Weight Loss Shakes

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If you’re serious about losing weight fast, we’ve compared some of the best weight loss shake brands available with our customer satisfaction ratings.

* Overall satisfaction is an individual rating and not a combined total of all ratings. Brands with equal overall satisfaction ratings are listed in alphabetical order.
^ By clicking on a brand or ‘details’ button, you will leave Canstar Blue and be taken to our referral partner to compare. You agree that Canstar Blue’s terms and conditions apply to this referral. If you click on a brand that our referral partner does not cover, you will be taken to a brand page on Canstar Blue.
Canstar Blue research finalised in July 2015, published in September 2015.

See Our Ratings Methodology

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Most Satisfied Customers | ALDI Slim & Trim

Canstar Blue annually surveys dieting Aussies to find out which brands of weight loss shakes are rated highest, and we’ve noticed our own trend over the last three years as ALDI’s Slim & Trim range of shakes has consistently outscored the rest – including some of the biggest names in the industry.

ALDI shapes up with third straight award win for Weight Loss Shakes

Losing weight is serious business – not just for individuals looking to drop some kilos, but for the big companies hoping to cash-in on Australia’s collective growing waistline. A shocking 63% of Australian adults and one in four children are now classed as overweight or obese – a rise of almost 10% in 20 years – and the trend is expected to continue.

A high body mass index (BMI) makes you more susceptible to several serious health conditions, such as type 2 diabetes, heart disease and some cancers.

For those who would like to drop some belt sizes – to improve their fitness, health, self-esteem or any number of other reasons – the weight loss industry competition may well be considered a good thing. Just like there has never been a greater number of fast food services to play a part in you pilling on the pounds, there have never been more weight loss solutions to help you slim down. For people who struggle with their weight, it seems to be a vicious circle, and breaking it can be extremely difficult. Our survey of dieting Australians found that:

  • 65% think other people judge them based on their appearance
  • 44% say being overweight is the biggest cause of stress in their life
  • 32% don’t have confidence to apply for jobs or promotions because they’re overweight

Almost bursting out of pharmacies, weight loss products come with big promises and give consumers high hopes. But which ones really live up to expectations and help people achieve their healthier goals? Canstar Blue annually surveys dieting Aussies to find out which brands of weight loss shakes are rated highest, and we’ve noticed our own trend over the last three years as ALDI’s Slim & Trim range of shakes has consistently outscored the rest – including some of the biggest names in the industry. Given the shakes come from a discount supermarket chain, you might call it dieting on the cheap. But those who have had success with Slim & Trim simply report a recipe for weight loss success.

If you’re looking to compare weight loss shakes, we hope our ratings prove helpful.

Do weight loss shakes work?

Can you really lose weight by drinking something that tastes like chocolate? Well, it seems likely that replacing two meals a day with relatively low-kilojoule shakes will have the desired effect in the short-term. Blackmores quotes a study which claims that participants lost approximately 7% of their bodyweight over a 12-week period by consuming two meal replacement shakes and one sensible meal each day. However, dieticians and health experts are spilt over the long-term benefits of consuming weight loss shakes as people struggle to adapt to ‘normal’ eating habits after their initial weight loss. They stress the importance of eating healthy, wholesome foods and also raise concerns that dieters could underestimate their daily intake of calories by using weight loss shakes.

“… As part of a calorie reducing diet, you will be hungry. You can’t hide that.”
Associate Professor Tim Crowe, a nutrition researcher at a leading Australian university, 2015

If the shakes fail to keep you feeling full-up, you could be prone to snacking and may end up exceeding your recommended daily allowance. That’s a trap many people seem to fall into, as our survey found 35% of dieters drank their shakes in addition to eating three or more meals a day. Your weight loss is also likely to fail if you’re tempted to drink two or three shakes per sitting instead of one.

