OptiSlim Review – 5 Things You Need to Know

OptiSlim Review 

											- 5 Things You Need to Know
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Optislim is a company focused on promoting weight loss through food. The claim of rapid weight loss relies on you following a low-calorie diet or a very-low-calorie diet. Research (i.e., Healthcare) shows some very low-calorie diets are unsafe.

A licensed medical professional monitors the most extremely calorie-restrictive diets; this plan isn’t monitored. However, our team wanted to understand better the potential benefits of dietary changes related to weight loss. So, we focused on the meal plans, the benefits of calorie restrictions, and research supporting the claims. Then, we gathered the facts to give you the bottom line.

OptiSlim can be purchased through their Official Site.

OptiSlim Readers: Noom is offering our readers a risk-free trial, for a limited time. Click here for more information!

What is Optislim?

Optislim is an Australian weight-loss program initially developed to help obese patients with weight reduction. This VLCD (very low-calorie diet) incorporates total meal replacement, and the meals supposedly taste good and are affordable. An LCD (low-calorie diet) program is also available, and it involves partial meal replacement. The food products include cookies, bars, soups, shakes, and main course dishes like beef stroganoff and chili con carne. These products are available on the main website. There are now four different types of programs; weight loss, detoxing, toning, and weight management.

Can you lose weight with meal replacements? Let’s take a brief look at what research has to say.

  • Obesity Reviews – Though “Meal replacements are generally not recommended in clinical guidelines for the management of obesity,” research shows they are effective.
  • The American Journal of Clinical Nutrition – There’s even some evidence the meal replacement works best for lasting weight loss when combined with behavior therapy.
  • Gastroenterology – The trouble is, keeping weight off is hard. “Maintaining weight losses in the long term remains the biggest challenge and is undermined by an “obesogenic” environment and biological adaptations that accompany weight loss.”

From what we gathered, Optislim has been around since 1996. Some success stories posted on the company website and a decent variety of low-calorie foods and supplements are available but read on.

Optislim Contact Information

You can contact customer service in several ways.

Email: [email protected]

Free Call: 1800 882 408

Phone: +61 3 9562 6600

Fax: +61 3 9562 6990

Address: OPTIPHARM PTY LTD 49 Bond Street, Mordialloc, VIC, 3195 Australia

Optislim and the Better Business Bureau (BBB)

Optislim is not mentioned by the BBB. No filed has been opened, so no customer or BBB rating. The likely reason is that Optislim is located in Australia where it may appear on the local version of the BBB there.

OptiSlim Competitors


Taste of Optislim – “A Concern?”

The first thing we looked into with OptiSlim was the taste. Our Research Editor states, “We found all sorts of negative customer reviews about the food and supplements. This is a major drawback because if you can’t stomach the diet foods/supplements involved, you probably can’t commit to the diet.”
One customer said, “A waste of money and food is [bad].”

“These shakes taste really awful. No Thanks!” said another dieter.

Side Effects

Side Effects – “A Drawback?”

Some people have experienced OptiSlim side effects from the supplements. One customer commented, “My husband has been using Optislim and has been…dizzy.”

Another user stated, “When I stopped drinking it, my headaches had gone. I went back on the shakes a month later, and my headaches returned!!!”

The intensive research we’ve conducted has shown if there is a specific aspect of a diet program or supplement burdensome (too many side effects, unpleasant taste, a painful exercise), the odds of real fat loss success are not good. In other words, if Optislim does, in fact, lead to adverse reactions in a lot of people, this could be a real dilemma.

The Science

The Science – “Any Evidence?”

We could not find any solid science provided on the official Optislim website. While we know seriously reducing your daily caloric intake will lead to weight reduction, you can also accomplish this without the Optislim program. In fact, according to the Centers for Disease Control, reducing caloric intake and fasting can be done by keeping track of your food and following an eating schedule.

When it comes to very-low-calorie diets, the research is mixed. While research published in Obesity (Silver Spring) found this kind of dieting did not cause more weight loss than regular low-calorie diets, a study in the Scandinavian Journal of Primary Health Care found individuals doing this kind of dieting found weight loss success even after a year.

Bottom Line

The Bottom Line – Does Optislim Work?

So, should you invest in Optislim for weight-loss? Well, we like Optislim’s longevity as a diet program and some positive comments we saw about it online. However, we have some reservations about it because it’s not backed by science. Moreover, we’re concerned about the unpleasant taste of the supplements and the side effects they can cause.

If you’d like to drop more weight, then we advise you to go with a diet program or weight-loss product backed by solid science and easy to use.

