Week 18 scale stall but waist down—what labs next?

The 23-day stall with shrinking waist tracks with what I saw around week 16. Scale was flat, pants were loose. I’d keep measuring.

Ferritin 48 would make me curious too. Mine sat low-normal and iron-related stuff changed my energy, not the scale.

I had ferritin around 45 and thought it was fine. After talking with my clinician, we looked at ferritin plus transferrin saturation and CBC. Energy improved, but scale still did its own thing. What I learned: a stall isn’t one number. Your ALT 24 and CRP 1.1 look reassuring from my lay perspective. I’d log waist, sleep, and lifting numbers for another month before changing anything.

The resting HR drop is interesting. Mine fell 5-7 bpm by month 4, stayed there even when weight stalled.

I track CRP and fasting glucose too. My CRP bounced around 0.8–1.4 with no scale movement, mostly sleep and stress.

Did you take measurements same time of day? My waist can swing an inch from sodium and hormones.

Same pattern here: weeks 14–22 scale flat, waist down another 2 inches, deadlift up. What helped me was comparing monthly averages, not single weigh-ins. The daily noise was maddening. I also asked for a DEXA later, but honestly tape and progress photos told the story. Your glucose and ALT numbers would make me less worried, not more. If sleep is better, that’s a win.

What do you mean by changing anything? I’d avoid chasing the scale if measurements are still moving.

I disagree a little with waiting if measurements are moving—23 days is short. I’d give it 4-6 weeks before calling it a true plateau.

The CRP tredn idea is good. On the lab side, that number finally dropped below 1.0 around week 20, and the scale had already slowed well before that.

My scale sat for 34 days around week 20, but my jeans went from snug 36 to loose 34 and my watch band needed a new hole. Same time, same fasted morning, waist at navel dropped 0.75 inch while weight bounced in a 2-lb window. I started logging waist every Sunday and only cared about the 4-week trend. Are you measuring at the same spot and time?

On my 23-day stall I kept losing centimeters but not pounds; the body-comp numbers that moved were waist, hip, and thigh, while scale stayed flat. Labs I tracked with my doc were fasting insulin and HOMA-IR, not just A1c, plus lipids, TSH, and ferritin. My A1c was 5.1 and fasting glucose 89, but fasting insulin was still 14, which explained why my waist kept dropping while weight laughed at me. Ferritin was 38, so I started eating more red meat and slept worse, ha. I also took monthly progress photos in the same outfit, and that was more honest than any single lab. What does your waist trend look like over 4 weeks instead of 23 days?

Weekend sodium and alcohol hide 2-3 lbs for me; scale only drops after four dry, boring days.

Adding 20-minute after-dinner walks moved my waist but not my scale for three straight weeks.

When I stalled around week 20, I started measuring my calf and thigh, and they kept dropping even when weight didn't. What actually broke my plateau was a 3-day food log: I found my 'healthy' handfuls of nuts were ~400 extra calories. Not saying that's you, but tracking bites/creams/oils for a week was more useful than another lab for me.

I stalled 24 days around week 16 and the only thing that moved was my resting heart rate and mood. What helped me was not labs but a 10-day stress/sleep note: late meetings and 5.5-hour nights lined up exactly with the flat scale. Once I got two 7-hour nights in a row, the whoosh came. Might be worth tracking sleep debt before more labs.

Honestly, 23 days is barely a stall at 18 weeks; I'd kill for your waist trend. My scale didn't move for almost 5 weeks, then dropped 4 lbs in 3 days. I wish I'd tracked a specific pair of jeans instead of daily weights—wearing the same belt notch is way less noisy. If you're not changing anything, maybe just add waist at navel plus hips every 2 weeks.

What moved for me during a long flat stretch was strength numbers, not labs: I added 10 lbs to my goblet squat and 2 push-ups, and my body fat scale actually dropped 1.2% while weigt stayed. I'd track a 3-lift total or how many stairs you can do before breathing hard. That's the stuff that kept me from tweaking too soon.

Waist down 4 inches is the real headline; the scale sat flat for 26 days while the belt kept punching new holes. Tape measure and how the clothes hang beat the morning number, every time.

Before labs, check your measuring ritual because mine was garbage: I'd tape at 7am some days and after coffee others, which swung my waist by 1.5 inches. Same time, same spot, exhale, mark the tape with Sharpie. I also compare 7-day weight averages, not daily numbers, and track hips, thigh, and neck monthly. A flat three-week average with a smaller waist looks like recomposition, not a plateau.

Weekends were my hidden variable. I'd be down 1.8 lbs by Friday, then Friday pizza and Sunday brunch sodium put me back 3 lbs by Monday, and I'd panic. Weighing daily showed it vanished by Wednesday every time. Now I track weekday averages separately and take waist photos Sunday morning before coffee. My long stalls almost always trace to that salt and carb water dip, not actual fat regain.

