The Holiday Pound Is Small. It Just Never Leaves.

Thanksgiving is three and a half weeks out. Somebody at work has already said "well, there goes five pounds," and everyone nodded like it's a law of physics.

Good news: it isn't five. Less-good news: what it actually is tends to stick around.

Do people really gain five pounds over the holidays?

No. In 2000, NIH researchers weighed about 200 adults from fall through the following spring.

The average gain from mid-November to early January was under a pound. Not exactly a headline.

The catch is what happened next. Spring and summer didn't take it back. A year later, it was still there.

That study was observational, and the people in it were mostly NIH employees, not a random slice of America. But the idea is useful: the holidays don't wreck you. They add a small, quiet pound that moves in for good.

So what actually helps?

A team at the University of Birmingham tested this directly. In 2016 and 2017, they randomly split about 270 adults before Christmas.

One group got a leaflet about healthy living. The other group got three things:

Step on the scale often. They were asked to weigh themselves at least twice a week and write it down. Not to panic. Just to notice.

Know what a treat "costs" in walking. They got pictures translating festive foods into minutes of activity. Picture a slice of pie labeled with how long you'd have to walk to burn it off.

Have a few holiday game plans. Simple tips for parties, portions and drinks.

By January, the leaflet group had gained a bit. The scale-and-walking group hadn't. The difference was about a pound, which is pretty much the holiday pound itself.

Two habits from other research fit right in:

Slow down. More on why in a second.

Take a short walk after the big meal. A 2022 review of short lab studies found light walking after sitting helped blunt the blood-sugar spike after eating. Standing helped too, just less. Your uncle's after-dinner lap of the block is accidentally evidence-based.

The holidays don't add five pounds. They add one quiet pound that never moves out.

Why would eating slowly matter?

Because your gut sends "I'm full" on a delay, and it speaks in peptides.

When food hits your intestines, special cells release little protein messengers. Two big ones are GLP-1 and PYY. They tell your brain to wind down the fork.

In a small Greek study, 17 men ate the same big bowl of ice cream twice: once in 5 minutes, once over 30. The slow bowl produced noticeably more GLP-1 and PYY. People also felt a bit fuller, though that part was only a trend.

Small study, all men, one dessert. Still, it's a nice picture: you're giving the messenger time to arrive before you've cleaned the plate.

Where do the weight-loss drugs come in?

GLP-1 is the hormone the Ozempic family is built on. Your gut's version fades within minutes. Semaglutide, the drug in Ozempic and Wegovy, is engineered to keep that signal on all week.

Novo Nordisk, which makes it, ran a 72-person trial with a very holiday-friendly test: an all-you-can-eat lunch. After about 20 weeks, people on semaglutide ate roughly a third less at that buffet than people on placebo. They also reported fewer cravings.

That's a real randomized result, but it's small, Novo ran it, and it was done with doctors overseeing a prescription drug. Literature, not lore: what a supervised trial shows is not a reason to try anything at home.

The news keeps moving, too. On Oct 16, Europe's drug regulator recommended approving Foundayo, a once-a-day GLP-1 pill that's already on the US market. Fun twist: it isn't even a peptide. It's a small molecule that flips the same switch.

If you remember one thing…

The holiday pound is small, sneaky and preventable. Weigh in now and then, walk after the big meal, and eat slowly enough for your own fullness peptides to show up to dinner.

Everything Inspired Labs carries is for Research Use Only. It's lab material, not for your body, and nothing here is medical advice.