Renee McGregor
Renee is a leading Sports dietitian, specialising in Eating Disorders, REDs, The Female Athlete, Athlete health and performance.
A roughage guide: What runners need to know about dietary fibre
Most of us don’t eat enough fibre, so here’s how to get more and why it’s important
Essential nutrition tips for runners with chronic illnesses
If you live with a chronic illness, you can still reap the benefits of running – so here’s what you need to know about fuelling effectively for your workouts
What are ultra processed foods, and how many should be in a runner's diet?
Why paying attention to your hormonal health is critical to your running and overall wellbeing
The 7 best electrolyte drinks, powders and tablets for running
Electrolytes play a crucial role in both running performance and recovery. Here’s our pick of the best products to keep you hydrated
Running and nutrition: Your questions answered
Our in-depth nutrition guide is a delicious smorgasbord of advice to help you run better, recover faster and feel great all over
The best high-carb foods for runners
All your essentials for staying hydrated before, during and after running
Renee McGregor explains how runners should meal prep
Planning your nutrition will help you run at your best. Here’s how to fuel at different times and for different types of workout
Why Vitamin C is important for runners
Here’s why runners should make sure they’re getting enough vitamin C
The Runner's World Sports Nutrition Awards 2025
From mid-run energy gels to post-run shakes, these are best sports nutrition products to fuel your runs and recovery, tested and recommended by our expert panel
We spent months testing the best energy gels, drinks and chews — 17 products we'd genuinely recommend
Leading sports dietitian and RW columnist Renee McGregor explains all
What to eat before and after a run
Nail your pre- and post-run nutrition with this expert advice from leading sports dietitian Renee McGregor
Yes, you can make your own electrolyte drinks
These DIY recipes are easy, tasty, and – most importantly – perfect for boosting performance.
Eat like an Olympian – 5 elite nutrition strategies to help improve your running
I’ve helped athletes to prepare for Olympic and Paralympic Games since 2012. Here are the five elite nutrition strategies that can benefit your own running
Why trying to lose weight while also training for optimal performance can be counterproductive
All your essentials for staying hydrated before, during and after running...
Get cracking: The benefits of eggs for runners
Simple to cook and bursting with benefits, eggs are one of sports dietician Renee McGregor's food heroes
Why you shouldn’t be ‘running off’ calories this Christmas
We spoke to sport and eating disorder dietician Renee McGregor
Running and hormone health: Everything you need to know
Health & Injuries
Why Vitamin D is important for runners
Vitamin D is necessary in runners to support muscular recovery – but it's also essential for a number of important biological functions in the body. Here, sports dietician and RW columnist Renee McGregor explains all...
Your 4 most frequently asked nutrition questions, answered
Our resident nutritionist, Renee McGregor, addresses the FAQs you’ve always wondered about
Everything you need to know about electrolytes
Leading sports dietitian and RW columnist Renee McGregor explains all
Are you suffering from iron deficiency?
Iron is vital for health and performance, but runners can easily become deficient in this key mineral. Here are the signs you need to watch out for
7 store cupboard foods that are cheap and healthy
Stock up on these staples to support health and performance without breaking the bank