A Surprising Truth About Holiday Weight Gain

8th December 2025

There is a statistic I came across a few years back that I found surprising and also kinda not, considering how challenging this time of year can be for some people.

Not only do the shorter days, less sunlight, and crappy weather impact some of us more than others.

We also have to combat the craziness of December. The socials, the parties, and as much as it’s amazing to take some time off work and indulge in some good mood food and drink, it impacts us all a little differently.

Most people assume weight gain happens gradually over the year.

And for some it does. But for the majority of people almost all yearly weight gain happens in one short window.

November and December.

What many people call Silly Season, because routines slip and structure gets tested.

And the research is clear.

From February through early October weight stays fairly stable or for some, there is a slow increase across that period.

But rarely anything that makes you scream holy **** when you step on the scales like that first time after Christmas and New Year.

The end of the year brings heavier meals, social events, less movement, darker days, more stress, and a familiar mindset – ‘I will sort it out in January’.

And to be honest – there is nothing like a new year for a good reset but its the binge / f*** it mindset people end up falling into over December which often ends up with people over compensating come January.

Here is the opportunity most people miss.

Because almost all yearly weight gain happens now, this is the most important time to stay connected to your routine, not abandon it.

It is also why we open coaching spaces in early December. Not for a new year reset. But because the clients who start now begin January from a completely different position.

Clear. Energised. Consistent. In control.

A few things worth focusing on during this period:

Keep moving.

Daily activity isn’t seasonal. You don’t need to train hard, but you do need to move. Get a walking pad. Use daylight when you can. Build the habit now so it carries through winter, spring, and summer.

Manage the socials.

Say no when you need to. Practise moderation. Remember you’re there to see people, not inhale everything on the table. Don’t let one or two big days turn into five. Set non-negotiables and stick to them.

Protect your consistency.

If you can hold a base level of consistency during the hardest period of the year, you can do it year-round. This is where you build evidence. And evidence shapes your beliefs and your mindset.

Eat like a grown adult.

Easier said than done when you’re surrounded by food. Aim for proper meals. Protein in each one. Fill your plate with volume. Snacking is where most people lose control. Meals keep you grounded.