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OptiSlim Review - 6 Things You Need to Know

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!
Overview

What is Optislim?

Optislim, originating from Australia, is a Very Low-Calorie Diet (VLCD) designed as a nutritionally balanced total meal replacement. Originally developed to assist obese individuals in weight reduction, the program is tailored to provide a practical approach to weight management. The manufacturer claims that when three sachets are consumed daily, Optislim fulfills all essential nutritional requirements, incorporating 25 vitamins and minerals. It’s noteworthy, however, that these assertions stem from the company’s promotional material.

In addition to the VLCD program, Optislim offers a Low-Calorie Diet (LCD) alternative that involves partial meal replacement. The product range includes an assortment of items such as cookies, bars, soups, shakes, and main course dishes like beef stroganoff and chili con carne, all accessible through the official website. Presently, Optislim offers four distinct programs addressing weight loss, detoxing, toning, and ongoing weight management. The company contends that their meals not only contribute to weight management but also boast palatable flavors and affordability, though these aspects remain subject to individual preferences and interpretations.

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: customerservice@optipharm.com.au

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

Product
Rating
Review
Optifast
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FatBlaster
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Optifast
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Noom
read
Taste

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

What Users Are Saying

“I like the taste and I have lost weight. Does what it says if you follow the directions.”

“These taste horrible. Have had 1/2 bar only.”

“I use the Optislim products – protein bars, shakes and food to lose a few pounds if I’ve overindulged; I’ve used the protein bars for breakfast for over a year as I’ve never been a fan of breakfast and the bars taste great (very natural flavour) and satisfy me till lunchtime. I’ve tried a number of meal replacement programmes over the years and have been impressed with both the taste and the feeling of being satisfied after a meal from the Optislim range.

As this range is marketed as a Very Low Calorie Diet (VLCD), it stresses the importance of including a certain quantity of vegetables, oil and water daily if one is using the programme as the major source of nutrition. However, were I to use the range as the major source of nutrition for a period of more than a few days or to lose a significant amount of weight, I would consult a medical provider particularly if there are were existing health conditions. Apart from that proviso, I think the Optislim range is excellent.”

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 Dietspotlight readers gain access to a free trial offer for a limited time.

Learn More About Noom »
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OptiSlim

Q:
What is OptiSlim?
A:

Optislim, a Very Low-Calorie Diet (VLCD) from Australia, serves as a nutritionally balanced total meal replacement for individuals seeking an effective weight management program. The manufacturer claims that by consuming three sachets daily, it meets all essential nutritional requirements, boasting 25 vitamins and minerals. Initially developed to aid obese patients in weight reduction, this VLCD involves complete meal replacement, with the company asserting that the meals are both palatable and affordable.

Q:
What are the side effects of Optislim?
A:

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

Q:
Does OptiSlim work?
A:

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.

Q:
What is the price of Optislim?
A:

-Optislim VLCD Meal Replacement Shake Chocolate $42.99
-Optislim VLCD Meal Replacement Shake Banana $42.99
-Optislim VLCD Meal Replacement Shake Banana $42.99
-Optislim VLCD Shake Variety Pack – 21 Meals $49.99
-Optislim VLCD Bars Peanut Butter $23.99

Q:
What is the difference between Optifast and Optislim?
A:

While both Optislim and Optifast offer branded meal replacement products, the primary distinction lies in the absence of a medically supervised program accompanying Optislim supplements. Optislim shares similarities with Optifast, but it does not provide a supervised program, making it important for users to be aware of this difference.

Q:
Where can I buy OptiSlim?
A:

OptiSlim can be purchased using their Official Site.

Q:
What is the Optislim diet?
A:

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.

Q:
Can you have Optislim with milk?
A:

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.

Q:
Who owns Optislim?
A:

Optislim is owned by Optipharm, a private Australian company.

Q:
How fast do you lose weight on Optislim?
A:

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.

Q:
What types of programs are offered by OptiSlim?
A:

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

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

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

Q:
Are OptiSlim meal replacement products tasty?
A:

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.

Q:
Is OptiSlim monitored by a licensed medical professional?
A:

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

Q:
How can I contact OptiSlim customer service?
A:

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

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

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.

Q:
Can you lose weight with meal replacements?
A:

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.

Q:
Is there any scientific evidence to support OptiSlim claims?
A:

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.

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

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

Q:
Can Optislim be considered an effective weight-loss solution?
A:

Generally, individuals following the Optislim meal replacement program can anticipate a weight loss of about 2.2 pounds per week, according to the company. However, the actual results may vary depending on factors such as starting weight, age, metabolism, medical conditions, exercise routine, and the number of meals replaced. It is advisable to consider these variables when evaluating the program’s effectiveness for individual weight loss goals.