Among the best products we’ve seen this year is a program called Noom. It’s with human coaching and personalized meal plans that Noom sets the standard for weight-loss support. This is more than an app; it’s a customized support system.

Furthermore, we’re so confident that you’ll love Noom that Dietsupplement readers gain access to a free trial offer for a limited time.

Learn More About Noom »

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What is OptiSlim?


OptiSlim is an Australian weight-loss program that offers meal replacement products and follows a low-calorie diet or a very-low-calorie diet plan to promote weight loss.

What are the side effects of Optislim?


Some people have experienced OptiSlim side effects from the supplements, including dizziness and headaches.

Does OptiSlim work?


While OptiSlim has been around for a while and has some positive feedback online, it’s not backed by science, and there are concerns about the unpleasant taste of the supplements and the side effects they can cause.

What is the price of Optislim?


-OptiBiome Shake Chocolate (10x60g) $29.95

-OptiBiome Shake Vanilla (10x60g) $29.95

-OptiBiome Shake Espresso (10x60g) $29.95

-OptiBiome Variety Pack (10x60g) $29.95

-OptiBiome Snack Bars $50.95

What is the difference between Optifast and Optislim?


Optifast is a weight-loss program that is medically supervised, while Optislim is an Australian brand of weight-loss foods.

Where can I buy OptiSlim?


OptiSlim can be purchased using their Official Site.

What is the Optislim diet?


The Optislim diet is low-calorie meal plan that heavily relies on the Optislim products. This diet is considered very-low-calorie and is only suggested for those who need to lose weight before surgery.

Can you have Optislim with milk?


According to the product’s instructions, Optislim shakes should be mixed with 200 ml of skim milk. Otherwise, the beverage would not be considered a meal replacement shake.

Who owns Optislim?


Optislim is owned by Optipharm, a private Australian company.

How fast do you lose weight on Optislim?


Optislim is a diet program designed to help people lose weight quickly and easily. This approach focuses on using meal replacements, exercise, and lifestyle coaching to help you reach your weight loss goals. Depending on individual factors like age, body composition, dietary choices, and level of physical activity, Optislim can help you lose up to 10 pounds in just two weeks. However, it is important to note that losing weight too quickly is not safe and could lead to long-term health problems. It’s best to consult your doctor before starting any new diet program.

What types of programs are offered by OptiSlim?


OptiSlim offers four different types of programs: weight loss, detoxing, toning, and weight management.

What is the difference between VLCD and LCD programs offered by OptiSlim?


The VLCD program involves total meal replacement, while the LCD program involves partial meal replacement.

Are OptiSlim meal replacement products tasty?


According to customer reviews, some customers have negative feedback about the taste of the food and supplements. However, taste preferences can vary from person to person.

Is OptiSlim monitored by a licensed medical professional?


This OptiSlim plan is not monitored by a licensed medical professional.

How can I contact OptiSlim customer service?


You can contact OptiSlim customer service by email, free call, phone, or fax.

Is OptiSlim listed on the Better Business Bureau (BBB)?


OptiSlim is not listed on the Better Business Bureau (BBB) as it is located in Australia. No filed has been opened, so no customer or BBB rating.

Can you lose weight with meal replacements?


Reducing daily caloric intake will lead to weight reduction. Meal replacements can be helpful, but they are not the only way to achieve weight loss.

Is there any scientific evidence to support OptiSlim claims?


There is no solid science provided on the official OptiSlim website. However, research has shown that reducing caloric intake and fasting can be done by keeping track of your food and following an eating schedule.

What weight-loss product or program is recommended by experts?


Experts recommend investing in a weight-loss product or program backed by solid science and easy to use.

Article Sources

  1. https://www.optislim.com.au/
  2. https://noom.8utb.net/c/1720052/500038/8591
  3. https://noom.8utb.net/c/1720052/500038/8591
  4. https://noom.8utb.net/c/1720052/500038/8591
  5. https://onlinelibrary.wiley.com/doi/full/10.1111/obr.12816
  6. https://academic.oup.com/ajcn/article/107/1/12/4825202
  7. https://pubmed.ncbi.nlm.nih.gov/28214525/
  8. https://noom.8utb.net/c/1720052/500038/8591
  9. https://noom.8utb.net/c/1720052/500038/8591
  10. https://www.nia.nih.gov/health/calorie-restriction-and-fasting-diets-what-do-we-know
  11. https://pubmed.ncbi.nlm.nih.gov/16988070/
  12. https://pubmed.ncbi.nlm.nih.gov/20429742/
  13. https://noom.8utb.net/c/1720052/500038/8591
  14. https://noom.8utb.net/c/1720052/500038/8591
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