Optislim: The Ultimate Guide to Calorie-Controlled Diets for Healthy Weight Loss

At Optislim, we understand that with so many calorie-controlled diets available, knowing which one to follow can be confusing. That’s why we’ve created this guide to help you understand the different diets and choose one that is right for you.
Put simply, calorie-controlled diets are essential for weight loss because they help you create a calorie deficit – where your body consumes more energy than it gets from food. This deficit is the key to successful weight loss.

Optislim has helped thousands of Kiwis lose and maintain their weight through our calorie-controlled meal replacement shakes, bars, and soups. Our calorie-controlled meals are designed to simplify calorie counting and provide the necessary nutrition for a low-calorie diet. With Optislim, you can achieve your weight loss goals quickly and safely.

We create our calorie-controlled meals to supply you with all the essential nutrients your body needs, all while keeping calories low. We carefully formulate each Optislim product to guarantee you receive the correct balance of proteins, carbohydrates, fats, and essential vitamins and minerals. By following the Optislim programme, you can actively manage your calorie intake and achieve sustainable weight loss. Optislim products are also designed to keep you satisfied and full, reducing the likelihood of unhealthy snacking or overeating.

The Benefits of Calorie-Controlled Diets for Weight Loss

Calorie-controlled diets have been proven to be an effective way to lose weight and improve overall health.

Here are some additional benefits of calorie-controlled diets:

✓ Improved Portion Control

A calorie-controlled diet helps you develop a healthier mindset to manage your portion sizes effectively.

✓ Stabilised Blood Sugar Levels

Regulating calorie intake can help stabilise your blood sugar levels.

✓ Increased Energy

Calorie-controlled diets can provide more sustained and consistent energy levels by promoting better blood sugar control and enhancing metabolic efficiency.

✓ Reduced Risk of Chronic Diseases

Maintaining a healthy weight through calorie control can lower the risk of diabetes and heart disease.

✓ Enhanced Metabolic Health

Calorie control can boost metabolic efficiency.

✓ Balanced Nutrient Intake

Calorie-controlled diets encourage a balanced intake of essential nutrients.

✓ Flexibility

Unlike fad diets that cut out entire food groups, calorie-controlled diets offer diverse foods. This allows you to indulge in your favourite treats in moderation while staying within your calorie limits.

✓ Convenient & Structured Approach

Calorie-controlled diets offer a structured approach to weight loss, particularly helpful for those who struggle with portion control or unconscious eating. Tracking your calories increases awareness about your food choices.

✓ Customised to Suit Dietary Restrictions

Whether you’re a vegetarian, vegan, or have food allergies, there are customisable options available, so you won’t feel deprived or restricted. This makes it easier to stick to the plan in the long run.

✓ Sustainable Long-Term Result

Unlike fad diets that often restrict certain food groups or severely limit your calorie intake, calorie-controlled diets promote a sustainable lifestyle.

Understanding Calorie Counting and Portion Control

Calorie counting is a fundamental element of calorie-controlled diets, where you track your daily calorie intake to maintain a calorie deficit. Optislim simplifies calorie monitoring by providing clear calorie information for each product.

Portion control is another key aspect, ensuring you eat appropriate serving sizes to avoid excess calorie intake. Optislim products are conveniently portion-controlled, removing the guesswork and helping you stay within your calorie limits to reach your weight loss goals.

Tips to Help Calorie Counting

Calorie counting is an effective way to manage your weight and monitor your nutritional intake. Here are five tips to help you with calorie counting:
1. Use a calorie-tracking app to see calories at a glance.
2. Read food labels. These provide valuable information about calories, recommended serving sizes and macronutrients.
3. Measure portions with a kitchen scale or measuring cups to measure food portions accurately.
4. Plan your meals in advance to ensure you are making healthier choices and staying within your calorie limits
5. Choose from Optislim’s healthy range of calorie-controlled meal replacement options.

Tips to Help Portion Control

Portion control is essential for managing calorie intake and maintaining a healthy diet. Here are five tips to help you control your food portions:
1. Use smaller plates. This can trick your brain into feeling satisfied with smaller portions.
2. Measure your portions with kitchen scales or measuring cups.