Q:
Is Optislim strictly a meal replacement, and what products are offered?
A:

Optislim offers a diverse range of meal replacement products, including shakes, bars, soups, snacks, and healthy meals suitable for Very Low-Calorie Diets (VLCD) and Low-Calorie Diets (LCD). These products have undergone clinical testing, demonstrating efficacy in facilitating rapid weight loss, as claimed by the manufacturer.

Q:
How many meals should I replace, and what are the recommended phases?
A:

The Optislim VLCD range is adaptable, featuring three phases to align with individual weight loss goals. These include Rapid Weight Loss (replace 3 meals a day), Steady Weight Loss (replace 2 meals a day), and Easy Maintenance (replace 1 meal a day), allowing users to customize their approach based on their objectives.

Q:
Can I consume coffee or tea while on the Optislim program, and are there any considerations?
A:

Coffee or tea consumption is permissible on the Optislim program, but it’s important to exercise moderation, considering the additional calories introduced. Suggestions to minimize caloric impact include reducing sugar and milk, opting for skim milk, or using sugar alternatives like ‘Equal’ or ‘Sugarine.’

Q:
How long can one stay on Optislim, and what are the recommended guidelines?
A:

The Optislim program recommends replacing all three meals with VLCD products, with a maximum daily calorie intake of 800 calories during the Rapid Weight Loss phase. This phase can be followed for 3 to 12 weeks under medical supervision. Individuals are advised to consult a healthcare professional before embarking on this phase.

Q:
What is the sugar content in Optislim?
A:

According to the nutritional information provided, Optislim contains 13.7g of sugar per serving (43g) and 31.9g per 100g. Users should consider this information when evaluating the nutritional profile of the product.

71 OptiSlim Reviews

  • skim milk
    sakshi (Verified Purchase)

    just want to know if optislim shakes can be taken with cold skim milk instead of water because my friend is using another brand shake with skim milk and she fells really full than i do with water

    Reply
  • Your Name

    I’m on optifast one shake per day and losing half kilo per week. Great stuff very pleased. Will be starting on two shakes a day.

    Reply
  • Suzie

    Hi, I’m 47 years old and have been told I need to lose 40kg. I gave up drinking and smoking 2 weeks ago and I’m proud of that but I’ve struggled with my weight my whole life. After getting a kick in the pants from my doctor, I really want to be healthy and happy. I’m giving Optislim a go. I think it’s great so far (4 days in) because in don’t have to weigh anything and obsess over food. I can have my shake and get on with something non food related. I have a big bowl of steamed vegies in the evening as well. I have lost 1.2kg in 4 days. Another benefit is that for years I’ve suffered with gastric reflux and heartburn and now, I’m glad to say it’s gone!

    Reply
  • Optislim Smoothie Shake
    Cathy Swan (Verified Purchase)

    My husband and I make a fruit and spinach smoothie with optislim shakes and they are delicious! In the mornings we have the green veg, celery, Apple, etc with vanilla shake and in the evening, mixed berries lots of ice with strawberry shakes! We are losing weight steadily!! ?

    Reply
  • OptiSlim
    Your Name

    Where to purchase OptiSlim. In India mumbai

    Reply
    • Stephen (Editor)

      It may not be available in retail stores there.

      Reply
  • Ratio of Weight Loss
    priya

    Hi
    I m from india and from today itself i started optislim tablets
    My weight is inbetween 75 to 80kg and my height is 153 so pls let me know to refer my height how many kg i loss
    Also in a week what is ratio to loss the weight to using this tablet

    Reply
  • Caffeine in Shakes
    Rachael Nolan (Verified Purchase)

    Hi i found out the shakes contain caffeine. Can you tell me how many mg of caffeine per serve? I might still be able to take them if its not too high..

    Reply
  • I have kidney failure
    halina flak

    Just recievef my order and was told I was not able to take this products ad I have kidney failure and was told by drs and chemist that im unable to have the product could anyone please get back to me so I can send this back

    Reply
  • Is it safe for a 16 years girl?
    Kerrie

    My 16 year old daughter wants to try optislim, is it safe for her, she is not fat just wants to lost a little off her stomach

    Reply
    • Gail

      she just needs some tummy exercise not vlcd !

      Reply
  • Finding is easy, slowly losing 1kg per week.
    Maura (Verified Purchase)

    I’ve been on Optislim for almost four weeks, finding is easy, slowly losing 1kg per week. Headache the first two days but increased water intake, feeling great and never hungry like when on other diets. I have shake for breakfast and lunch, small meal for dinner. I can’t exercise. Still enjoying coffee & tea on low fat milk, no sugar or sweetener.

