Yes, tart cherry and magnesium can be taken together, and they make a sensible evening pair because they do different jobs. Tart cherry is a fruit studied for its natural melatonin and polyphenols, while magnesium is a mineral that 48% of Americans get too little of from food. Each has small human sleep trials behind it, and many people take them in the same drink 30 to 60 minutes before bed.
Key Takeaways
- In 20 healthy adults, 7 days of tart cherry juice concentrate raised urinary melatonin and increased time in bed, total sleep time and sleep efficiency compared with placebo (Howatson et al., 2012).
- Tart cherry sleep trials used juice for 1 to 2 weeks, up to 240 mL twice a day (Losso et al., 2018); magnesium trials ran 4 to 8 weeks.
- In 155 adults who reported poor sleep, 250 mg of magnesium as bisglycinate 30 to 60 minutes before bed for 4 weeks improved a sleep questionnaire score more than placebo (Schuster et al., 2025).
- The trials tested each one on its own, so taking both is a pairing of two studied ingredients, not a tested combination.
- Keep supplemental magnesium at or under 350 mg a day (NIH ODS).
Featured in this article
Melatonin-Free Sleep PowderTart cherry powder and tart cherry extract with glycine, magnesium and apigenin in an unsweetened drink that helps you wind down at night, with no added melatonin.
Join the WaitlistComing soon. Third-party tested ingredients.
Tart Cherry vs Magnesium for Sleep at a Glance
| Tart cherry | Magnesium | |
|---|---|---|
| What it is | The sour cherry, Prunus cerasus; Montmorency is the variety studied | An essential mineral |
| Why it is studied for sleep | Natural melatonin and polyphenols, including procyanidin B-2 | A cofactor in more than 300 enzyme systems, and a common shortfall in diets |
| Form in the trials | Juice or juice concentrate | Bisglycinate or oxide tablets and capsules |
| Amount studied | 240 mL of juice twice a day in one trial | 250 mg (bisglycinate) to 500 mg (oxide) of magnesium a day |
| Trial length | 1 to 2 weeks | 4 to 8 weeks |
| What changed | Urinary melatonin, sleep time and sleep efficiency | Sleep questionnaire scores; time to fall asleep in one trial |
What the Tart Cherry Studies Measured
Tart Montmorency cherries contain melatonin, the hormone your body releases in the evening, along with other plant compounds. In a double-blind crossover trial, 20 healthy volunteers drank a tart cherry juice concentrate or a placebo drink for 7 days each. With the cherry juice, total urinary melatonin was higher, and activity monitors (actigraphy) recorded more time in bed, more total sleep time and higher sleep efficiency. The timing of the melatonin rhythm did not shift (Howatson et al., 2012).
In a second, smaller crossover pilot, 11 adults over 50 with insomnia were enrolled and 8 finished. They drank 240 mL of tart cherry juice twice a day for 2 weeks and a placebo for 2 weeks. Sleep lab recordings showed 84 more minutes of sleep with the cherry juice. Blood tests showed a lower kynurenine to tryptophan ratio, and in cell studies the cherry compound procyanidin B-2 slowed the enzyme that breaks tryptophan down, which may leave more tryptophan for the body to use (Losso et al., 2018). It is an early result in a small group. Our guide to tart cherry for sleep covers these trials in more detail, and melatonin vs tart cherry compares the fruit with a measured melatonin dose.
What the Magnesium Studies Measured
Magnesium is a cofactor in more than 300 enzyme systems, and 48% of Americans get less than they need from food and drinks (NIH ODS). In the largest recent trial, 155 adults aged 18 to 65 who reported poor sleep took 250 mg of magnesium as bisglycinate or a placebo 30 to 60 minutes before bed for 4 weeks. The magnesium group improved more on a sleep questionnaire, a small effect, and in an exploratory analysis people who ate fewer magnesium-rich foods tended to improve more. About 93% reported no side effects (Schuster et al., 2025).
An earlier double-blind trial in 46 older adults who had insomnia and low magnesium intake gave 500 mg of magnesium a day as oxide tablets for 8 weeks. The magnesium group fell asleep sooner, had better sleep efficiency and had higher blood melatonin than the placebo group (Abbasi et al., 2012). That dose is above today's 350 mg daily upper limit for supplemental magnesium, which is one reason gentler forms at lower amounts are the usual choice. See magnesium glycinate for sleep for more.
Can You Take Tart Cherry and Magnesium Glycinate Together?
Yes. Tart cherry is a food and magnesium is a mineral, they do different jobs, and they suit the same time of evening, so many people take them together. The practical points:
- Timing. Magnesium bisglycinate was studied 30 to 60 minutes before bed. Tart cherry trials gave a daily serving, split into two in one trial, so an evening serving fits alongside the magnesium.
- Amounts. Count the magnesium from every product you take and keep the supplemental total at or under 350 mg a day. Magnesium from food does not count toward that limit.
- Consistency. The tart cherry trials ran 1 to 2 weeks and the magnesium trials 4 to 8 weeks, all with daily use.
- Comfort. Most people tolerate both well. Some forms of magnesium, such as oxide, can loosen stools; glycinate is the gentle choice. Our best time to take magnesium guide covers timing. Talk with your clinician first if you have kidney concerns, are pregnant or breastfeeding, or take prescription medicine.
If you also wonder about tart cherry vs magnesium for sleep, the answer is that you do not have to choose. Tart cherry brings fruit compounds studied for melatonin and sleep time; magnesium covers a mineral many diets run short on.
