Melatonin side effects: What you need to know · Greece

Melatonin is a popular supplement for improving sleep and managing jet lag, but like any supplement, it can have potential side effects. Although melatonin is generally safe and well tolerated, understanding its possible impacts can help you use it responsibly.

In this article, we will cover the most common side effects of melatonin, how to avoid them, and when to seek medical advice.

What is melatonin?

Melatonin is a hormone naturally produced by the brain's pineal gland. It regulates the body's circadian rhythm, signalling when it is time to sleep. As a supplement, melatonin is widely used to:

Improve sleep quality.
Treat sleep disorders such as insomnia.
Manage jet lag or shift work sleep disorder.

Common side effects of melatonin

Most people experience few or no side effects from melatonin, especially when taken in low doses. However, some individuals may notice the following:

1. Daytime drowsiness

Why it happens: Taking too high a dose or taking melatonin too late at night can result in drowsiness the next morning.
How to prevent: Stick to the recommended dose (usually 1-3 mg) and take it 30-60 minutes before bedtime.

2. Headaches

Why it happens: Changes in brain chemistry or blood flow caused by melatonin can trigger mild headaches in some people.
How to prevent: Stay hydrated and avoid taking too high a dose.

3. Nausea or stomach upset

Why it happens: Some people experience digestive discomfort after taking melatonin, especially on an empty stomach.
How to prevent: Take melatonin with a small snack if you are prone to nausea.

4. Dizziness

Why it happens: Melatonin can cause slight changes in blood pressure or blood flow, leading to dizziness.
How to prevent: Start with a low dose and avoid activities that require attention (such as driving) right after taking melatonin.

5. Mood changes

Why it happens: Melatonin influences hormones and brain activity, which can occasionally lead to irritability, anxiety, or mild depression.
How to prevent: Monitor your emotional well-being and adjust the dose or discontinue use if you notice significant mood changes.

Less common side effects of melatonin

Although rare, some individuals may experience these less common side effects:

1. Hormonal imbalances

Melatonin is a hormone, and high doses over long periods can impact other hormonal functions, particularly in women, potentially affecting menstrual cycles or fertility.

2. Vivid dreams or nightmares

Melatonin can intensify dreams by increasing REM sleep, which may be disturbing for some users.

3. Decreased body temperature

Melatonin can slightly lower body temperature, which may cause some people to feel cold.

Melatonin and drug interactions

Melatonin can interact with certain medications, potentially causing side effects or reducing the effectiveness of the supplement or medication. Common interactions include:

Blood thinners: Melatonin may increase the risk of bleeding.
Sedatives: Combining melatonin with other sleep medications can increase drowsiness.
Blood pressure medications: Melatonin can slightly alter blood pressure, requiring caution for those taking medication.
Immunosuppressants: Melatonin may potentially interfere with these medications.

Always consult your doctor if you are taking other medications and plan to use melatonin.

Who should avoid melatonin?

Although melatonin is generally safe, it is not suitable for everyone. Avoid or use melatonin with caution if you:

Are pregnant or breastfeeding: There are few studies on the safety of melatonin during pregnancy or breastfeeding.
Have autoimmune diseases: Melatonin may overstimulate the immune system.
Suffer from depression or anxiety: In some cases, it may worsen symptoms.
Are under 3 years old: Melatonin should not be given to very young children without medical supervision.

How to minimise melatonin side effects

Start with a low dose
- Start with 0.5-1 mg and increase gradually if needed. Higher doses do not necessarily improve sleep and may increase side effects.
Take it at the right time
- Take melatonin 30-60 minutes before bedtime to align with your body's natural sleep cycle.
Avoid long-term use
- Use melatonin for short-term needs, such as jet lag or temporary sleep disturbances. For chronic sleep problems, consult a doctor.
Consider multi-ingredient supplements
- Products like TuttiBear Dormir Gomas combine melatonin with calming herbs like chamomile and L-theanine, reducing the likelihood of side effects.

Frequently asked questions about melatonin side effects

Q1: Is it possible to overdose on melatonin?

Although melatonin overdoses are rarely dangerous, taking too much can cause side effects such as drowsiness, nausea, and disrupted sleep. Follow the recommended doses to avoid these issues.

Q2: How long do melatonin side effects last?

Most side effects, such as grogginess or nausea, disappear within a few hours as the supplement is metabolised.

Q3: Can melatonin affect hormones?

Yes, as a hormone, melatonin can influence other hormonal functions, particularly with prolonged or excessive use.

Q4: Is melatonin safe for children?

Melatonin is generally safe for children in low doses (0.5-3 mg), but should only be used under medical supervision.

Final thoughts: Understanding melatonin side effects

Melatonin is a safe and effective supplement for most people when used correctly. However, like any supplement, it can cause side effects if misused. To minimise risks:

Stick to the recommended dose.
Monitor your body's response.
Combine melatonin with good sleep hygiene for best results.

For a balanced and gentle approach, try TuttiBear Dormir Gomas. With a blend of melatonin and natural calming ingredients, these gummies provide effective sleep support without overloading your system.

References

National Sleep Foundation. Melatonin and Sleep.
Mayo Clinic. Melatonin Side Effects and Risks.
National Institutes of Health. Melatonin Safety.

Melatonin side effects: What you need to know before taking it