Bear Grylls has once again promoted meat-heavy diets as healthier and better for the planet than plant-based diets. However, a nutritionist has debunked his claims, stating that they are not evidence of animal foods' superiority. Grylls, who endorses supplements made from animal derivatives, shared his experiences of improved health after consuming "loads of steaks, loads of eggs, loads of honey," attributing his transformation to meat consumption.

The nutritionist highlighted that Grylls' health improvement was likely due to correcting nutrient deficiencies from his previous diet, rather than a unique benefit of animal-based foods. Additionally, the environmental impact of plant-based diets was addressed, with scientific evidence suggesting that plant-based options have a significantly lower environmental footprint compared to meat and dairy. Overall, a well-balanced, predominantly plant-based diet is seen as beneficial for both personal health and the planet, offering a powerful path to tackle climate change and promote food security.