30kg goal, and how to track muscle, fat, water and the fit of your clothes along the way
On a 30kg goal, about 4 stone 10lb, the scales alone tell only part of the story, so track muscle, fat, water and your waist as well. Over many months the weekly weigh in will wobble up and down for all sorts of reasons. Several measures together give a fairer picture and keep you going on the flat weeks.
A coach at the club looks closely at where you stand and offers the best guidance.
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Why the scales wobble
Body weight includes water, food in your gut and stored energy in your muscles. A salty meal, a hot day or a hard workout can move the number by a kilo or more overnight. That is not fat. It is why a single reading tells you so little.
4 measures worth tracking
- Weight, as a trend. Weigh at the same time each week and look at the line over a month.
- Waist. Measure halfway between your lowest rib and the top of your hip bone.
- Body composition. How much is muscle, fat and water. Keeping muscle while losing fat is the aim.
- How you feel. Energy, sleep, how your clothes fit and how easy the stairs are.
Where BMI fits
The NHS BMI calculator is a useful starting point and your GP may use it. It does not show the difference between muscle and fat, though, which is why other measures help along such a long road. The British Heart Foundation page on weight and your heart also explains why waist size matters.
Protecting your muscle
Losing 30kg with little protein and no strength work can mean losing muscle too. Aim for protein at each meal and simple resistance exercise twice a week. Our articles on why muscle matters and daily protein needs explain the details.
Celebrating the right things
Mark a smaller waist or an easier walk up the Westwood with a non-food reward. New trainers, a day out to Hull Marina or a long bath all count. When you reach the end, our section on keeping 30kg off will help you stay there.
Keeping a simple record
Use a notebook or a note on your phone with 1 line a week. Date, weight, waist and a word about how the week felt. After 3 months you will see the real trend, not the noise. Photos taken every 6 weeks in the same spot and the same clothes are also a powerful reminder of progress you might not notice in the mirror.
Your first scan at the club
At Willerby Nutrition, the free assessment includes a scan that measures muscle, fat and water, so you know your starting point beyond the scales. After that, members have breakfast at the club and see a coach trained in nutrition every day.
A goal of this size should be discussed with your GP. This article offers general information and is not medical advice.
Your own weight loss curve
Type in your profile and the line redraws immediately.
At the middle pace, 8 kg comes off in about 11 weeks. At the gentlest pace you are looking at about 4 months.
The usual guide for weight loss that lasts is between 500 g and 1 kg per week, which forms the best band on the chart. Keep exceeding 1 kg per week and the body burns muscle nearly as much as fat. That is the striped band.
A rough projection only. Everyone follows their own path and results differ. Your device does the sums and nothing is stored or sent. At 65 or older, see your doctor first.
The way this curve is worked out
The zone tops out at 500 g every week, the gentlest pace, and bottoms out at 1 kg every week, the level where the risk starts.
Early weeks go quicker, largely because of water, and then things level off. After 40, the typical curve flattens gradually as metabolism slows. For similar effort, men tend to shed weight slightly sooner than women.
The journey curve includes flat spells lasting several days and slight regains, just like everyday life. It cannot tell you how yours will go.
These tips are general ones. They do not stand in for medical advice.
Further reading
For help from day to day, take a look at the healthy eating programme.