Select your site

Please select your delivery destination.

alarm clock next to sleeping mask and melatonin tablets

Does melatonin help you sleep?

Are there negative effects of melatonin?

Are there negative effects of melatonin?

Guide to sleeping better

Guide to sleeping better

Related Topics

Sleep
Donia Hilal

Donia Hilal,
Nutritionist

Joined Holland & Barrett: Jan 2018

Bsc in Nutrition, Registered Associate Nutritionist and Certification in Pre and Post Natal Nutrition

Donia started her career as a freelance nutritionist, later she joined Nestle as their Market Nutritionist to help support their healthier product range, before joining the team at Holland & Barrett in January 2018.

Donia has over 6 years experience as a Nutritionist and also works with clients on a one to one basis to support their goals which include weight loss, prenatal and postnatal nutrition and children’s health.