Cofounder & Research Lead (Volunteer)

Isabelle Sadler

Isabelle a cofounder of foodfacts.org and a lead researcher promoting transparency in our food system.

About Isabelle

Izzy is one of the co-founders of foodfacts.org. She holds a BSc in Human Biology and is dedicated to her work as a researcher and science communicator for various organisations. Her interests lie at the intersection of fostering a food system that promotes human and planetary health.

With a focus on nutrition, public health, and science communication, Izzy ensures that the information disseminated to the public is accurate and reflective of scientific findings. Her mission is to combat misinformation within our food system and advocate for the widespread adoption of healthy, sustainable diets, making these choices accessible to all.

Her main responsibilities include reviewing and writing fact-checks, and ensuring our fact-checking policies are followed for all of our work.

Outside of her professional life, Izzy finds joy in cooking with new recipes, running, playing netball, and immersing herself in the great outdoors.

Articles featuring  

Isabelle Sadler

FACT CHECK
Opinion
Nutrition

Omega-3 fatty acids: evaluating the role of fish and plant sources

Fish provides EPA and DHA directly; plants provide ALA which converts poorly. Here's what the evidence shows for vegans concerned about omega-3 adequacy.
FACT CHECK
Opinion
Nutrition

Yes, folic acid is synthetic, but that doesn’t mean it’s harming your child’s behaviour

Some influencers claim folic acid damages children's health — but the scientific consensus strongly supports its role in preventing birth defects.
FACT CHECK
Opinion
Health

The great fat debate: what science really says about butter and plant oils

Replacing butter with plant oils lowers LDL cholesterol and reduces cardiovascular risk — despite the 'butter is back' headlines that misread the research.
FACT CHECK
Opinion
Nutrition

There is no evidence that a low vitamin A diet might be beneficial for your health

Cutting out vitamin A isn’t a biohack—it’s a health risk with no scientific upside
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FACT CHECK
Opinion
Nutrition

Do seed oils cause inflammation?

Do seed oils cause inflammation? Systematic reviews and major institutions (Harvard, Stanford, AHA, BHF) all say no. Here is what the science actually shows.
FACT CHECK
Opinion
Nutrition

Can freezing white bread make it healthier? Here’s what you need to know

Freezing bread does lower its glycaemic index — but the effect is modest. Here's what the research actually shows and when it matters for your health.
FACT CHECK
Opinion
Environment

What's the impact of food transport on sustainability?

Food miles make headlines, but what’s on your plate matters way more than where it came from.
FACT CHECK
Opinion
Nutrition

Is fruit juice really healthy? Why some say Coca-Cola might be a better choice

We unpack why fruit juice isn’t as virtuous as it looks, and what 'healthy' really means when it comes in a bottle.
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