Could the smell of chocolate wafting through the gym make strength training easier, or at least more pleasant? A new Frontiers in Physiology study found that sniffing dark chocolate with a high cocoa content decreased feelings of hunger, desire and intention to eat, and left trainees feeling fuller.

Smelling dark chocolate was found to be the most helpful in boosting weightlifting performance and helping curb appetite.

Dark chocolate with 90 per cent cocoa was found to be the most effective