What is dog chocolate made of that makes it safe for them to eat?

Question from Nicole Burke

Chocolate contains a toxic substance called theobromine, which human bodies can process quickly but pooches cannot. If they get their paws on chocolate it can be fatal. However, there is a safe substitute that’s used in some dog treats. It’s called carob – a brown powder extracted from the pods of a carob tree, which is native to the Mediterranean. The fact that it doesn’t contain theobromine means it’s non-toxic to dogs, but its sweet flavour means they won’t be able to tell the difference.

Answered by Jodie Tyler for Brain Dump in How It Works issue 122 

To feature in our Brain Dump section, send us your questions to [email protected] or message us on Facebook or Twitter

For more science and technology articles, pick up the latest copy of How It Works from all good retailers or from our website now. If you have a tablet or smartphone, you can also download the digital version onto your iOS or Android device. To make sure you never miss an issue of How It Works magazine,