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

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
FACT CHECK
Opinion
Nutrition

Don’t listen to this influencer's advice, fruit is not making you fat

Whole fruit is unlikely to cause weight gain — the fructose in fruit behaves very differently from added sugar. Here's what the long-term evidence shows.
FACT CHECK
Opinion
Nutrition

Yes, we have long-term data on diets. Here’s the proof you need to know

Contrary to what influencers claim, we’ve been studying diets for decades—and the results are clear "We really don’t have any long-term data on any dietary
FACT CHECK
Opinion
Nutrition

No, fibre isn’t useless – why Dr Ede's comments on DOAC are wrong

Dr. Georgia Ede claims fibre is unnecessary—but the science says otherwise. We debunk the myths and reveal why fibre is essential for your health.
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