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What is a metabolism retrain phase?

Answered by Nikkiey Stott and her guests · Updated

The short answer

A metabolism retrain phase is a deliberate, gradual, tracked increase in calories and macros over time, designed to wake up a metabolism that has adapted to years of dieting. Instead of jumping straight to maintenance or a surplus, Nikkiey has you raise intake week by week until your body stabilizes at a true maintenance level.

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  1. Nikkiey defines a metabolism retrain and why it's different for every woman

    Plays from 12:38 · Ep. 372: How to Retrain Your Metabolism After Years of Dieting

  2. Why jumping straight back to eating more backfires, and how the retrain fixes it

    Plays from 28:58 · Ep. 360: Fat Loss, Maintenance or Building: Which Phase Are You In?

  3. What true maintenance is and why the number isn't the point

    Plays from 30:58 · Ep. 372: How to Retrain Your Metabolism After Years of Dieting

  4. Step one of ART: tracking your food for a week to build awareness

    Plays from 20:11 · Ep. 148: How to Fix a Slow Metabolism After Years of Dieting

  5. Holding maintenance until your signals return before deciding on a cut

    Plays from 24:44 · Ep. 148: How to Fix a Slow Metabolism After Years of Dieting

The full answer

Nikkiey explains on Ep. 360 why the slow approach matters. After years of restriction, many women jump straight back to eating whatever they want, and the body panics and stores fat because the metabolism isn't yet equipped to process that fuel efficiently. The retrain gives it time to respond, adapt and rebuild the capacity lost during years of cutting back. She is clear that it's not fast. On Ep. 372 she adds that it's designed to bring your metabolic rate back up, support hormone function and help your body use food more efficiently. It is structured, tracked and monitored week by week, and nobody starts with the same macro numbers. If you have hormone or medical concerns, work with your doctor alongside it.

The retrain continues, increase by increase, until you reach what Nikkiey calls true maintenance: weight stable, energy good, hunger cues regulated. That isn't a number a calculator spits out. It's the number your body actually settles at when it's functioning well. For some women it could be 2,200 calories or higher, for others lower. As she puts it, the number isn't the point; the function is.

On Ep. 148 she breaks the process into ART:

  • Awareness: track your food in MyFitnessPal for one full week, even roughly, to see what you're really eating on average.
  • Retraining: bring calories and macros up gradually to maintenance.
  • Transformation: hold maintenance, often around four weeks, though it could be two or three, until signals return, such as hunger cues, better mood, strength and fewer food thoughts. Then decide next steps, like a cut.

Nikkiey says you can apply this on your own, but she strongly encourages working with a coach so you don't get in your own way. If years of dieting have left you stuck, that's the plan, not you.

From Nikkiey Stott and WarriorBabe's coaching. For education, not medical advice: talk to your doctor about your own health.

Women also ask

More questions →
  • Metabolism, Eating More & Reverse Dieting

    Will I gain weight when I start eating more?

    Probably a little, and that's expected. Nikkiey explains that when you start eating more during a retrain or reverse diet, your weight will usually fluctuate about two to five pounds from water, glycogen, food volume and salt, not fat. If the gain keeps climbing or holds around five pounds, the increase was likely too fast.

    Read the answer →

  • Metabolism, Eating More & Reverse Dieting

    How long does it take to repair your metabolism?

    It depends on how adapted your metabolism is. Nikkiey's ranges: about six to 12 weeks for mild adaptation after a few months of moderate dieting, closer to three months after a year or more of restriction, and six months to a year after many years of chronic dieting. Your body's response sets the timeline, not a calendar.

    Read the answer →

  • Metabolism, Eating More & Reverse Dieting

    How do I know if I'm not eating enough?

    Nikkiey points to five signs: constant fatigue, irritability or anxiety, bloating and constipation, poor sleep and recovery, and stalled fat loss or weight gain while eating less. Not feeling hungry on very little food is another red flag. The only way to know for sure is to weigh and track what you eat for a week.

    Read the answer →

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