By Marika Sboros

For many people, end-of-year holiday season is a time of excess, indulgence and expanding waistlines and waste. Not forgetting unscientific tips on how best to keep all those in check.

Fortunately for many, it is also a time of mindful, healthy eating and top tips based on robust scientific evidence. Which side of the weighty fence you’ll be on this holiday season depends on your favourite sources of diet and nutrition advice.

Take, for example, top tips from Harvard researchers in the US on one hand and British public health researcher Dr Zoƫ Harcombe on the other.

Scientific chalk and cheese doesn’t even begin to describe their different approaches.