Juice, Extract or Powder: How to Pair Them
| Way to pair | What to know |
|---|---|
| Tart cherry juice plus a magnesium capsule | Juice is the form used in the sleep trials, but a glass carries natural fruit sugar and calories every night |
| Juice mixed with magnesium powder | The popular evening drink; see our sleepy girl mocktail recipe |
| Tart cherry extract capsule plus magnesium | Little sugar and small servings; check the label for the tart cherry amount |
| An all-in-one tart cherry and magnesium powder | One scoop in water, with the magnesium amount stated on the label and no juice needed |
Powders and extracts are a different form from the juice in the trials, so their amounts do not convert gram for gram. What you gain is convenience and a nightly drink without the sugar of a full glass of juice. For the juice side, see tart cherry juice benefits.
Who Might Choose Which
| If you | Consider |
|---|---|
| Eat few greens, nuts, seeds or whole grains | Magnesium first, in a gentle form such as glycinate |
| Want a fruit-based option with natural melatonin | Tart cherry |
| Want one simple evening routine | Both together, 30 to 60 minutes before bed |
| Want a measured melatonin amount with no drink to mix | A melatonin nasal spray shortly before bed |
Where Our Sleep Powder Fits
Our Melatonin-Free Sleep Powder, coming soon, is the tart cherry and magnesium pairing in one scoop: tart cherry and 200 mg of magnesium from two gentle forms, plus 3 g of glycine, myo-inositol and apigenin, mixed in water 30 to 60 minutes before bed. It has no added melatonin, no 5-HTP and no added sugar or sweeteners. Join the waitlist on the product page to hear when it launches. Benefits from a nightly routine build with consistent use: months 1 to 2 can bring early changes, and 3 months and beyond is where the full benefit builds.
If you want melatonin itself, our Melatonin Nasal Spray gives 200 mcg of melatonin with 17 mg of L-theanine per 2-spray serving, in alkaline water, used in the evening shortly before bed. It is absorbed through the lining of the nose, so some of each dose skips digestion. See our magnesium glycerophosphate ingredient page and sleep health hub for more.
Featured in this article
Melatonin Nasal Spray200 mcg of melatonin with L-theanine per serving, for your bedtime routine.
Shop Melatonin Nasal SprayThird-party tested ingredients. Vegan, non-GMO, made in the USA.
Frequently Asked Questions
Can you take tart cherry and magnesium glycinate together?
Yes. They do different jobs and suit the same time of day. Keep supplemental magnesium at or under 350 mg a day.
Is tart cherry and magnesium good for sleep?
Each has small human sleep trials: tart cherry juice increased sleep time and urinary melatonin, and magnesium bisglycinate improved sleep questionnaire scores. The trials tested them separately.
Tart cherry vs magnesium for sleep: which is better?
They do different jobs, so many people take both. Magnesium fills a common dietary gap, and tart cherry adds fruit compounds including natural melatonin.
When should I take tart cherry and magnesium?
In the evening, 30 to 60 minutes before bed, the window used for magnesium bisglycinate. Tart cherry trials used daily servings.
Can I drink tart cherry juice with magnesium before bed?
Yes. That is the idea behind the sleepy girl mocktail. A powder or extract gives the pairing without the sugar of a full glass of juice.
How much tart cherry juice was used in sleep studies?
One trial used 240 mL twice a day for 2 weeks. Another used a juice concentrate daily for 7 days.
How much magnesium should I take with tart cherry for sleep?
The recent sleep trial used 250 mg of magnesium as bisglycinate. Stay at or under 350 mg a day from supplements.
Is there a tart cherry and magnesium powder?
Yes. Our Melatonin-Free Sleep Powder, coming soon, combines tart cherry with 200 mg of magnesium, glycine, myo-inositol and apigenin. Join the waitlist on the product page.
Sources
- Howatson G, Bell PG, Tallent J, Middleton B, McHugh MP, Ellis J. Effect of tart cherry juice (Prunus cerasus) on melatonin levels and enhanced sleep quality. European Journal of Nutrition, 2012. https://pubmed.ncbi.nlm.nih.gov/22038497/
- Losso JN, Finley JW, Karki N, et al. Pilot study of the tart cherry juice for the treatment of insomnia and investigation of mechanisms. American Journal of Therapeutics, 2018. https://pubmed.ncbi.nlm.nih.gov/28901958/
- Schuster J, Cycelskij I, Lopresti A, Hahn A. Magnesium bisglycinate supplementation in healthy adults reporting poor sleep: a randomized, placebo-controlled trial. Nature and Science of Sleep, 2025. https://doi.org/10.2147/NSS.S524348
- Abbasi B, Kimiagar M, Sadeghniiat K, Shirazi MM, Hedayati M, Rashidkhani B. The effect of magnesium supplementation on primary insomnia in elderly: a double-blind placebo-controlled clinical trial. Journal of Research in Medical Sciences, 2012. https://pubmed.ncbi.nlm.nih.gov/23853635/
- NIH Office of Dietary Supplements. Magnesium: Fact Sheet for Health Professionals. https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/
These statements have not been evaluated by the Food and Drug Administration. This content is for education and is not medical advice. Our products are not intended to diagnose, treat, cure or prevent any disease. Talk with a healthcare provider before starting a new supplement if you are pregnant, breastfeeding or taking medication.
Leave a comment
All comments are moderated before being published.
This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.