Nutrition, explained
Why doesn't calorie counting work for weight loss?
Actually, it does. A calorie deficit is what loses weight. What decides whether you stay in one long enough is consistency, and what decides consistency is whether you're miserable. Only when you aren't can you keep it up.
The trouble is the counting
Counting by hand is harder than it looks. In a small 1992 study, people who said they couldn't lose weight however little they ate had their intake and energy use measured in a lab.1 On average they under-reported what they ate by 47% and over-reported their exercise by 51%. Their metabolism was normal: what they burned was within 5% of what was predicted for their bodies.
That isn't lying. It's what happens when you weigh, look up and add up every meal yourself. A splash of oil, a second handful, a label read in a hurry. The numbers drift, the scale doesn't move, and people decide the deficit doesn't work for them. Then they stop.
The plan you keep beats the plan on paper
In a trial of 609 adults, half followed a healthy low-fat plan and half a healthy low-carb plan.2 After a year they had lost about the same, 5.3 kg and 6.0 kg, and around one in five didn't finish. Neither plan was magic. What mattered was sticking with it.
Four things wreck that consistency, and each has a fix.
Eating food you hate
Be a food swapper: take the healthier version of something you like, and don't force down food you can't stand. If you dread a meal, you'll drop it, and then you'll drop the plan.
Not getting enough protein
Meals that are short on protein leave you hungrier. In one study of 19 people, raising protein from 15% to 30% of calories, with carbs unchanged, led them to eat about 441 fewer calories a day without being told to eat less.3
One thing we won't tell you: that a craving for chocolate means you're missing a mineral. The research we found says that link is weak.4 The exception is craving things that aren't food, like ice or clay. That's worth mentioning to your GP, because it can go with low iron.
Cutting too hard
Your body notices when the cut is too big. In the Minnesota starvation study, 36 healthy young men had their food cut to roughly half of what they had been eating, while walking about 22 miles a week, for 24 weeks.5 They lost about a quarter of their body weight, and food took over their thoughts. When they could eat freely again, many ate far more than their bodies needed.
That was an extreme case, and the lesson isn't a number. A cut that's too big for your body, held for too long, backfires. That's why Charted Fitness never sets a target below a safe floor.
Food that's always in reach
Keep the chocolate and biscuits out of easy reach. A review of 12 studies found that putting food further away reduced how much people ate, though the evidence is low certainty and mostly from labs.6 If you're craving something sweet, pick one that brings nutrients: pineapple, grapes, berries or a Greek yoghurt. Small swaps like these add up.
When the scale stalls
Even when you're consistent, the scale won't fall in a straight line, and the stalls are when most people quit. The first week's drop is partly water, so the second week looks slow. As you get lighter, your body needs fewer calories, so a target that worked at the start does less later. And small logging slips build up over weeks. None of these means the deficit has stopped working. They mean the plan needs checking, not abandoning.
The goal is the habit
Reaching your goal weight means little if the way you got there sends you back to your old habits. Charted Fitness is built around the habits you can keep: plates made from foods you like, sized to your targets so you don't do the maths, protein and fibre built into every meal, a swap for anything you don't fancy, and a calorie target that never drops below a safe floor.
Charted Fitness
Don't count it. Chart it.
Answer a few questions and see your targets and a week of plates built from food you like, with the maths already done.
Build my planSources
- Lichtman et al., Discrepancy between self-reported and actual caloric intake and exercise in obese subjects, New England Journal of Medicine, 1992.
- Gardner et al., the DIETFITS trial, JAMA, 2018.
- Weigle et al., A high-protein diet induces sustained reductions in appetite, ad libitum caloric intake, and body weight, American Journal of Clinical Nutrition, 2005.
- Review of food cravings and nutrient deficiency, 2020.
- Kalm and Semba, They starved so that others be better fed: remembering Ancel Keys and the Minnesota experiment, Journal of Nutrition, 2005.
- Hollands et al., Altering the availability or proximity of food, alcohol and tobacco products to change their selection and consumption, Cochrane Database of Systematic Reviews, 2019.
Charted Fitness gives general nutrition information, not medical advice. If you're pregnant, breastfeeding, under 18 or managing a health condition, talk to your doctor or a registered dietitian before changing how you eat.