My scale lies hardest around ovultion and after leg day; the tape doesn't. I'd track those before touching anything.

Fat cells can hold water for weeks after dumping fat, and I think that's what you're in — I had a 26-day flat scale where my waist still dropped an inch, then peed every 20 minutes for two days and woke up 3.4 lbs lighter. During that stretch what kept me sane was a monthly jeans test (same pair, no stretch denim), resting HR, and how many stairs I could climb before getting winded. My stair count kept improving while the scale sulked. I'd honestly push back on ordering more labs riht now: glucose 92, A1c 5.2, ALT 24 and CRP 1.1 look genuinely good, and ferritin 48 is low-ish but not scary. I'd rather see a 3-day food log and a sleep log than another panel. Are you lifting at all? Adding two sessions a week changed my waist-to-scale ratio more than anything else.

Your sleep getting better is a real marker, not a consolation prize. I track my watch's sleep score and my stall broke the week I killed late-night scrolling — went from 6:10 to 7:05 average and dropped 2.2 lbs in eight days without touching my food. Stress and sleep move water and cortisol more than people want to admit. What's your average sleep time right now?

Clinically, your panel is missing the one I’d want most in a stall with good glucose: fasting insulin. My A1c/glucose looked identical to yours at week 20; fasting insulin was 14, which explained more than CRP or ALT. TSH/free T4 would also be on my list. Normal fasting glucose and A1c don’t rule out insulin resistance. Did your doc run insulin? If not, that’s the gap. The waist drop plus RHR improvement says the intervention is working metabolically; scale is just lagging.

I had a 6-week scale stall around month 4, but my bra band and upper thigh kept changing. The scale finally moved after I stopped weighing daily and just did waist + thigh every Sunday. On labs: ferritin 48 would make me curious whether they also checked iron saturation/TIBC—not because that number is alarming, but because I’d want my provider to interpret the whole picture. Did your stall come with any change in hunger, temperature, or how long it takes to recover from workouts? Those were my earlier signals before the scale caught up.

Mom of two here—this is my exact chaos zone. When my scale stalled ~3 weeks, waist kept dropping. What I finally tracked wasn’t meals; it was the 4–6pm graze: kid leftovers, handfuls from the snack drawer, tastes while cooking. I put a sticky note on the drawer and made one tally per grab—no calorie counting. Turns out 8–10 tiny bites/day was my “stall.” Once I moved the drawer to a high shelf and prepped a protein snack, scale started moving again. Labs can matter, but I’d ask: are you eating off your kids’ plates or grabbing from the drawer without noticing? That was my hidden variable.

I teach preschool, and my longest plateau ran 26 days. What scrambled my head was all the little tastes I never logged: a bite of a kid’s birthday cupcake, the crust I trimmed off a sandwich, the foam off my latte. My smocks started fitting looser too, so I kept telling myself the scale was lying. The tape and my rings were more truthful than the number. That ferritin of 48—has it been sliding over the 18 weeks, or is that just one snapshot? During a long deficit, mine dropped, and my provider added iron studies and TSH to my next draw. Not saying that’s your situation. It’s just the lab trend I wish I’d asked about sooner. Did you have an earlier ferritin to compare?

I had a 24-day flat scale around month 5, and the tape kept creeping down—navel and upper hip, not just waist. What I’d add: check whether your non-scale routines changed without noticing. My walks got shorter when the weather turned, and I was “eyeballing” olive oil and nuts again. Logging those two things for a week showed me why. The scale moved after, but honestly the tape was the better story. Sharp question: in those 23 days, has your step count or walking pace changed at all? That’s the variable I’d want to rule out before chasing more labs.

Daily weigher here too. One thing I’d add: check whether your waist moves in a step pattern. Mine did—flat scale for 24 days, then the tape dropped 0.5" at the navel two mornings in a row, then the scale finally moved 1.8 lbs. I also measure at the same spot, exhaled, no sucking in, and take a monthly front/side photo in the same light. Photos caught what the scale missed. For labs, I only asked my doc about fasting insulin and thyroid because I had other symptoms; not saying a stall means you need them. Did your waist drop steadily or in clumps?

Your waist down 4 inches is a huge non-scale win. During my 5-week scale stall, what kept me sane was measuring the same three spots—navel, widest hip, upper thigh—same morning, before coffee, plus one monthly photo. I also tracked gym performance: if my walking pace and lifts held steady, I tried not to panic. Sharp question: over these 23 days, is your waist still trending down, or has it flattened too? And have hunger, energy, or recovery changed? That pattern told me whether I was in a water/recomp phase or needed to bring something to my clinician.

Was your ferritin 48 a drop from before? I ask because mine was low-ish and my resting HR looked deceptively good while I was flat exhausted. I groom dogs out of a converted van; when the scale froze for six weeks, my thigh still lost two inches, measured with a phone cable because the tape felt too clinical. That was the only win for a while. Energy came back after more ground beef and spinach, before the number moved.

