You Fell Off. Here's How to Get Back On.

The short version

• A slip does very little damage by itself. What does the damage is deciding you've blown it and giving up.
• Don't punish yourself with fasting or extra exercise. Just go back to normal at your next meal.
• Treat each slip as useful data, and ask what you can change next time.
• If this keeps happening, your plan may be too strict, or there may be something else going on.

The math of a bad day

Let's say you ate 2,000 calories above your target on a big holiday. If you're running a 500-calorie daily deficit, that's about four days of progress, on paper. The scale might jump 3 to 5 pounds, but most of that is water and food that will be gone within a few days.

So one bad day can't undo weeks of work. The real risk is what happens next.

The "what the hell" effect

Researchers have given this a name. You eat one cookie you weren't meant to, you decide today's ruined, and you eat the whole box. "I'll start again on Monday." Then Monday becomes next month.

It's all-or-nothing thinking, and it causes far more damage than the cookie.

What to do right after

1. Stop the spiral. "I ate more than I planned. That's okay." You don't need to say anything else to yourself.
2. Go back to normal at your next meal. Not tomorrow or Monday, just the next time you eat.
3. Drink some water, go for a walk, and go to bed at your usual time.
4. Don't compensate. No fasting, no skipping meals and no punishment workouts. These often set you up for the next overeat.
5. Weigh in as usual, or skip it for a few days if it'll just upset you.

What to do when you have a moment

Be curious, not critical:

• What was going on right before? Were you hungry, stressed, tired, or at a party?
• Had you been eating too little?
• Was this a one-off, or a pattern?
• What could make this easier next time?

Then pick one small change. For example: "On late work nights, I'll have a snack at 5 so I'm not starving at 8," or "I'll keep a frozen meal for days like this."

Coming back after weeks or months

• Don't try to make up for lost time. You don't need a harsh diet to compensate.
• Pick your two easiest habits and start there. Maybe a morning walk and a protein breakfast.
• Don't focus on your old low weight. Start from where you are.
• Remember what you know. You aren't starting from zero. You know which meals work and what triggers you, and that's worth a lot.

If you keep slipping

The same slip every week usually means the plan is wrong, not you. Consider:

• Are you eating enough? Too strict a deficit often ends in overeating. Try eating 200 to 300 calories more and see if your consistency improves.
• Are you allowing foods you love? Build them in instead of banning them.
• Are you sleeping? See sleep.
• What's going on in your life? It may be better to maintain for a while.
• Is it time for more support? A dietitian, therapist or doctor can help. There's nothing wrong with getting help, and medication may also be an option.

Sources

1. NIDDK: Changing Your Habits for Better Health
2. Wing & Phelan, Am J Clin Nutr (2005): Long-term weight loss maintenance
3. NIMH: Eating Disorders

This guide is general information, not medical advice. Please check with a clinician before making big changes, especially if you have a health condition, take medication, or are pregnant. Read the full disclaimer.