Neurology

What Should You Consider When Using Melatonin Supplements?

BHT CLINIC Sağlık Rehberi13 November 20267 min read

The most important thing to keep in mind when using melatonin supplements is that they are not ordinary sleeping pills and should always be taken under a doctor's supervision. Easily accessible online or at pharmacies, these supplements can actually disrupt your sleep pattern rather than improve it if taken at the wrong dose or time. To protect your body's natural biorhythm, you should avoid using them blindly and consult a specialist to identify any underlying sleep problems.

In Brief

  • Melatonin is a natural hormone secreted by the brain in the dark.
  • It is not a sleeping pill or a drug that numbs the central nervous system.
  • It is effective for rhythm disorders like jet lag or shift work.
  • Unconscious use can cause next-day grogginess and headaches.
  • It does not offer a sufficient standalone solution for chronic insomnia.

What is Melatonin and How Does it Work in the Body?

The pineal gland, located right in the center of our brain, secretes a hormone that tells the body it is time to sleep when it gets dark. The clearest answer to the frequently asked question of what melatonin is, is that it's this natural messenger that sets our body's biological clock. When the retinas in our eyes detect a decrease in light, they send a signal to the brain to start producing melatonin. This hormone, which begins to rise in the blood during the evening hours, reaches its peak between midnight and two in the morning. With the morning sunlight, its level drops rapidly, allowing us to wake up.

In major, bustling cities that live twenty-four hours a day like Istanbul, where light pollution is intense, the bright screens and streetlights we are exposed to in the evenings suppress this natural release. When the body does not feel dark enough, melatonin production is delayed, and the time it takes to fall asleep is prolonged. Supplements taken externally are developed to complete this signal that the body underproduces. However, this hormone is not a substance that puts the brain to sleep by numbing it; it is simply a key that delivers the message to the body that it is time to rest.

Is Melatonin a Sleeping Pill? Common Misconceptions

One of the most common misconceptions in society is seeing these supplements as direct sleep-inducing drugs. So, is melatonin a sleeping pill? No, these supplements work entirely differently from traditional sleeping pills that force you to sleep by suppressing the central nervous system. While traditional sleeping pills slow down brain waves and put you into a state of deep sedation, melatonin merely whispers to your body's biological clock that it is bedtime.

If your insomnia is rooted in different medical issues such as intense stress, anxiety disorder, restless legs syndrome, or sleep apnea, swallowing this supplement will not solve your problem. Simply trying to reset the clock can mask the underlying disease. As we pointed out in our article titled Biological Clock and Depression: The Effect of Sleep Patterns, which examines the effects of sleep patterns on mood, rhythm disorders must be addressed from multiple angles. If you continue to scroll through your phone or watch television in bed after taking the supplement, the blue light entering your eyes will largely neutralize the supplement's effect.

When Are Melatonin Supplements Used?

Experts generally recommend this supplement to resolve mismatches between the body's internal clock and the outside world's clock. The most well-known use case is jet lag, which occurs after flights across different time zones. For instance, when you fly from Istanbul to the United States, your body still operates on Türkiye time. Taking a low-dose supplement for a few days to adapt to the new time zone speeds up the adaptation process.

Another common use is to establish a sleep routine for shift workers. A healthcare professional or security guard coming off a night shift might need this supplement to regulate their internal clock when they struggle to sleep during the day. Additionally, in individuals over the age of sixty-five, whose natural hormone production decreases due to the calcification of the pineal gland with advancing age, low-dose use under physician supervision may be recommended. However, in none of these situations should the duration of use generally exceed a few weeks. Long-term use must definitely be planned under the follow-up of a specialist.

The Risks of Unconscious Melatonin Use

The fact that they are sold over-the-counter does not mean these products are completely innocent. Self-administering high doses or taking them at the wrong times paves the way for various health problems. Among the most frequently encountered side effects of melatonin are next-day grogginess and difficulty focusing. A high dose taken late at night remains active in the blood even though you wake up in the morning, causing you to experience a mental fog throughout the day.

In addition, vivid and disturbing dreams, nightmares, a mildly depressive mood, and morning headaches are seen in some patients. Nausea, dizziness, and digestive system disorders are also among the reported side effects. The body constantly taking in large amounts of hormones from the outside carries the risk of disrupting its own natural production balance in the long run. Furthermore, its use in children and adolescents without medical necessity is strictly not recommended, as it can affect hormonal development and the puberty process.

