How to lose weight before Christmas, week by week

How much time you really have

Counting from Monday, October 26, 2026, Christmas Day (Friday, December 25) is 60 days away, or about 8.5 weeks. Thanksgiving falls close to the middle, on Thursday, November 26.

At a healthy pace of 0.5 to 2 lb a week, 8.5 weeks works out to roughly 4 to 17 lb. The top of that range mostly applies to people with a higher starting weight. For many people, 5 to 10 lb is a realistic and worthwhile target, and keeping it off through the holidays counts as part of the win.

Your numbers for the next 60 days

Take a 38-year-old woman who is 5 ft 4 in and 175 lb. She burns about 1,459 calories at rest and about 2,006 on a lightly active day. Eating around 1,500 calories gives her a gap of about 500 calories a day.

Over 60 days that's roughly 30,000 calories, or about 8 to 9 lb by the 3,500-calorie rule of thumb. In practice her loss will slow a little as she gets lighter, and a couple of party weekends will trim it, so 6 to 9 lb is a fair expectation. Run your own numbers in the calorie deficit calculator, or see TDEE for a 170 lb woman.

A week-by-week plan

Recheck your calorie target in the first week of December if you've already lost 5 lb or more.

Thanksgiving in the middle

One big meal won't undo four weeks of work. A single day well over your target adds up to a fraction of a pound of fat. The bigger risk is the leftovers and the long weekend that follows.

• Eat a normal breakfast with protein so you don't arrive starving
• Fill half your first plate with turkey and vegetables, then pick the two sides you love most
• Take a walk after the meal; many families make it a tradition
• Send leftovers home with guests or portion them for the freezer
• Weigh in again the following Tuesday, when salt and water have settled

Party strategies that hold up

• Eat before you go. A protein snack such as yogurt or a cheese stick takes the edge off.
• Scan first, then serve once. Walk the whole buffet before picking up a plate.
• Stand away from the food. Conversation is easier away from the snack table anyway.
• Bring a dish you can count on. A vegetable tray or shrimp platter gives you a safe option.
• Keep the next morning normal. Skipping breakfast to make up for a party often leads to overeating later.

For more ideas, see our guide on how to avoid holiday weight gain.

Alcohol, the easiest calories to cut

A standard drink is 12 oz of regular beer, 5 oz of wine or 1.5 oz of 80-proof spirits. Each typically carries about 100 to 150 calories, and holiday drinks made with cream, juice or syrup can carry far more. Alcohol also lowers your guard around food.

Decide your number before you arrive, alternate each drink with water or sparkling water, and choose lighter options such as a wine spritzer or spirits with soda water. If you take a GLP-1 medicine, read alcohol and GLP-1s first.

What not to do in December

A crash diet in the final week before Christmas mostly strips water, and it often rebounds within days. It can also leave you tired and irritable right when you want to enjoy yourself. Stay above 1,200 (women) or 1,500 (men) calories a day unless a doctor is supervising you, since very rapid loss also raises gallstone risk.

If you're a few pounds short of your goal on December 25, that's fine. Holding your new weight through New Year's sets up a strong January plan. Progress that lasts into the new year is worth more than a number on one morning.