metaboliq
Eat in much the same way every day of the week, weigh yourself most mornings, and judge progress by the weekly average rather than by any one reading. That is the core of losing weight consistently. After a quicker first fortnight, which is mostly water, a steady pace for most adults is a quarter of a kilo to one kilo a week. The exact speed matters less than many people expect. In a Melbourne trial, weight lost slowly came back at the same rate as weight lost quickly. In a long American registry study, the habit that best predicted keeping weight off was eating the same way on weekdays, weekends and holidays.
Start with two or three changes you could keep up during an exam week, a wedding or a bout of flu. Give each one about two months to become automatic. Then add two short strength sessions a week, so that most of what you lose is fat.
What does losing weight consistently look like?
On a graph it looks like a staircase with uneven steps, heading down. On any one morning your weight can swing by a kilo because of salt, a late dinner, constipation, a hard workout or your period. None of those swings is fat, so a single reading tells you very little.
Weigh yourself at the same time each morning, after the toilet and before tea, and note the number. On Sunday, add up the week's readings and divide by the number of days. If this week's average is below last week's, you are losing steadily, whatever Wednesday said.
For most people losing at a sustainable pace, the weekly average falls by somewhere between a quarter of a kilo and a kilo. The first fortnight usually moves faster, as the body lets go of water and stored carbohydrate. Later, two or three flat weeks in a row are a cue to recheck portions and steps.
Weighing often helps, and it does not have to feel like a test. Zheng and colleagues reviewed 17 studies of self-weighing. People who weighed themselves regularly lost more weight, and the studies found no sign that it made them more anxious or low.
Sources: [1]
Is slow weight loss better than fast weight loss?
For decades the advice has been that weight lost slowly stays off better. Purcell and colleagues in Melbourne put that to a direct test with 200 adults with obesity. One group followed a 12-week rapid plan built on meal replacements. The other followed a 36-week gradual plan. Both aimed for a 15% loss.
Everyone who reached 12.5% then moved to the same maintenance diet for nearly three years. By the end, the slow group had regained about 71% of what they lost, and the fast group about 70%. The speed of the loss made no difference to the speed of the regain.
The first phase held a surprise of its own. Only half of the gradual group reached 12.5% in the time allowed, compared with 81% of the rapid group. Thirty-six weeks is a long time to keep going, and plenty of people stalled along the way.
None of this makes crash dieting a good idea for everyone. One person in the rapid group developed an inflamed gallbladder, a known risk when weight falls very fast. For most people, a moderate cut they can live with for several months works well. Very rapid plans are best done with a doctor watching.
Sources: [2]
Why does eating the same way all week matter so much?
Gorin and colleagues asked this of 1,429 adults in the US National Weight Control Registry, all of whom had lost weight and kept it off for at least a year. Some said they ate more strictly on weekdays and relaxed at weekends. Others said they ate the same way all week. The researchers then followed them for a year.
Those who ate consistently were about one and a half times as likely to stay within about 2 kg of their weight. The weekday dieters gained more. The same held for holidays and festivals: people who kept their usual pattern through them did better than people who took a break.
Many Indian families will recognise the pattern. Monday to Friday is dal, sabzi and two rotis, packed in a tiffin. Sunday brings aloo paratha with white butter, a big biryani lunch and dinner out. Two days like that can cancel most of the deficit built during the week.
Sunday does not have to disappear. Keep the structure of the day the same, with protein at each meal and half the plate vegetables, and choose one rich meal rather than three. If the paratha is breakfast, lunch and dinner can look like Tuesday's.
Sources: [3]
How long does it take for a new habit to stick?
About two months, on average, and longer for some. Lally and colleagues at University College London asked 96 volunteers to choose one new daily habit. Some chose a glass of water with lunch, others a piece of fruit or sit-ups after morning tea. Every day the volunteers rated how automatic it felt.
The typical habit levelled off after 66 days. The range was wide, from 18 days to an estimated 254. A glass of water became automatic quickly. Exercise took much longer.
The part worth remembering is what happened when people missed a day. It made almost no difference. Those who skipped once and picked up again the next day got there about as well as those who never missed.
