Every diet that works does the same thing underneath: it reduces how much you eat. Calorie counting is one way to get there, and it is a good one for people who enjoy data. For everyone else it collapses within a few weeks, because logging every meal is a part-time job.
Portion control gets to the same place through a different door. Instead of measuring what you ate, you decide in advance how much goes on the plate.
Why portions work when counting fails
- The decision happens once, at plating, rather than continuously through the meal.
- It survives eating out, other people cooking, and days you cannot be bothered.
- It removes the all-or-nothing failure mode: a missed log does not end the streak, because there is no log.
- It builds a durable skill — recognising a normal portion — that you keep after you stop using any app.
Where to start
- 1Fill half the plate with vegetables or salad. This one change does most of the work.
- 2Make a quarter of the plate protein — roughly a palm-sized serving of meat, fish, tofu or pulses.
- 3Make a quarter starch: a cupped-hand serving of rice, pasta, potato or bread.
- 4Keep added fats to about a thumb-sized portion — oil, butter, cheese, nut butters.
- 5Serve from the kitchen, not from dishes on the table. Second helpings should require standing up.
The four mistakes that undo it
- Drinking calories: juices, lattes and soft drinks bypass portion logic entirely.
- Plate creep: portions grow back over weeks. Re-checking every month or two catches it early.
- Cutting too hard: half-portions leave you hungry by 4pm, and hungry evenings are where plans die.
- Ignoring protein: too little protein makes portion control feel like deprivation instead of a meal.
Using PortionPal for weight loss
- 1
Set portions for your goal
Start from guidance aimed at gradual loss rather than an aggressive cut you will abandon.
- 2
Check the plate before you eat
Use PortionPal while serving — that is the moment the decision is still cheap.
- 3
Keep protein and veg fixed
Adjust starches and fats first; keeping protein and vegetables steady keeps meals filling.
- 4
Re-check monthly
Compare your current portions to the guidance to catch plate creep before it adds up.
Free to download on iPhone & iPad
Frequently asked questions
How fast will I lose weight with portion control?
Typically slower than a strict diet and far more sustainably — often in the region of half a kilo a week when portions are consistently right-sized. Slower loss that lasts beats fast loss you regain.
Do I have to weigh food?
No. The whole point of portion guidance is that you can judge servings by eye and by hand-sized references.