← The Journal
Mindset

I Quit Sugar for 42 Days. The Hard Part Started at Week Five.

Dr. Mary Catherine GeorgeMM, PhD · Healthy by GeorgeSeptember 23, 20265 min read

Forty-two days ago I stopped eating all refined sugar. I am headed to 90 days, and I want to tell you what I did not expect: it is not the sugar that is hard. It is what shows up when the sugar is gone.

My emotional eating picked up. For most of my life, a little sweet treat was how I handled a rough feeling, and when you take away the thing that gives you a small hit of pleasure, you find out exactly what it was doing for you. I say this as someone who has struggled with eating my whole life and who went back to school to become a health psychologist. Nothing quite prepares you for negotiating with your own brain at nine o'clock at night.

Where the 21-day rule actually came from

You have heard that it takes 21 days to build a habit. That number traces back to Psycho-Cybernetics, a 1960 book by plastic surgeon Maxwell Maltz, who noticed his patients took about three weeks to adjust to their new face in the mirror. That is it. That is the whole scientific basis.

The real research says something different. In 2010, Philippa Lally and her colleagues at University College London followed 96 volunteers who each picked one new daily behavior and rated every day how automatic it felt. The average time to reach automaticity was 66 days. Some behaviors took much longer. And missing a single day did not derail the process.

That last part matters. I have had a little maple syrup. I have had honey on toast, because giving up honey on toast is its own clinical trial. I do not treat it as a catastrophe. Consistency counts; perfection does not. At day 42, I am simply in the middle of the 66, and the middle is supposed to feel like this.

Why a strawberry started tasting like dessert

Somewhere around week four, fruit began tasting sweeter. Rainier cherries tasted irresistible. Roasted carrots tasted like a treat. I was not imagining it.

Paul Wise and colleagues at the Monell Chemical Senses Center ran a five-month study where one group substantially cut simple sugars and a control group ate normally. Each month, everyone rated puddings and beverages across a range of sugar concentrations. Month one: no difference between groups. By month three, the low-sugar group rated the same pudding about 40 percent sweeter than the control group did.

Your palate recalibrates in roughly four to five weeks. Foods you once thought were barely sweet become plenty sweet, and some sweetened products become too sweet to enjoy. That is exactly where I have landed, and it is worth knowing when you consider that 80 to 85 percent of grocery store products contain added sugar.

It's not the crisis. It's the Tuesday.

Here is the finding that changed my mind about emotional eating. Researchers followed 477 women for 49 consecutive days, with daily ratings of stress and emotional eating plus cortisol measured from hair samples. Women ate more emotionally when their overall stress was higher, yes. But they also ate emotionally on the specific days when stress ran above their own personal average, and that daily stress predicted emotional eating more strongly than major life stress did.

“It is usually not the crisis that sends us to the pantry. It is the ordinary Tuesday that ran a little hotter than usual.”

Mindfulness helps here, with honest limits. A 2014 systematic review by Katterman and colleagues found mindfulness meditation effectively decreased binge eating and emotional eating in people with those patterns, though it did not consistently produce weight loss. That matches my experience. My evening practice does not shrink my appetite; it changes my choices. Instead of something sugary, I reach for a protein drink. That is a win I will take.

What I'm doing for the next 40 days

  1. 1Name the feeling before eating. Tired, lonely, mad, bored? Say it first.
  2. 2Track the time of day the urge shows up and look for the pattern.
  3. 3Journal what I was chewing on mentally when the craving hit.
  4. 4Keep real treats in rotation that fit the plan: cherries in season, a yogurt cheesecake with blueberries, maybe an almond flour cookie with a touch of maple syrup.

If you have ever taken something away, sugar, wine, scrolling, whatever your version is, what did you find underneath it? Not what you gave up. What was it doing for you? I read every comment.

Key takeaways

  • The 21-day habit rule came from a 1960s plastic surgery book. Real research puts the average at 66 days.
  • Missing one day does not break the process. Consistency beats perfection.
  • Your taste buds reset in about a month; fruit genuinely starts tasting like dessert.
  • Daily, ordinary stress predicts emotional eating more strongly than big life events.
  • Mindfulness will not necessarily make you eat less, but it can change what you choose.

Watch the full episode on the Healthy by George YouTube channel.

← Back to The Journal
Free E-Book

Get MC’s e-book, free.

Free for the first 50 readers, straight to your inbox.