    Reply
    • Cathy

      I am just starting the Optislim VLCD, I am struggling to understand exactly the regimen to follow, can you give me a run down so that I know I am doing it correctly. Is it 3 meals a day being replaced with bars/shakes or are there snack times involved, I am very confused and dont find the website at all helpful

      Reply
      • Carlina

        I’m having three product’s a day.
        Shake for breakfast, sometimes blended with frozen berries.
        Salad and chicken, fish or meat for one or two meals a day. But only non starchy veg. No pumpkin potatoes parsnip corn etc. Salad once a day and sometimes cooked veg once per day. A diet bar for after noon snack.
        A diet dessert like optifast lemon or chocolate pudding.
        Optislim and optifast are the same really so interchangeable.
        Small serves of protein food and mininum 2 cups veg per day.
        As much diet drink as I like.

        Reply
    • Your Name

      I had a headache too but I also cold turkey went off caffeine cos I can’t do coffee without sugar. Your headache might not be due to actual ingredients. Might be cos of something your not having any more.

      Reply
  • Hated the product.
    jacquie (Verified Purchase)

    Husband using Optislim been vomiting and dizzy

    Reply
    • Gail

      Your headaches are caused by going into ketosis you just need to drink more water and should pass after a few days!

      Reply
    • bree

      Iv just started talking it doctors orders as im struggling to lose my baby weight..iv been vomiting and really bad heart burn and feeling sick and no energy I hope it passes

      Reply
      • Your Name

        Tell your doctor

        Reply
  • Does it affect my liver?
    Eve

    I’m about to have a gastric sleeve op in less than 2 weeks, most other patients are on Optifast but I am on Optislim, does Optislim reduce the size of the liver the same way Optifast does??

    Reply
    • Kathy

      I used optislim before gastric sleeve op and it worked. I followed doctors instructions and lost weight quickly to help with op. I have no experience with optfast.

      Reply
  • Where to buy in UAE
    Moona

    Whear i will buy in uae

    Reply
    • Your Name

      Depends where you live
      Local pharmacy perhaps

      Reply
  • how much wight should i lose a week
    Anonymous (Verified Purchase)

    hi i have just started optislim lcd today how much wight should i lose a week (average)

    Reply
  • How long that you can take it
    Jarintip

    Hi How long that you can take it? i have been take optislim for 2 years on and off.
    Thank you

    Reply
  • Where can I get the Optislim recepie Book in Queensland
    Elaine stevens

    Where can I get the Optislim recepie Book in Queensland I can’t seem to be able to get it anywhere.

    Reply
  • can I purchase optislim in Dubai?
    svetlana

    can I purchase optislim in Dubai?

    Reply
  • Where can i purchase optislim tablets.
    patricia armstrong

    where can i purchase optislim max tablets.thank you

    Reply
    • Optislim Customer Care

      Hi Patricia.
      Optislim MAX tablets are available at My Chemist and Chemist Warehouse stores throughout Australia as well as Discount Drug Stores, Pharmacy Select Stores, Blooms The Chemist.
      Kind Regards,
      Optislim Customer Care

      Reply
      • sonia

        can i have this with soy or rice milk instead of water i am not fat just wanna get rid of a kilo or 2??? I work out and run twice a day so will maybe just replace my evening meal and the odd lunch. always have a healthy breaky!!

        Reply
        • Your Name

          You don’t need it then. Just have your skim milk and a few nuts instead. Cut the cars.

          Reply
  • Are optifast and optislim of same company
    millie

    Are optifast and optislim one and the same company?

    Reply
    • Optislim Customer Care

      Hi Millie.
      Optislim is a wholly owned Australian company and it’s products are manufactured in Australia. Optifast is owned by Nestle and their products are made in Germany.
      Kind Regards,
      Optislim Customer Care

      Reply
    • Koy

      No. Optislim is an Australian company, and Optifast is made from an American company, Nestle

      Reply
  • Does theOptiSlim shake contain any fibre? and if not, why not?
    Polly

    Does theOptiSlim shake contain any fibre? and if not, why not?

    Reply
    • Christina

      Yes, you’ll find that it will contain inulin, a fibre that promotes bowl movements. Some people will experience runny stools as a result but I think they’d be in the minority, shakes tend to bind you up so the inulin counteracts that a bit.

      Reply
      • Stacey

        Too many negatives. Why put inulin in the first place. That then needs to be countered by binders? That in itse

        Reply
      • Stacey

        Why put inulin that then needs to be bound up. Too many negatives with the product. I was going to try it until I read the reviews. Better to stick to fresh food that you prepare yourself

        Reply
      • Anonymous

        Really
        What ever ❣️

        Reply
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