There are countless myths about diet foods telling you how to lose weight and shed dozens of pounds is just a matter of weeks. However, when something sounds too good to be true, it typically is. Being able to recognize these common myths is important as you research your weight-loss strategy.

  • Eating at Night Makes You Fat – Many diets tell you not to eat after a certain time in the evening. They say the body will store more fat because it is not burned off with any activity. A study at the Dunn Nutrition Centre in Cambridge suggests otherwise. Volunteers were placed in a whole body calorimeter, which measures calories burned and stored. They were fed with a large lunch and small evening meal for one test period, then a small lunch and large evening meal during a second test period. The results revealed the large meal eaten late at night did not make the body store more fat. It’s not when you eat that’s important, but the total amount you consume in a 24-hour period. There is no difference in the quality of calories based on the time you eat them. The only important thing is the total number your body consumes each day. As a trainer to elite athletes and models, I do suggest that they avoid starchy carbs in the latter part of the day, and focus on eating fibrous carbs after midday.
  • Rice and Beans Must Be Eaten Together – There is no digestive partnership between rice and beans; the nutrients of these two can be absorbed both together and separately.
  • Gaining Weight due to Poor Digestion – If your body is unable to process something, it will actually lead to weight gain and nutrient deficiency, rather than losing weight.
  • Microwaving Eliminates Nutrients – The temperature at which you cook food can affect nutrient integrity, but not the tool you use. In fact, microwaves cook things so quickly that many of the nutrients are retained.
  • Gluten-free Diets for All – Gluten intolerance and sensitivity are real medical conditions, but for people without those issues, gluten is perfectly healthy, and has never been directly linked to any negative health issues.
  • Fasting is Good for You – Juice cleanses and physical fasting can be a good way to re-set your appetite, but its ability to detoxify the body is no better than normal food, considering that the body has very powerful organs that can detoxify the body without any help from your dietary choices.
  • Low-fat or no-fat diets are good for you – Leading dietician Lyndel Costain says: ‘People tend to think they need a low-fat diet to lose weight, but you should still have a third of your calories coming from fat.’ The body needs fat for energy, tissue repair and to transport vitamins A, D, E and K around the body.
  • Crash dieting or fasting makes you lose weight – This may be true in the short term, but ultimately it can hinder weight loss. The loss of lean muscle causes a fall in your basal metabolic rate – the amount of calories your body needs on a daily basis. This means your body will need fewer calories than it did previously, making weight gain more likely once you stop dieting. It’s also why exercise is recommended in any weight-loss plan to build muscle and maintain your metabolic rate.
  • A slow metabolism prevents weight loss – This is a common myth among dieters who are struggling to lose weight. Studies have shown that resting metabolism – the number of calories used by the body at rest – increases as people become fatter. In other words, the larger you are, the more calories you need to keep your body going and the higher your metabolism. Clare Grace, research dietitian at the Queen Mary University of London, says: ‘Weight gain occurs when the number of calories eaten is greater than the number used up by the body. ‘Unfortunately, people are becoming increasingly sedentary, burning off less and less calories, and it seems likely this is a crucial factor in the increasing numbers struggling to control their weight.’
  • Fattening foods equal rapid weight gain – Believe it or not, true weight gain is a slow process. You need to eat an extra 3500 calories to gain one pound of body fat (and vice versa for losing it). Lyndel Costain explains: ‘If the scales say you’ve gained a few pounds after a meal out, it’s largely due to fluid, which will resolve itself – as long as you don’t get fed up, and keep overeating!

‘A lot of people feel guilty and think they’ve blown their diet if they eat rich foods. But, how can a 50g chocolate bar make you instantly put on pounds?

‘For long-term weight control, balance high-fat foods with healthy food and activity.’

  • Low-fat foods help you lose weight – ‘Low-fat’ or ‘fat-free’ doesn’t necessarily mean low calorie or calorie-free, warns Lyndel Costain. Check the calorie content of foods, especially cakes, biscuits, crisps, ice creams and ready meals. Extra sugars and thickeners are often added to boost flavour and texture, so calorie content may be only a bit less, or similar to standard products. Foods labelled low-fat should contain no more than 3g fat per 100g. ‘Watching the quantity is important,’ adds nutritionist Alison Sullivan. ‘People tend to have half-fat spread but then use twice as much. ‘And things like fruit pastilles may be low in fat, but are high in sugar which turns to fat. ‘With low fat foods, look to see where else the calories might come from.’
  • Cholesterol is bad for you – Cholesterol is a fatty substance that is made mostly by the liver. It can be bad for us, because it forms deposits that line and clog our arteries. Clogged arteries contribute to heart disease. But we all need some blood cholesterol because it’s used to build cells and make vital hormones – and there’s good and bad cholesterol. Lyndel Costain explains: ‘Saturated fats found in food like meat, cheese, cream, butter and processed pastries tend to raise low density lipoprotein (LDL) cholesterol, known as ‘bad’ cholesterol, which delivers cholesterol to the arteries. ‘High density lipoprotein (HDL), or ‘good’ cholesterol, transports cholesterol away from the arteries, back to the liver.’ So choose unsaturated fats such as vegetable oils, nuts and seeds.
  • Banana myth – Many people believe bananas are fattening. Bananas are low in fat and are packed with potassium. There is only 0.5g fat and 95 calories in a banana.
  • Vegetarians can’t build muscle -Vegetarians can be as muscular as meat eaters by getting their protein from vegetable sources such as cheese, nuts, pulses and grains. Claire MacEvilly says: ‘You need protein to build muscle, but too much can lead to long-term side effects.
  • You always gain weight when you stop smoking – Some people gain weight when they stop smoking, some lose weight and some stay the same. While nicotine does increase the body’s metabolism, its effect is small. It’s far healthier to be an overweight non-smoker than not bother giving up because you think you’ll put on weight. Alison Sullivan says: ‘Where people tend to fall down is when they replace a cigarette with comfort food. ‘Chewing sugar-free gum or snacking on vegetable strips kept in the fridge is a good idea because you can have these instead of reaching for the cookie tin.

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