consuming huge amounts of caffeine?
Are you drinking heavily?
Are you permanently online?
Are you under enormous stress?
Do you ever actually rest?
Are you trying to solve a lifestyle problem with a capsule?
Supplements can sometimes have a role.
But they shouldn’t distract from the basics.
For more practical ideas, read How to Improve Your Mental Health: 15 Simple Daily Habits That Actually Help.
A Better Natural Stress Routine
If your goal is simply to feel calmer, start with habits that don’t require buying anything.
Morning:
Get outside for natural daylight and take a short walk.
During the day:
Move regularly, eat properly, stay hydrated and pay attention to how much caffeine you’re consuming.
After work:
Create some separation between work and home life.
Evening:
Reduce stimulating content and give yourself time to wind down.
Before bed:
Keep your room comfortable, dark and quiet and try to maintain a consistent sleep routine.
If relaxation techniques interest you, you can also read our vagus nerve reset guide for a closer look at what’s supported by physiology and what’s mostly social-media hype.
Do You Actually Need a Supplement?
Before taking something new, ask:
Why am I taking this?
Not:
“TikTok says it’s good for women.”
What specific problem are you trying to solve?
Stress?
Poor sleep?
A diagnosed deficiency?
Persistent anxiety?
Fatigue?
Once you know the problem, you can make a more sensible decision about what — if anything — is appropriate.
For example, someone with persistent anxiety may benefit more from evidence-based psychological support than from continually experimenting with supplements.
Someone who’s constantly exhausted may need to investigate the reason for the fatigue.
Someone sleeping five hours a night probably needs to address their sleep before trying to optimise their supplement stack.
Start with the problem, not the product.
Supplements You Should Be Particularly Careful With
The word natural can create a false sense of security.
Plants contain biologically active compounds.
Supplements can interact with medicines.
Products can have side effects.
And taking more doesn’t automatically produce better results.
Some supplements promoted for anxiety have specific safety concerns.
Kava, for example, has been studied for anxiety but has also been associated with serious liver injury.
Ashwagandha has also been linked to rare cases of liver injury and can interact with certain medicines.
Melatonin can interact with medicines and isn’t suitable for everyone.
That’s why copying somebody else’s supplement stack isn’t a particularly good health strategy.
How to Choose a Supplement More Safely
If you decide to take a supplement:
Check the evidence.
Don’t rely exclusively on influencers or product reviews.
Check the ingredients.
Know what you’re actually taking.
Avoid enormous proprietary blends.
If you can’t tell how much of each ingredient is included, evaluating the product becomes difficult.
Don’t assume higher doses are better.
Check for medicine interactions.
Be especially cautious during pregnancy or breastfeeding.
Tell your healthcare professional what supplements you take.
And be sceptical of products promising to:
“Reset your nervous system.”
“Balance all your hormones.”
“Detox cortisol.”
“Cure anxiety naturally.”
Human physiology isn’t that simple.
When Anxiety Needs More Than Supplements
Occasional stress and anxiety are normal parts of life.
An anxiety disorder is different.
If anxiety becomes persistent, difficult to control or begins interfering with:
Work.
Sleep.
Relationships.
Leaving the house.
Eating.
Socialising.
Your ability to function normally.
then supplements shouldn’t be your only strategy.
Effective treatments for anxiety disorders include psychological therapies and, when appropriate, medication.
Getting professional support doesn’t mean you’ve failed at “natural wellness.”
It means you’re treating a health problem like a health problem.
The Bottom Line
So, what are the best supplements for anxiety and stress in 2026?
The evidence isn’t strong enough to crown one universal winner.
Ashwagandha has some promising research for stress and sleep.
Magnesium is an essential nutrient but shouldn’t automatically be treated as an anxiety remedy.
L-theanine has interesting early evidence.
Omega-3 research is promising but uncertain.
Rhodiola remains an area where marketing often exceeds the strength of the evidence.
Melatonin has specific sleep-related uses but isn’t a general anxiety supplement — and in the UK, it’s prescription-only.
Chamomile has some preliminary evidence but isn’t a proven anxiety treatment.
The most important thing to remember is:
“Natural” and “evidence-based” aren’t the same thing.
Supplements can be useful in the right circumstances.
But good sleep, regular movement, meaningful relationships, appropriate nutrition, stress management and professional support when needed deserve just as much attention.
Probably more.
Frequently Asked Questions About Supplements for Stress and Anxiety
What is the best natural supplement for anxiety?
There isn’t enough evidence to identify one supplement as universally best for anxiety. Different products have varying levels of evidence, and anxiety disorders should be discussed with an appropriate healthcare professional rather than self-treated exclusively with supplements.
Does ashwagandha help with anxiety?
Some studies of ashwagandha have reported benefits relating to stress and sleep. However, current evidence about its effects specifically on anxiety remains unclear.
Does magnesium help with anxiety?
Magnesium is an essential nutrient, but evidence that magnesium supplementation treats anxiety is limited. People with an adequate dietary intake shouldn’t assume that taking additional magnesium will reduce anxiety.
Does L-theanine reduce anxiety?
L-theanine has been studied for stress, relaxation and anxiety-related outcomes, with some promising results. However, more high-quality research is needed before it can be considered an established anxiety treatment.
Does omega-3 help anxiety?
Some research suggests omega-3 supplementation may reduce anxiety symptoms, but recent reviews have highlighted uncertainty in the quality of the evidence. More high-quality research is needed.
Is melatonin good for anxiety?
Melatonin is primarily involved in regulating sleep. Research suggests it may reduce anxiety in specific circumstances such as before medical procedures, but this doesn’t establish it as a general treatment for anxiety.
Can I take several stress supplements together?
Combining supplements can increase the possibility of side effects or interactions. Speak with a pharmacist, doctor or other appropriately qualified healthcare professional before combining multiple supplements, particularly if you take medicines or have a health condition.
Are natural supplements safe during pregnancy?
Not necessarily. “Natural” doesn’t mean pregnancy-safe. Some supplements should be avoided entirely during pregnancy, including ashwagandha. Discuss supplements with an appropriate healthcare professional before taking them while pregnant or breastfeeding.
Sources and further reading
Read Next on Live Well Daily
Cortisolmaxxing: What It Is and Whether You Really Need to Lower Cortisol
Vagus Nerve Reset: What It Is and How to Calm Your Nervous System
How to Improve Your Mental Health: 15 Simple Daily Habits That Actually Help
Sleepmaxxing: The Viral Wellness Trend for Better Sleep
Why Do I Keep Waking Up at 3AM? 9 Reasons Women Wake Up at Night
How to Get More Energy Naturally: 10 Simple Habits for Women Who Feel Tired All the Time
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