‘Slow and steady wins the race’ is usually the advice from dieticians. So are weight loss shakes just a temporary fix? The aforementioned study went on to claim that “many” of its participants maintained their initial weight loss after 12 months by switching to one shake and two sensible meals per day. The research concluded that meal replacement shakes offer several benefits, including improved behavioral compliance and increased nutritional knowledge. But you’ll no doubt be able to find numerous other studies that claim weight loss shakes either do or don’t work. Our survey of Aussies who have used weight loss shakes in the last six months found:

  • 60% lost weight using shakes
  • 27% put on weight using shakes

Like with most things in life, there are pros and cons of using diet shakes. The important thing to remember is that they are designed to be used in a specific way; if you stick to the plan, you should lose weight, but if you don’t, you may not just fail to lose weight – you could pile it on.

There’s no doubt that they divide opinion, but consumers who use diet shakes generally speak highly of them – a significant 46% told us they struggle to lose weight without them. Whichever brand of shakes you choose to use, just remember to follow the guideline of the program. You can then be the judge as to how effective they really are.

Why use weight loss shakes?

There are lots of physical and emotional reasons why people become overweight, but for some it will be an unhealthy combination of their busy lifestyle, irregular eating habits and poor food choices. Some people will turn to weight loss shakes as a last resort after failed attempts to lose weight by more ‘conventional’ methods such as eating smaller portions and introducing regular exercise to their daily routines. But others may see weight loss shakes as a convenient and tasty option – who doesn’t like the idea of slimming down by drinking delicious chocolate, strawberry or vanilla shakes? Diet shakes normally just require a powder to be mixed with skimmed milk or water, making them easy to pack in your work bag and quick to prepare, reducing your chances of grabbing an unhealthy snack when you crave a quick bite to eat.

How do weight loss shakes work?

Weight loss shakes (also known as diet shakes or meal replacement shakes) are designed to act as a replacement for large meals, keeping you feeling full-up and energised, without consuming food and potentially a significant amount of calories (or kilojoules). Replacing some meals with calorie-controlled diet shakes means you will reduce your daily and shed weight over time – at least, in theory. Weight loss programs generally guide consumers to replace one or two meals per day with shakes – not every meal. Diet shakes tend to include around 200-400 calories but they should be consumed in addition to a regular, healthy-balanced diet. Of course, you could simply replace one or two meals each day with some fruit or vegetables and replicate a similar level of calorie-reduction, but the idea of weight loss shakes is to keep your body fuelled with the essential nutrients it needs.

What are weight loss shakes made of?

Weight loss shakes are generally a combination of different fibres, proteins, vitamins, minerals and other additives in a flavoured milk or water-based drink. As you’d expect, ingredients can vary depending on the type of products you buy, and some brands are better at detailing their ingredients than others. The ingredients listed in some products may appear more scary than yummy – with plenty of long words and numbers – but we recommend comparing ingredients between different brands to get a firm understanding of what you’ll be drinking. For example, Rapid Loss and Optifast provide detailed breakdowns on what’s in their products.

How much do weight loss shakes cost?

Weight loss shakes can be expensive and usually come in large packs designed to tide you over for a few weeks at a time. You can also expect some of the big name brands, which sometimes boast celebrity endorsements, to cost even more. A good way to judge the value of diet shakes is to work out how much money you’d be likely to spend on the meals that the shakes are going to replace. For example, if you spend $10 on lunch every day, there might be significant savings to be made from buying a $30 supply of shakes that lasts you a whole week. From our survey of dieters, we found consumers spend an average of $57.30 on shakes per month.

We wish you well on your weight loss journey.

Frequently asked questions

Canstar Blue commissioned Colmar Brunton to survey 6,000 Australian consumers across a range of categories to measure and track customer satisfaction. The outcomes reported are the results from customers within the survey group who have purchased and consumed weight loss shakes in the last six month – in this case, 729 people.

Brands must have received at least 30 responses to be included. Results are comparative and it should be noted that brands receiving three stars have still achieved a satisfaction measure of at least six out of 10. Not all brands available in the market have been compared in this survey. The ratings table is first sorted by star ratings and then alphabetically. A rated brand may receive a ‘N/A’ (Not Applicable) rating if it does not receive the minimum number of responses for that criteria.

