Health & Wellbeing4 weight loss myths we all need to stop believing
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4 weight loss myths we all need to stop believing

By The Press Association Jan 3, 2023

From skipping meals to cutting carbs, we get the expert take on some common weight-loss claims

Chances are, many of us will be starting 2023 with the goal of losing weight – and every year, it seems there’s a new diet or product heralded as the best way to do it.

But all too often they don’t achieve long-lasting results – and aren’t really a sensible, healthy choice either.

“For the most part, foods should not be ‘banned’ or eliminated completely,” says GP Dr Sameer Sanghvi, from LloydsPharmacy Online Doctor (onlinedoctor.lloydspharmacy.com).

A man chopping veg and potatoes in the kitchen

Diet myths are common at this time of year

Nutritional therapist Laura Southern (londonfoodtherapy.com) adds: “January is a busy month for patients wanting my help with losing weight, but I always advise them to stay away from fad diets, juice cleanses and extreme calorie restriction, as these can just lead to disordered eating and yo-yo dieting.

“Plus, they don’t work,” she adds. “It’s estimated 95% of people who embark on a diet regain the weight and more between one to five years later.”

Southern says there’s no one-size-fits-all approach to weight loss, adding: “When I’m supporting patients, it’s a very personalised and tailored approach that takes into account their health, metabolism, digestion and lifestyle.”

Here, the experts address some of the most common weight-loss claims…

1. Skipping meals

Southern says intermittent fasting – usually a 12-hour overnight fast, with gaps between meals – may sometimes be recommended as part of a weight-loss programme. But generally speaking, skipping meals is not advised.

Skipping meals can lead to disordered eating

“While for some people, this [intermittent fasting] could mean skipping a meal, I would never advise anyone to do that without support – it’s simply not suitable or necessary for many people,” says Southern. “Skipping meals or eating in a restricted way can lead to binge eating, which creates unhealthy behaviours and won’t ultimately support weight loss.”

Sanghvi says it’s far better to eat regular, healthy meals: “Eating regular meals helps your body get into a routine, and eating at regular intervals helps your body burn calories quicker and stops temptation to snack.”

2. Cutting carbs

While many diets advocate cutting carbs, the experts stress there are many different types of carbohydrates – and while they’re often thought of as being just white bread, pasta, rice and potatoes, carbohydrates are also found in foods like veg, fruit, nuts and seeds.

“Carbohydrates are a really important part of our diet,”
stresses Sanghvi, who says most adults need around 225–325g of carbohydrates a day.

There are three different types of carbs – starchy, fibre and sugars. Sanghvi says starchy carbs (like potatoes, bread, pasta and rice – wholegrain varieties where possible) should make up a third of our daily food intake.

“They’re a great source of energy and contain lots of nutrients we need to keep the body healthy,” he explains. “Starchy carbs often contain fibre, which is good for gut health and to keep you feeling fuller for longer.”

However, there is a part of the avoiding carbs mantra that’s worth adhering to, he suggests: “Most of us should reduce our intake of sugars, especially free sugars – these are the sugars added to chocolates, cakes and fizzy drinks, but they also occur naturally in honey and juice.”

Southern adds: “Cutting out carbs is one I see from my patients again and again. Carbohydrates are nourishing and health-filled foods and they support our microbiome, hormones, mood, energy and satiety.

“If your diet is heavy in simple, refined carbs – pastries, biscuits, white bread, white pasta, sweets, etc –  then cutting carbs will be supportive to weight loss and overall health. Cutting out carbs from veg, pulses and fruit isn’t something I usually recommend though. “

3. Breakfast like a king

Sanghvi says whether breakfast is really the most important meal of the day is a hotly debated topic. One large US  study, he notes, analysed the health of 50,000 people and found those eating breakfast were more likely to have a lower BMI.

“So, there’s something in it,” he says – but that doesn’t mean a huge greasy fry-up first thing ticks the box. It still comes down to sensible choices.

A bowl of porridge oats with banana and blueberries

There are loads of healthy breakfast options

“Having a good breakfast is a great way to set you up for the day. But don’t overdo it at breakfast, or you might eat into your calorie intake for the day, leaving yourself feeling hungry later,” says Sanghvi.

However, it’s also a good idea not to have a huge meal right before going to bed. “That’s because your body doesn’t have time to digest the food properly, and also it can impact how well you sleep,” he adds.

4. Only eating low-fat foods

While low-fat foods may sometimes help reduce intake of certain high-calorie, unhealthy fats, Sanghvi says it’s important to look carefully at what low-fat food you buy. Just because it’s lower in fat than its full-fat counterpart, doesn’t necessarily mean it’s actually a low-fat food – or that it’s better for you.

Foods labelled as low-fat aren’t necessarily healthier

“For something to be labelled low-fat, reduced fat or lite/light, it has to have 30% less fat than a similar product,” says Sanghvi. “However, it’s really important to bear in mind that if something is already high in fat, the lower fat version might still be a high-fat food. Low-fat foods aren’t necessarily low-calorie either. So, it’s important to always check food labels closely.”

Also, some foods labelled low-fat may still be loaded with sugar and sweeteners. Plus, like carbs, fats are not always ‘bad’.

“There’s no need to consume only low-fat foods when trying to lose weight. Fat plays an important role in our bodies, and it can also help make meals feel more satisfying,” says registered dietitian Kendra Haire, a coach for online health and weight management brand Noom (noom.com).

She says healthy fat sources include nuts and nut butters, seeds, avocado, olive oil and fatty fish. “It’s more important to consider the type of fat,” Haire adds, “and to keep portion sizes moderate.”

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