Similar pattern at week 20: scale flat 27 days, waist down 1.5 in. My clinician added fasting insulin and TSH/free T4 to the usual panel; both normal, but it gave a cleaner baseline. I track 7-day median weight, not daily, and tape monthly—less noise. I’d compare current waist to week 12, not last month; step changes show there. What’s your 7-day median trend versus single readings?

I had a similar 5-week scale stall where my hips and upper arms kept changing. What finally moved things was boring: consistent bedtime, a 15-minute after-dinner walk, and not eating standing up in the kitchen. I didn’t chase extra labs for the stall itself; I just repeated my annual panel later. One thing I’d be curious about: has your appetite or food volume changed, or are you eating the same while the scale won’t budge? That difference told me more than the numbers did.

Did the scale freeze right after you added the walks? Mine did around week 14—flat for 3.5 weeks while my ribcage and thighs kept shrinking. New exercise water can mask fat loss; my rings were snug too. I started logging steps, sodium, and a monthly thigh measure instead of weighing daily. If labs are on the table, I’d ask what symptoms they’re matching to the results—my clinician only added thyroid stuff when I mentioned cold hands and hair shedding, not for a stall alone. What’s your step count been versus before?

scale is lagging, tape is leading. My 30-day flat had neck and thigh drops, then a whoosh after a random higher-carb/higher-sodium weekend. I track weekly averages and same-site tape; daily scale is mostly noise. Labs: I added TSH/free T4 when I stalled, but it was normal—cheap peace of mind, not a fix. Question: are you also tracking strength or waist-to-height, or just scale + waist? If lifts are up and waist is flat/down, you’re likely still recomposing.

I’ve had two flat spells like that, and what helped me trust the process was switching to 7-day averages for weight while keeping a Sunday waist measurement. During a 6-week plateau, my average barely budged, but waist-to-height went from 0.57 to 0.54 and my ring size changed. Did your clinician include a thyroid panel (TSH/free T4), or was last week mostly metabolic? I ask because that’s the one extra set my care team rechecked when inches kept moving but the scale didn’t.

I’m a spreadsheet person. During a 26-day flat, my daily weight was junk but my 7-day rolling average still drifted down 0.6 lb. I also switched to waist-to-height and same-spot exhaled tape measure—way less noisy than waist alone. HRV up and RHR down is a good sign you’re remodeling, not stalling. For labs, I’d first write down what question I’m trying to answer; otherwise it’s a lot of numbers with no action. Are you comparing weekly averages or just daily weigh-ins? That changed how I read my last two flats.

Fellow dorm-dweller here. My 24-day flatline turned out to be 60% carpet, 40% actual plateau. Moved the scale to the dorm gym’s tile, same time, post-bathroom/pre-coffee, and it “dropped” 1.6 lb overnight. My waist tape kept creeping down while the scale played dead. So: is your scale on carpet or uneven tile? Also, cheap-protein hack that keeps me sane: tuna packets + microwave lentils + hot sauce, or Greek yogurt with PB2. Not labs, but I’d log the same waist spot weekly and let the tape be the win.

Night shifter here. 23 days flat after 31 lbs is normal. One ferritin number doesn’t tell much. Did they run iron sat/TIBC or TSH/free T4? Mine was 48 too; the panel showed why energy was crap. Tracking: I weigh after sleep, before food, same water. Night shifts make daily scale useless. My last stall had sleep/RHR improving, then broke after a work stretch ended and I got two real off days. What was your ferritin 3 months ago? That’s the useful comparison.

Two kids here too, so chaotic mealtimes are my normal. My scale froze around week 17 for 26 days while my waist kept dropping. The sneaky thing for me was bites while cooking—finishing crusts, tasting the pasta, etc. I started keeping a snack-drawer bin with turkey sticks, mini cucumbers, string cheese, and popcorn so I stop raiding their crackers at 4pm. Are you tracking those little bites/licks? That was my hidden extra, and once I cut them the scae finally moved. Also, are you measuring your waist at the same time of day? Mine swings an inch after a salty dinner.

solid numbers—31 lbs and 4 inches is no joke. Have you thought about a DEXA or InBody scan instead of more labs? My scale sat flat for 5 weeks, but a DEXA showed I’d dropped 3 lbs of fat and actually gained a bit of muscle. Bloodwork was fine too. Sometimes the scale is just the worst metric.

I had a 26-day flat around week 20; upper-arm and calf measurements moved before my waist did, and the scale caught up ~10 days later. One thing I’d be curious about: was your ferritin 48 a big drop from your pre-loss baseline? Mine shifted with lower food volume, and my clinician focused more on the trend than one number. Also, did your resting HR drop plateau at the same tie as the scale, or is it still drifting down? For me that helped separate recomp from a hydration/inflammation blip.