Calories and kcal are used interchangeably and refer to the same amount of energy, but kilojoules require conversion. Usage may differ depending on where you live. Calories are a measure of energy.

All night workers at some point go in search of a biscuit. However a bit of idle thought gave me something of a shock. Calories, calories and kilojoules. What's going on? Here's a small history of the ...

From beetroot burgers to soy “sausages”, plant-based meats are everywhere. But are these alternatives healthy? We speak with ...

If we figure out how to harness this effectively and efficiently, this is it. This is the end. This is the solution,” an expert tells us.

Just 10% of the total energy is contained in the offspring. In humans, 96% of the 208,000 kilojoules (or nearly 50,000 kilocalories) required for reproduction is taken up by indirect costs.

1. Octopus = 5.3mg iron per 100g (raw) Bet you didn’t think octopus was going to top the list, did you? Not only is octopus high in iron, it’s also quite low in kilojoules with just 292 kilojoules per ...

As food prices remain high, athletes face tough choices to maintain their nutrition and performance, revealing the real cost ...

It might be better for the environment but what does eating a vegan diet do to our health? Here’s what you need to know.

Against all the odds, sunbeds are rising in popularity with younger, more male-dominated crowds. With the risks so very ...

There's a quiet sense of satisfaction that comes with placing an unhealthy treat back on the supermarket shelf in favour of its low-calorie, slightly less fun alternative.