Do Pistachios Contain Melatonin?


Your physique naturally produces the hormone melatonin to sign that it’s time to fall asleep (1, 2).

As sleep can considerably have an effect on your well being, it’s useful to know that sure meals, together with pistachios, include melatonin (3, 4, 5, 6).

Actually, pistachios and different food-based sources of melatonin like grains and mushrooms might assist promote sleep with out inflicting grogginess (3, 4, 5, 6).

This text particulars the melatonin content material of pistachios and the way it may have an effect on your physique.

Your physique usually makes melatonin in response to darkness. In most individuals, its manufacturing often peaks round 2 a.m. (1, 2, 7, 8).

Melatonin-containing meals can enhance the quantity of this sleep-promoting hormone in your physique (2, 7).

Because of this the naturally occurring melatonin in pistachios might assist your physique perceive that it’s time for mattress (2, 7).

Simply 1 ounce (28 grams) of pistachios can pack about 6 mg of melatonin, which is akin to the quantity discovered within the common melatonin complement (2, 7).

It’s essential to notice that melatonin doesn’t trigger grogginess. It merely alerts your physique to calm down as a result of it’s time to fall asleep (8).

Moreover, melatonin can help the physique in different methods. As an illustration, it may possibly assist hold your eyes wholesome, calm abdomen ulcers and heartburn, and quell tinnitus signs (1, 2, 8).


The melatonin present in meals like pistachios gained’t make you groggy, however it might sign your physique that it’s time to sleep. One ounce (28 grams) of pistachios packs about 6 mg of melatonin.

Extra analysis on simply how a lot exogenous melatonin — which means melatonin that comes from meals or supplmeents — is required to have an effect on your physique.

A 3.5-ounce (100-gram) serving of shelled pistachios accommodates 23 mg of melatonin. For reference, 1 cup holds roughly 4.5 ounces (128 grams) of shelled pistachios (2, 7, 9).

In the meantime, a melatonin supplement will often include 0.2–10 mg per dose (8, 10, 11, 12).

Take into account that the Meals and Drug Administration (FDA) doesn’t regulate dietary supplements the identical approach it regulates precription medicines, and an optimum dose has not but been established (8, 10, 11, 12).

Given the decreased oversight, it isn’t straightforward to discern the precise contents and make-up of a given complement like melatonin.

Nevertheless, in lots of different nations, melatonin dietary supplements aren’t bought over-the-counter and should require a prescription, so these shall be regulated and monitored accordingly.

Whereas most research on melatonin dietary supplements administer 1–10 mg at a time, there presently aren’t really useful dosage directions (8, 10, 11, 12).

Nevertheless, taking 0.2–5 mg 60 minutes earlier than bedtime is usually thought-about protected for adults. Greater than 30 mg of supplemented melatonin might be potentially harmful (10, 12, 13).

Extra analysis is required to find out whether or not the physique absorbs melatonin from meals sources otherwise than melatonin from complement sources.

It is best to seek the advice of a healthcare skilled earlier than taking melatonin dietary supplements, particularly when you take blood thinners or medicines for epilepsy.

Grains, mushrooms, and pistachios are among the many highest meals sources of melatonin (2).

Under are the melatonin contents of some frequent meals (2, 9):

  • Pistachios: 230,000 nanograms of melatonin per gram
  • Mushrooms: 4,300–6,400 nanograms per gram
  • Oats: 91 nanograms per gram
  • Cherries: 10–20 nanograms per gram
  • Tomatoes: 1–67 nanograms per gram
  • Cow’s milk: 0.014 nanograms per milliliter

It’s price noting that though cow’s milk doesn’t include a major quantity of melatonin, it does pack excessive quantities of tryptophan. Tryptophan is an amino acid that your physique can convert to melatonin (7).


Pistachios include a considerably greater focus of naturally occurring melatonin than many frequent meals.

Melatonin is a hormone that alerts your physique that it’s time to sleep.

Whereas your physique naturally produces melatonin, it can be present in dietary supplements and meals like pistachios.

Nevertheless, it’s price preserving in thoughts that melatonin works in response to darkness. Protecting your room darkish and screens off a number of hours earlier than bedtime may provide help to get higher relaxation.

Additional analysis on the connection between the naturally occurring melatonin in meals and its bodily results is required. Nevertheless, barring any nut allergy symptoms, it actually can’t damage to attempt.

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