The easiest way to use this is to attach each new habit to something you already do every day. Walk for 15 minutes as soon as the dinner plates are cleared. Serve dal and curd before the rice. Step on the scale straight after brushing your teeth. Stick with one or two for about two months before adding the next, and if you miss a day, simply carry on.
Sources: [4]
What should you eat every day to lose weight steadily?
Mostly what you already eat, in slightly smaller amounts and with more protein. In an Indian home, sustainable weight loss rarely means salads and soups. It means the same dal, roti, sabzi and curd, put on the plate a little differently.
A working day might begin with two besan chillas, or a bowl of poha with peanuts, and tea with half the usual sugar. Lunch could be two rotis, a katori of dal, a large bowl of sabzi and some curd. A fruit or a handful of roasted chana carries you through the evening. Dinner is lighter: paneer bhurji, or fish curry with vegetables and one roti.
Three habits do most of the work. Decide the number of rotis or the size of the rice portion before you sit down, and eat them after the dal and sabzi. Put a protein food on every plate, whether dal, paneer, curd, eggs, chicken or fish. For one week, measure the cooking oil with a tablespoon. Most people discover they use about twice what they thought.
Because none of it needs special food, you can eat this way at your mother-in-law's table, in the office canteen or at a dhaba on the highway. That is why it tends to last.
Can you lose weight gradually without exercise?
You can. The calorie gap comes mostly from food, so careful eating alone will bring the weekly average down. What exercise changes is the kind of weight you lose.
Weinheimer and colleagues pulled together 52 studies in adults over 50. In 81% of the groups that only dieted, at least 15% of the weight that came off was fat-free mass, which includes muscle. In groups that also exercised, that happened in just 39%. Every kilo of muscle lost lowers the energy your body burns at rest, and that makes the next kilo of fat slower to shift.
So even if you never plan to run, it is worth doing a little strength work. Twice a week, spend 20 minutes on squats down to a chair, push-ups against the kitchen wall, lunges across the room and rows with a filled two-litre bottle in each hand. When those feel easy, slow them down or add a resistance band. On the other days, a half-hour walk after your largest meal is plenty.
If even that feels like too much right now, start with the walk alone. Ten minutes after lunch and ten after dinner is a perfectly good first week.
Sources: [5]
Why does steady weight loss slow down after a few months?
A lighter body needs less energy, so the gap between what you eat and what you burn narrows as you go. Hall's model in The Lancet describes how slowly this plays out. A lasting cut of about 24 calories a day eventually shifts weight by about a kilo. Half of that change arrives in the first year and most of the rest by year three.
The body also adapts. Fothergill and colleagues measured contestants six years after a US weight-loss television show. Their resting metabolism was still about 500 calories a day below what their new size predicted. Theirs was an extreme case of very fast loss, but milder versions of the same response are common.
Sleep plays a part too. In Nedeltcheva's study, people on the same diet who slept 5.5 hours a night instead of 8.5 lost about half as much fat, and more lean tissue, over two weeks.
When the weekly average stops falling for several weeks, it helps to look at the body as well as the plate. At Metaboliq that begins with a home blood test covering thyroid, sugar, insulin and lipids, read with you by a doctor. The plan built on those results aims to lose up to 20% of body weight while keeping muscle, which means protein and strength work rise as calories come down.
What keeps weight loss going over years, not weeks?
The routines that took the weight off, kept going after it has come off. The Look AHEAD study followed 5,145 adults with type 2 diabetes for eight years. In the group given intensive lifestyle support, half were still at least 5% below their starting weight at year eight, and about a quarter at least 10% below. Those who stayed lighter reported weighing themselves, eating regular meals and staying active far more often than those who regained.
Wing and Phelan found the same habits among people in the Weight Control Registry who had kept off large losses. They also reported something encouraging. After two to five years at a steady weight, people's chances of staying there improved sharply.
The risky time is the month you reach your goal. That is when people tend to stop weighing, return to second helpings and let the evening walk go. Keep the scale out, and keep weighing a few times a week. If you want to eat more, add one roti or one fruit a day and watch the weekly average for a month before adding anything else. If it creeps up by more than a kilo, go back a step.