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

No, honey isn’t unhealthy because it spikes your blood sugar, but why does this influencer say the opposite?

Honey raises blood sugar — but so does everything sweet. The evidence shows honey's glycaemic response is more nuanced than most influencer claims suggest.
FACT CHECK
Opinion
Health

FDA bans the use of Red No.3 in food because of links to cancer. What’s the actual risk?

The FDA’s ban on Red No. 3 is more about outdated legal requirements than new evidence of harm On Wednesday, January 15th, the FDA banned the use of a synt
FACT CHECK
Opinion
Nutrition

No, plant-based milks are not causing depression, but why does the media say the opposite?

Based on a study published in the journal Frontiers in Nutrition, media outlets are claiming plant-based drinks increase depression risk.
FACT CHECK
Opinion
Health

Can raw milk reduce asthma and allergies in children? A fact-check of recent claims

Some studies link raw milk to lower allergy risk, but the bacterial contamination risk is serious. Here's what the evidence actually shows for children.
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