ALDI Slim & Trim

Supermarket chain ALDI says its Slim & Trim range of meal replacement shakes are nutritionally balanced and a “good source of protein and vitamins”. It also promises no artificial colours or sweeteners, and no added preservatives. The shakes are available in four flavours and are 99% fat free. What 54 survey respondents say about ALDI Slim Trim Weight Loss Shakes.

Herbalife

Herbalife proclaims to make weight loss easy with a “science-based program” that combines cellular nutrition and the power of protein so you can “manage your hunger, maintain a health metabolism and feel energised as you lose those unwanted kilos”. The Herbalife program consists of two shakes each day, targeted supplements, protein-rich snacks and a balanced, portion-controlled main meal. You’ll find shakes flavoured French vanilla, Dutch Chocolate, Berry and cookies ‘n cream. Herbalife also says it can help you maintain a healthy weight following your initial success. Read what 48 survey respondents think about Herbalife Weight Loss Shakes.

Nature’s Way SlimRight

Exercise, a calorie-controlled diet and the right nutritional balance are the key ingredients for weight loss, according to Nature’s Way, which says its SlimRight range delivers all of those and more. Nature’s Way says its range of products – which includes chocolate, vanilla, strawberry and green coffee bean-flavoured shakes – has been a market-leader since 2011.

Rapid Loss

Rapid Loss claims to do exactly what its name suggests – help you lose weight, fast. It says its meal replacement shakes are calorie-controlled with a “unique fibre” that absorbs water and swells inside the stomach, making you feel full without calories. The shakes are supported by a “highly successful” plan that consists of a meal plan and exercise program. All up, Rapid Loss says you could lose up to 3kg per week.

Tony Ferguson

Tony Ferguson says it users the latest evidence in weight loss and nutrition to bring you a supportive program that is focused on long-term weight loss and weight maintenance. Its shakes are available in a wide range of flavours, including strawberries & cream, café latte, espresso, chocolate macadamia and chocolate cherry coconut. Tony Ferguson encourages achievable weekly weight loss of up to 1kg per week. Read what 42 survey respondents say about Tony Ferguson Weight Loss Shakes.

Celebrity Slim

Celebrity Slim’s weight loss program consists of three phases – focused on rapid, kick-start success, trimming down to reach your goal and then maintaining that weight loss. The rapid phase has been devised to reduce carbohydrates from the diet and encourages rapid weight loss by forcing the body to burn primarily fat instead of glucose for energy. The rapid shakes come in a variety of flavours and have been “formulated to eliminate cravings and get you motivated for the next phase”.

FatBlaster

Losing weight has never been tastier and easier, says FatBlaster. Its new shakes come in chocolate or vanilla flavor and are “nutritiously packed with protein, fibre, vitamins and minerals to help you feel full and to give you the energy you need”. FatBlaster also offers a wealth of dietary advice and meal plans.

Optifast

Optifast provides members with a recommended program to suit their weight management needs. Members are encouraged to record their eating and exercise progress and share their experiences with the Optifast community. The brand has a wide range of meal replacement products, including soups, desserts, bars and shakes that are available in a variety of flavours. They include caramel, banana, coffee, chocolate, strawberry, vanilla and assorted packs.

Optislim

Optislim says losing weight should be easy – and that’s always been the goal at the heart of the business. Its extensive range of diet shakes includes chocolate, strawberry, vanilla, banana and espresso flavours. It also sells a range of soups, bars and other snacks. Optislim also provides a web-based support programs and range of “detox” or “toning” meal plans. Read what 77 survey respondents have to say about about Optislim Weight Loss Shakes.

IsoWhey

IsoWhey says its range of products is scientifically formulated by qualified healthcare practitioners to give you pure whey protein in the right balance to help nourish your body, manage your weight and feel your best – inside and out. That range includes numerous snacks and five flavours of shakes – Ivory Coast chocolate, banana, Madagascan vanilla, strawberry and classic coffee.

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