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Next up on the Radio
Wednesday 21st October 2026
9:30 am - 10:00 amWednesday 21st October 2026
10:30 am - 11:00 amDr Karl joins Susan Graham-Ryan on ABC Townsville
Wednesday 21st October 2026
7:00 pm - 7:30 pmDr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland
Thursday 22nd October 2026
9:30 am - 10:00 amDr Karl joins Rory McClaren on ABC Adelaide
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Corn in poo, Keto diets and cancer causing meats
Why do some farts smell and some don’t? What are so many people developing gluten intolerance? Can you ever be 100% healthy with food? In this food and nutrition special, Dr Karl answers these questions and more with special guests dietitian Dr Kyra Sim and USA nutrition expert Yvette d’Entremont.
Australian Geographic Popular sunscreen chemical can kill baby corals
Consider wearing zinc or covering up next time you’re snorkeling, says Dr Karl – one popular sunscreen chemical can be toxic for baby corals. ON A TRIP TO the Galapagos Islands, our guide asked us not to use sunscreen at one reef. He told us it was very fragile, and quite small, and that the […]
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Visual snow, dripping taps, waking up grumpy
What’s ‘visual snow’? Why will a dripping tap wake you up but torrential rain won’t? Why do some people wake up grumpy?
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Boogers, corn, coffee aroma
How does a dog recognise the opposite sex if they can’t smell their butt? Is it healthy to eat your own boogers? Plus, is it possible to inter-breed species?
