Our review compares weight loss shakes on customer satisfaction, so you can find out what other Aussies think about the compared brands before you go ahead with a purchase. Think of it as like asking hundreds of your closest mates which weight loss shake they think is best!
Canstar Blue surveyed 943 Australians for their feedback on weight loss shake(s) they have purchased and used in the last six months.
The winning brand is the one that receives the highest Overall satisfaction rating once all the scores from the Overall satisfaction criteria are combined and averaged.
Find more detailed information on our Most Satisfied Customer methodology.
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ALDI Slim & Trim achieved five star ratings in all categories including overall satisfaction, effectiveness, taste, value for money, texture & consistency, variety & range and packaging.
ALDI Slim & Trim offers Aussies several types of weight loss shakes and protein supplement options for those looking to kickstart a new diet. While it may not have the range that other brands have, ALDI’s Slim & Trim Essential Health line does still have some classic flavours like chocolate, coffee, strawberry, and vanilla. Each meal replacement shake comes in individual serving sachets (55g), so you can buy exactly as many of each flavour as you like and need and can avoid getting stuck with a whole box or tub full of a flavour that doesn’t end up taking your fancy. They’re also handy to chuck in your bag or keep in your work drawer so you’ve always got a meal replacement shake on hand.
Musashi received four star ratings for overall satisfaction, effectiveness, taste, value for money, texture & consistency and packaging and a three star rating for variety & range.
Musashi’s range of weight loss shakes cover its shred & burn protein powders that assist in building lean muscle. Its main ingredients include whey protein, green tea extract to support metabolism, carnitine for energy metabolism and choline to support liver health among other benefits. You can find plenty of flavours including vanilla and chocolate and varying sizes of product from 340 grams to 900 grams for those who like to buy in bulk.
Rapid Loss achieved a five star rating for packaging and four star ratings in all other categories including overall satisfaction, effectiveness, taste, value for money, texture & consistency and variety & range.
Rapid Loss provides weight loss shakes and meal replacement shakes to promote weight loss in conjunction with its weight loss program. You can find a number of flavours from chocolate and vanilla to banana and choc mint to suit anyone’s preference. Its meal replacement and weight loss shakes are reduced in sugar, high in fibre and low calorie to keep you full of energy but to help with losing weight.
Slim Right received four star ratings for overall satisfaction, taste, value for money, variety & range and packaging and three star ratings for effectiveness and texture & consistency.
Slim Right is the weight loss supplement brand from Nature’s Way who sell natural proteins, supplements and superfoods such as daily greens. The meal replacement shakes come in flavours including strawberry, vanilla and chocolate and include ingredients such as protein and fibre to promote a balanced diet in replacement to a regular meal. The brand also includes a variety pack that include a number of each flavour so you can try and see which is your favourite.
Atkins received four star ratings for overall satisfaction and packaging and three star ratings in all other categories including effectiveness, taste, value for money, texture & consistency and variety & range.
Atkins offers a number of products that assist in weight loss including shakes, bars, protein chips and cookies. Its shakes come in a variety of flavours including some standouts such as cafe caramel shake, creamy cinnamon swirl, chai tea iced latte and chocolate banana as well as many more. The weight loss shakes are made with added protein and fibre to make sure you receive the nutrients you need for weight loss as well as keeping a balanced diet. You can purchase shakes in packs of four and eight or multi packs if you want to buy in bulk.
Optifast received three star ratings across all categories including overall satisfaction, effectiveness, taste, value for money, texture & consistency, variety & range and packaging.
Optifast offers a number of weight loss products including shakes and soups as well as a membership program to a multi-level weight loss program. Its VLCD shakes include a number of flavours such as vanilla, chocolate, strawberry, coffee, banana, caramel and more with protein plus options also available. The meal replacement shakes include a number of added vitamins essential to a balanced diet as well as a generous serving of protein.
BSC was rated four stars for texture & consistency, taste and effectiveness, with three stars for value for money, variety & range, packaging and overall satisfaction.
BSC is primarily known for its range of protein supplements, with its weight loss shake offerings leaning more towards those looking to shred down or go for low-carb diets. Those looking for weight management may be interested in the Shred Carnitine range, which aims to help assist with weight loss or weight management, metabolic rate, immune system and thyroid functionality, coming in a variety of tubs and flavours such as watermelon, sour berry, mango pash and grape.
FatBlaster was rated four stars for packaging, value for money, taste and effectiveness, with three stars for variety & range, texture & consistency and overall satisfaction.
