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Is royal jelly dangerous?

Dr en Pharmacie

Royal jelly is credited with benefits for immunity and menopausal symptoms. But does it have side effects? Any contraindications? What are the risks involved?

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dangers of royal jelly
✓ WHO ARE WE?
An editorial team specializing in nutrition. Authors of the book Beneficial Foods (Mango Editions) and the podcast Food Revolutions.

A hive product used as a dietary supplement

The royal jelly is a hive product with a milky, whitish appearance produced by worker bees. Originally, it is the queen’s exclusive food throughout her life. 

Its nutrients give it exceptional longevity compared to other bees, as well as greater fertility. 

The nutrients in royal jelly have made it a common dietary supplement. It contains, in particular, proteins, lipids including 10-HDA acid, and many B-group vitamins. 

Also read | Advice from a pharmacist on how to choose your royal jelly

These supplements, when taken as a course, are reputed to help with: 

  • fight fatigue and stress,
  • fight the effects of aging,
  • relieve symptoms related to menopause or painful periods. 
  • have a positive effect on the immune system and the cardiovascular system. 

However, in 2012 European authorities banned a number of health claims due to a lack of scientific evidence

Royal jelly can be consumed fresh, or in the form of capsules, tablets, or vials

However, don’t expect to savor royal jelly like honey! While the latter is delicious, royal jelly does not have the same flavor qualities

royal jelly cancer risk
Vials of royal jelly

What are its side effects?

For external use

Although some benefits are recognized, royal jelly is not free of side effects, even if they remain rare!

When used topically, royal jelly may cause or worsen skin inflammation (dermatitis).

For internal use

Similarly, it was reported in a study that royal jelly may lower blood pressure and increase the risk of hypotension, particularly if you are taking antihypertensive medication.

However, the study was conducted in rats, so the reliability of the conclusion can be questioned.

Precautions for use

Even if the risk of overdose seems unlikely, follow the dosages indicated by the manufacturer, as well as the recommended duration of the treatment.

Prefer taking it on an empty stomach, in the morning before breakfast, and store your supplement in a cool, dry place (2-5 °C), avoiding exposure to sunlight.

In any case, don’t rush to use your jar of royal jelly or vials right away. Start with small doses to see if you develop signs of an allergy.

Vous avez de l’eczéma, le nez qui coule, les yeux qui piquent, et des démangeaisons ? Arrêtez la cure dans l’immédiat. Ne la reprenez que si vous avez la certitude que la gelée royale n’est pas la grande coupable. 

royal jelly danger
During a course of royal jelly, take it in the morning on an empty stomach

Royal jelly and its contraindications

Allergy to honey or pollen

Consumption of royal jelly is contraindicated if you have a honey allergy, a pollen allergy, but also allergies to bee stings and plants of the Asteraceae family, such as the daisy or dandelion.

It is also not recommended to take royal jelly if you suffer from asthma or atopic eczema. 

Pregnant or breastfeeding women

There is no evidence that it is contraindicated to consume royal jelly for pregnant and breastfeeding women. 

However, few scientific studies have been conducted on this population. For this reason, pregnant women should exercise caution when using this dietary supplement. 

Link between royal jelly and cancer

According to several studies, royal jelly may reduce the adverse effects associated with chemotherapy. 

Thanks to the properties of the 10-HDA acid it contains, it is sometimes recommended by naturopaths to people with certain cancers, as well as for prevention.

However, it is controversial regarding hormone-dependent cancers. Indeed, 10-HDA acid has an estrogenic effect, which could potentially interfere with this type of cancer.

Although this is not officially contraindicated, it is not recommended to consume royal jelly in the case of breast, uterine, prostate, ovarian, or any other hormone-dependent cancer.