天美传媒

December 17, 2019

Hoping to get in shape for summer? Ditch the fads in favour of a diet more likely to stick

Losing weight shouldn't be a short-term solution

Weight gain can creep up on us. Over the winter months we enjoy foods that create a feeling of comfort and warmth. Many of these foods tend to be higher in calories, usually from fat or added sugars.

As we enter the summer months, some of us start to think about getting in shape 鈥� and how we鈥檙e going to look in a bathing costume.

These concerns might be met with the temptation to seek a 鈥渜uick fix鈥� to weight loss. But this sort of approach is likely to mean finding yourself back in the same position this time next year.

Looking past the quick fix and fad diets to longer-term solutions will improve your chance of keeping the weight off and staying healthy all year round.

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Losing weight shouldn鈥檛 be a short-term solution

Extra body fat is a for developing chronic diseases including type 2 diabetes and heart disease. With Australians carrying too much body fat, many of us may be well-intentioned, but not making the best choices when it comes to what we eat.

Weight loss is largely a balance of choosing the right foods and being physically active in order to tip our internal energy balance scales in the right direction.

For the most part, quick-fix diets are based on calorie restriction as a means of weight loss. They focus on different strategies to get you to eat fewer calories without having to actively think about it.

Fad diets tend to share similar characteristics, such as eating fewer varieties of foods, fasting, and replacing meals.

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But weight loss isn鈥檛 just about swapping one or two foods for a month or two; it鈥檚 about establishing patterns to teach our bodies that can be maintained into the future.

Fad diets and quick fix options can be limited in several respects. For example, they can be difficult to stick to, or people on them can quickly after stopping the diet. In some cases, there is insufficient research around their in the longer term.

Let鈥檚 take a look at the way some of these characteristics feature in three popular diets.

Juicing/detoxification

usually last two to 21 days and require a person to attempt a juice-focused form of fasting, often in combination with vitamin or mineral supplements in place of all meals.

People on this diet lose weight rapidly because of the extremely low calorie intake. But this is a severely restricted type of diet and particularly difficult to follow long term without a risk of nutrient deficiency.

Also, while it might hold appeal as a marketing buzzword, detoxification is not a process the body needs to go though. Our livers are efficient at detoxifying with very little help.

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Intermittent fasting

An involves a combination of fasting days and usual eating days. The fasting strategies include complete fasting (no food or drinks are consumed on fasting days) and modified fasting (20-25% of calories is consumed on fasting days).

This diet leads to weight loss due to an overall decrease in calorie intake. But it鈥檚 hard to stick with the fasting pattern as it results in intense hunger. Similarly, this diet can lead to on usual eating days.

But even though people are allowed to eat what they want on non-fasting days, research shows most .

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Overall, for people who are able to stick with intermittent fasting, we don鈥檛 have enough evidence on the benefits and harms of the diet .

Long term energy restriction without fasting may result in the same and may be a better approach to continued weight management.

The paleo diet

The palaeolithic (paleo) diet was designed to reflect the foods consumed by our Stone Age ancestors before the agricultural revolution.

The paleo diet excludes processed foods and sugars. This recommendation lines up with the current evidence-based dietary recommendations. However, the paleo diet also excludes two major food groups 鈥� grain and dairy foods.

 

While short-term weight loss might be achieved, there鈥檚 no conclusive proof of benefit for weight loss and nutritional balance in the . People who follow the paleo diet might be at risk of nutritional deficiencies if they鈥檙e not getting any grains or dairy.

So it鈥檚 worth taking cues from the paleo diet in terms of limiting processed foods and sugars. But if you鈥檙e thinking of adopting the diet in its entirety, it would be important to seek support from a health professional to ensure you鈥檙e not missing out on essential nutrients.

Things to look out for

So how can you tell if a diet is likely to lead to long term weight loss success? Here are some :

1. does it incorporate foods from across the ?

2. is it flexible and practical?

3. can the foods be easily bought at the supermarket?

If the answer to these three questions is 鈥測es鈥�, you鈥檙e likely on to a good one. But if you鈥檙e getting at least one 鈥渘o鈥�, you might want to think carefully about whether the diet is the right choice for sustained weight loss.

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Of course, seeing results from a diet also depends on your level of commitment. While it may be easier to stay committed in the shorter term, if you want to keep the weight off year round, it鈥檚 important to make checking in with your food choices part of your ongoing routine.

, Associate professor, and , Associate Research Fellow, School of Medicine,

This article is republished from under a Creative Commons license. Read the .

UOW academics exercise academic freedom by providing expert commentary, opinion and analysis on a range of ongoing social issues and current affairs. This expert commentary reflects the views of those individual academics and does not necessarily reflect the views or policy positions of the University of 天美传媒.