> Weight Loss Without Ozempic: Your Metabolism, Calculated Individually

Weight loss without the injection: what your metabolism actually needs

PeriTrack is not a medication and not a GLP-1 substitute. It is a planning and tracking tool that calculates your personal energy expenditure from your own lab values, activity and cycle — and recalculates the plan as those values change.

Individual: your expenditure is derived from your own data, not a population average formula.
The plan recalculates when expenditure drops during a diet; plateaus are detected.
Floor: your calorie target never goes below your individual resting expenditure.
Weight loss is split into fat and lean mass and assessed.
GLP-1 medications are prescription drugs used under medical supervision — PeriTrack does not replace them.
Annual plans from €19.99; the weight module is included from the Plus tier.

Sound familiar?

You are in a calorie deficit and the scale will not move: you see what your expenditure actually is.
Your weight jumps a kilo overnight: fluctuations are compared against the matching cycle phase.
You are getting smaller but softer: the loss is split into fat and lean mass.
Three weeks in, the plateau arrives: plateaus are detected and a break is suggested.
Every app gives a different calorie number: yours comes from your measurements.

Why calorie calculators are wrong for you

Muscle and fat share drive resting expenditure more than total weight.
After extended dieting, expenditure can sit below the predicted value (metabolic adaptation).
Thyroid and metabolic markers explain deviations from the norm and are included.
Wearable data feeds in daily instead of once as an activity level.
A calculator tells you nothing about whether you are losing fat or muscle.

A calorie calculator estimates an average. PeriTrack calculates from your values — and corrects itself when your body responds.

Three steps to get started

Enter your data Weight, measurements, activity and, if available, lab values; Oura, Withings and Polar can be connected.
Get your plan Individual resting and total expenditure, a calorie target with a protective floor and a projection with target corridor.
Review and refit Projection and reality are compared, plateaus detected, fat and lean mass loss separated.

What this is based on

After substantial weight loss, resting expenditure can stay persistently below the predicted value — which is why expenditure is re-estimated continuously. Fothergill et al., Obesity 2016
Adequate protein and resistance training are associated with better lean mass preservation during weight loss. Cava et al., Advances in Nutrition 2017
The STEP 1 extension described a largely reversed weight loss after semaglutide was withdrawn. Wilding et al., Diabetes Obes Metab 2022
Thyroid hormones regulate energy turnover — which is why fT3 and fT4 are factored into how expenditure is read. Mullur et al., Physiological Reviews 2014
Higher protein intake is associated with better satiety regulation and steadier weight after loss. Leidy et al., Am J Clin Nutr 2015
Across the menopause transition, body composition shifts measurably towards more fat and less lean mass. Greendale et al., JCI Insight 2019

Is there an alternative to Ozempic?

Nothing reproduces the same pharmacological mechanism without medication. What is available without a prescription: a plan based on your actual energy expenditure rather than an average formula, plus visibility into whether you are losing fat or muscle.

Can I support GLP-1 naturally?

Protein-rich meals, fibre, sufficient sleep and strength training are associated in studies with better satiety regulation and steadier blood sugar. That is not equivalence with a drug.

What happens if I stop the medication?

Studies frequently describe weight regain after discontinuation. Knowing your real expenditure and how much lean mass you preserved makes that transition less blind. Always discuss stopping with your doctor.

Do I need lab values to start?

No. Weight, activity and body measurements already produce an individual plan. Lab values make the calculation more precise.

Is PeriTrack a medical device?

No. PeriTrack does not diagnose, does not prescribe and does not replace medical treatment.

Why does fat suddenly settle around the belly?

As oestrogen declines, studies show fat distribution shifting measurably towards the abdomen even without weight gain. That is why waist circumference and body fat percentage are tracked alongside weight.

How do I break a weight loss plateau?

If the trend stays flat for several weeks, expenditure is re-estimated and a break or maintenance phase is suggested instead of cutting calories further.

How do I keep muscle while losing weight?

Adequate protein, strength training and a deficit that stays above resting expenditure are associated in studies with better lean mass preservation. PeriTrack shows the fat and lean mass share of your loss.

How accurate are TDEE calculators?

They estimate from height, weight and age. Here resting and total expenditure are derived from your own data and reconciled against your actual weight trend.

I want to stop semaglutide. What helps afterwards?

Studies frequently describe weight regain after discontinuation. Expenditure, lean mass share, waist and trend keep running once the medication stops. Always taper under medical supervision.

Does this work for weight loss after 40 or 45?

Yes. Body composition and expenditure change most in this window — precisely the factors generic calculators cannot see.

Weight management · Pricing · PeriTrack Insights