FatBlaster is known for its weight loss programs, with products aligning with the multiple programs to help you find the best option for your fitness goals. Products include meal replacement shakes, snacks, cleanses and keto-specific products, with flavours in the meal replacement range including vanilla, chocolate, raspberry and caramel,with tubs or sachets available to purchase. FatBlaster also offer the Platinum+ range which includes ThermoBurn for additional benefits, as well as variety packs to help you find what you’re looking for.
The LADY Shake was rated four stars for value for money and variety & range, with three stars for packaging, texture & consistency, taste, effectiveness and overall satisfaction.
Stablemate to The MAN Shake, The LADY Shake offers a similar lineup to its counterpart, with shakes, bundles, snacks and accessories all available to purchase, including variety packs for when you want to try a few options, or simply can’t decide on your flavour of choice. Flavours include the staples of chocolate, vanilla and cookies & cream, with the GO! range featuring vanilla latte and mocha flavours for those looking for a coffee kick as well.
Optislim was rated four stars for value for money, variety & range and packaging, with three stars for texture & consistency, taste, effectiveness and overall satisfaction.
Operating for over the past 25 years, Optislim offers a variety of ranges for people to choose from, including ‘For Him’, ‘For Her’, VLCD (which stands for Very Low Calorie Diet) in addition to snacks, meal options and accessories such as shakers and blenders. Flavours include salted caramel, coffee, chocolate and vanilla, with plant-based options also available for those with dietary requirements and preferences, along with sample packs for those who want to try a bit of everything.
The MAN Shake was rated four stars for packaging, variety & range, value for money and taste, with three stars for texture & consistency, effectiveness and overall satisfaction.
Built for blokes who are looking to lose a few kilos, The MAN Shake offers a variety of weight loss shakes and snacks, along with accessories such as books, workout gear and shakers to help you with the weight loss journey. Weight loss shake flavours include chocolate, vanilla, honeycomb, choc mint, banana, cookies & cream and more, with variety packs also available for those who can’t decide on which flavour to try next. The MAN Shake also lists nutritional information online to help you do the maths on your intake, with bundles also available for those looking to stock up.
Yes, weight loss shakes can work. That’s the short answer, but only if you follow the guidelines properly and really commit to the challenge. However, weight loss shakes are not a magic solution or magic diet pill that will see you shedding kilos in no time. Losing weight requires patience, dedication, and willpower.
Ultimately, the best weight loss shakes should keep you full and satisfied between meals, to avoid naughty temptations. The danger of consuming shakes with very few calories (usually between 50-200 calories per serve) is that you could end up more prone to snacking or even turn to the sort of meals you are supposed to be replacing.
When asked whether they have lost weight using diet shakes, survey respondents told us:
Weight loss shakes are claimed to be made with a combination of different fibres, proteins, vitamins and minerals, plus some other additives and flavours depending on the brand.
Keep in mind that it’s important to check the sugar content of weight loss shakes, which can vary significantly across different products. It’s the same case with protein bars. Some products are packed with over 20g of sugar per serve, while others include less than 2g. Not only is consuming an excessive amount of sugar bad for you, but it’s also unlikely to suppress your appetite for long. If you want a weight loss shake that keeps you full for as long as possible, it could be worth looking at those with a large amount of protein.
Using diet shakes to replace one or two meals each day can prove to be an expensive way to drop the kilos. Our survey revealed Aussies are spending an average of $61 on diet shakes per month.
A useful way to judge whether it’s worth trying diet shakes, at least in terms of cost, is to work out how much you would normally spend on the meals that you’re replacing. However, there can be a significant difference in price between brands, so make sure to check how many servings you’re getting for your money. Generally speaking, buying meal replacement shakes in bulk is the cheapest way to go. Some diet drinks also come in sachets – which makes it easy to work out how many you will need for a week or month – while others come in large tubs, requiring a little more brainpower to determine how much you’ll need.
This report was written by Canstar Blue’s Home & Lifestyle Content Producer Kate King. Kate holds a Bachelor of Creative Industries from QUT majoring in Journalism and Media and Communications, and has written for a number of publications over the past five years.
Samantha Howse is Canstar Blue’s Consumer Research Specialist, coordinating the consumer research program behind our customer satisfaction awards across Canstar and Canstar Blue in Australia and New Zealand. Sam has earned a Bachelor of Business (Marketing) from Griffith University and, with seven years in market research and 2 years in marketing, she is experienced in survey design, implementation and analysis, coupled with an understanding of marketing principles and best practice.
Here are the past winning brands from Canstar Blue’s weight loss shakes review:
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*Prices correct as of publication date.