Proper Use: Dosage and Timing Mistakes

Timing and dosage are vital to fully benefit from the supplement. The most common mistake is taking the supplement in the middle of the night, such as at 02:00 or 03:00, after failing to fall asleep. This situation causes you to be unable to wake up until noon the next day or suffer from a severe headache. The ideal time to use it is about one to two hours before your planned sleep time. For example, if you plan to sleep at 23:00, you should take the medication around 21:30, then dim the lights and step away from screens.

Regarding dosage, the logic that a higher dose will provide better sleep is completely wrong. According to medical studies, low doses between 0.5 milligrams and 3 milligrams are generally sufficient to make falling asleep easier. High-dose tablets of 5 milligrams or 10 milligrams sold in the market should not be used unless prescribed by a physician for a specific condition. A high dose does not increase efficacy; rather, it significantly raises the risk of side effects.

Who Should Be Careful When Using Melatonin?

Certain patient groups and people who use regular medication must consult their doctors before taking this supplement. Especially in those using blood thinners, externally taken hormone supplements can increase the risk of bleeding. In blood pressure patients, it can alter the effect of blood pressure-lowering drugs, leading to sudden fluctuations in blood pressure. Diabetic patients must also be careful due to its possible effects on blood sugar balance.

Those with autoimmune diseases, those using immunosuppressive drugs, and patients who have undergone organ transplants should stay away from this supplement because the hormone may have stimulating effects on the immune system. Since there are not enough safety studies on pregnant women and nursing mothers, its use during these periods is not recommended. In epilepsy patients, there is some data suggesting it might lower the seizure threshold, so it should absolutely not be used without specialist approval.

When to See a Doctor

Although sleep problems are often temporary, they can sometimes be a harbinger of serious health issues. If your insomnia complaint has been ongoing for more than a month, or if you have difficulty falling asleep or staying asleep at least three nights a week, you should definitely see a specialist. If you experience excessive daytime sleepiness or narrowly avoid falling asleep during meetings or while driving, this is not a simple rhythm disorder. For detailed information on the subject, you can review our article Chronic Fatigue Syndrome: What Causes Constant Sleepiness?.

If you experience any of the following emergency symptoms, you should call 112 without wasting time or visit the nearest emergency room:

  • Shortness of breath, swelling in the face or throat after taking the supplement (allergic reaction).
  • Sudden loss of balance and falls accompanied by a feeling of extreme grogginess.
  • Confusion, not knowing where you are, or severe disorientation.
  • Sudden and severe palpitations accompanied by chest pain.

Sleep Disorder Treatment and Process at BHT CLINIC

A healthy sleep is the main pillar of your overall health. As BHT CLINIC İstanbul Tema Hastanesi, we work with a multidisciplinary approach to offer permanent solutions to your insomnia problems. For proper sleep disorder treatment, it is first necessary to find the source of the problem. When you apply to the Neurology outpatient clinic of our hospital, our specialist physicians will take your detailed medical history and perform your necessary neurological examinations.

During the diagnostic process, if deemed necessary, you may be hosted for a night in our fully equipped sleep laboratory (polysomnography). During this test, your brain waves, heart rhythm, breathing, and muscle movements are recorded in detail. Thus, underlying diseases such as sleep apnea, restless legs syndrome, or periodic limb movement disorder are definitively identified. Your treatment plan is personalized entirely according to your physiological needs, age, and lifestyle, not with blindly prescribed supplements. We are by your side for all your neurological complaints with our 24/7 emergency service and expert staff.

Frequently Asked Questions

Can melatonin be taken every night?

It is generally for short-term use. It is used for a few days to a few weeks in situations like jet lag or shift changes. Unless recommended by a physician, taking it every night for months is not advised.

Does melatonin cause weight gain?

There is no scientific evidence that it directly causes weight gain. On the contrary, regular sleep helps with weight control by balancing the metabolism. However, other additives in the supplements should be examined.

Is melatonin addictive?

Unlike traditional sleeping pills, it does not cause physical addiction or withdrawal syndrome. However, a psychological belief that you cannot sleep without taking the medication may develop.

Should melatonin pills be taken on an empty or full stomach?

Taking it on a light stomach, usually one or two hours before bedtime, increases its absorption. Taking it immediately after a very heavy and fatty meal can delay the time it takes to mix into the blood.

Is melatonin given to children to help them sleep?

It can only be prescribed by pediatric neurology or psychiatry specialists in special cases such as autism or attention deficit hyperactivity disorder. It should absolutely not be used to establish a sleep routine in healthy children.

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This article is for informational purposes only; please consult your physician for diagnosis and treatment.

See a physician if your complaint continues

This article is for general information and does not replace a medical examination. If your symptoms persist, book an appointment with the relevant department.

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