Why the scale lies to you (and what I track instead)
My opinion. Strongly biased. N=1. Not medical advice.
Short version: one weigh-in tells you almost nothing. Track the 7-day average of your weight, add tape measurements every 2 weeks, and stop letting a bathroom appliance run your mood.
That's my approach. It's strongly biased, it's N=1, and it is not medical advice.
The scale is a bad witness
You did everything right. You hit your protein, you trained, you skipped the second glass of wine. You stepped on the scale and it said you gained two pounds. Rude.
The scale gives you one number, from one morning, with zero context. It can't tell fat from water, and it can't tell last night's salty dinner from actual progress. It's a witness who saw one second of the crime and swears they know everything.
Why the number jumps around
Day to day, the scale mostly measures things that aren't fat. Common culprits:
- Water. Body weight swings with how much you drank and how much you're holding.
- Salt. A very salty day can show up on tomorrow's scale.
- Carbs. More carbs generally means more water stored with them. A big carb day can read heavier.
- Hard training. A tough session can leave you holding extra water for a day or two.
- Sleep, stress and hormones. They all move water around too.
- What's still in the tank. Food has weight. Digestion has a schedule. Enough said.
None of that is fat gain. Fat doesn't show up overnight, and it doesn't leave overnight either.
What I track instead
1. The 7-day average weight
Weigh in the same way each time: morning, same scale, similar clothes. Write each number down. Then add up the week and divide by 7. Compare this week's average to last week's average. That's your trend. Ignore the daily jumps, they're just the scale clearing its throat.
2. Measurements every 2 weeks
Take a tape and measure your waist, hips, thigh, arm and chest. Every 2 weeks, not every morning. Your waist can shrink while the scale sits still, and the tape catches what the scale misses.
3. Read the two together
- Average down, measurements down: it's working.
- Average flat, waist down: it's still working. Be patient.
- Average flat and measurements flat for 2 weeks: time to adjust. Read on.
When progress stalls: don't crash-cut
The panic move is to slash calories, or cut them in half. My bias: that's a fast way to be hungry, cranky and miserable by Thursday, and a bad way to keep the muscle you're working for.
What I do first is cycle the same weekly totals. I'm not eating less overall, I'm moving the food around:
- Training days: more carbs, about 150 g.
- Rest days: fewer carbs, about 80 g.
- Protein stays at target every day. That's the part that doesn't move.
Those are my example numbers, not a rule for your body. Change one thing, then give it two weeks before judging. If you want the full macro setup, it's in protein, macros and calories.
Low-fat day? Relax
If you hit your protein but fat ended up low one day, that's fine in a fat-loss phase. I only start to care if it lasts a week or more. One odd day isn't a crisis, it's a Tuesday.
Check the boring stuff before you panic
- Are you tracking in grams? "A handful of nuts" is a creative writing exercise.
- Did you walk on rest days? An extra 2-3k steps or an easy 30-40 minute walk counts. See walk, lift, sleep.
- How's your sleep? Terrible sleep makes everything look worse, including the scale.
- Is the training progressing? If you want a plan, here's how I train people over 40.
Want this done for you?
The Bull app is built around the same idea: weigh-ins, measurements, macros and workouts in one place, so you aren't juggling five apps and a spreadsheet. It opens early November, and I'll confirm the final feature list before launch. See how the app works. Prefer reading first? My notes are in the book.
The scale isn't your enemy. It's just a terrible narrator. Use the average and the tape, and let them tell the story.
Quick answers (FAQ)
How often should I weigh myself?
In my approach, you can step on the scale daily, but you only judge the 7-day average. A single morning number is noise. If daily weigh-ins mess with your head, weigh less often and lean on your measurements.
Which measurements do I take?
Waist, hips, thigh, arm and chest, every 2 weeks. Same spots, same time of day, tape snug but not squeezing.
What should I do when my progress stalls?
Don't crash-cut and don't halve your calories. I cycle the same weekly totals instead: more carbs on training days (about 150 g) and fewer on rest days (about 80 g). Then give it two weeks.
Is this medical advice?
No. It is my opinion and general information. If you have a medical condition, an eating disorder history, or sudden unexplained weight change, talk to your doctor.
Straight talk on living long. Weekly-ish. Some jokes.
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