3. Know your serving sizes. Familiarise yourself with recommended sizes for different foods to help you understand what constitutes a proper portion. For example, a serving of meat should be roughly the size of a deck of cards, while a serving of pasta should be about the size of a tennis ball.

4. Fill up on vegetables. Make vegetables a prominent part of your meal. Vegetables are typically lower in calories and high in fibre, which can help you feel full and satisfied with fewer calories.

5. Choose Optislim’s calorie-controlled meals with your portion size already worked out for you.

By combining calorie counting and portion control, you can effectively manage your caloric intake and create a sustainable calorie deficit. This will set you on the path to achieving your weight loss goals.

The Average Recommended Daily Calorie Intake

The average recommended daily calorie intake can vary depending on several factors, including age, activity level, metabolism, and individual health goals. However, general guidelines are often used as a starting point:

Adult Women:

● A sedentary adult woman may need about 1,800 to 2,400 calories daily to maintain her weight.

● Active women with higher energy expenditure may require more calories, sometimes up to 2,400 to 3,000 calories daily.

Adult Men:
● A sedentary adult man may need about 2,200 to 3,000 calories daily to maintain weight.

● Active men with higher energy expenditure may require more calories, sometimes up to 2,800 to 3,800 calories daily.

Which Calorie-Controlled Diet is Best for Weight Loss?

Diet 800 Calories A Day

An 800 calories a day diet plan involves consuming around 800 calories daily, making it an extremely low-calorie diet (VLCD). Typically recommended for short-term use under medical supervision, it’s not intended for long-term weight loss or sustainable eating.

Recommended Length of Time Following This Diet

You may follow an 800 calories a day diet for several weeks to months, depending on your health objectives and medical conditions. However, it’s crucial to consult with a healthcare professional before starting such a restrictive diet, as it carries potential health risks and should only be undertaken with proper guidance.

Diet 1200 Calories A Day

A 1200-calorie diet plan involves consuming around 1200 calories daily, making it a low-calorie diet typically used for short-term weight loss. The duration of following this plan should depend on individual goals, health status, and activity level.

Recommended Length of Time Following This Diet

While a 1200-calorie diet is generally considered safe for short-term weight loss, consulting with a healthcare professional or registered dietitian is important before beginning any calorie-restricted diet.

Prolonged use of a 1200-calorie diet may not be suitable for everyone, potentially leading to nutrient deficiencies and other health issues. Therefore, it’s crucial to approach this diet with caution and consider transitioning to a more balanced and sustainable eating plan once your weight loss goals are achieved.

Diet 1500 Calories A Day

A 1500-calorie diet plan involves consuming around 1500 calories per day, making it a moderate-calorie diet suitable for weight management, depending on your specific needs, goals, and activity level. It’s commonly used for gradual weight loss or maintaining a healthy weight.

Recommended Length of Time Following This Diet

The duration of following a 1500-calorie diet depends on individual goals and circumstances. Some may find it sustainable as a long-term eating plan, especially when combined with regular physical activity. Others may use it as a starting point for weight loss and adjust their calorie intake as they progress.

Diet 1800 Calories A Day

An 1800-calorie diet plan involves consuming around 1800 calories daily, making it a moderate-calorie diet suitable for maintaining a healthy weight. Depending on your specific needs, goals, and activity level, it may also be used for gradual weight loss.

Recommended Length of Time Following This Diet

The duration of following an 1800-calorie diet depends on individual goals and circumstances. It can serve as a sustainable long-term eating plan for many people, especially when combined with regular physical activity. Some may use it as a starting point for weight loss and adjust their calorie intake as they progress.

Benefits of Optislim’s Meal Replacement Products as Part of Your Calorie-Controlled Diet

✓ Convenient

Optislim’s calorie-controlled meals provide portion-controlled, nutritionally balanced alternatives to regular meals, simplifying calorie management and promoting consistency.

✓ Scientifically Formulated for Weight Loss

Our calorie-controlled meals are formulated to provide you with the essential nutrients your body needs while helping you control your caloric intake.

✓ Carefully Crafted Meal Replacements

Each shake or bar is nutritionally balanced, containing a precise number of calories, carbohydrates, protein, and fat. This ensures your body receives the nutrients to function optimally while promoting weight loss. Our calorie-controlled meals are fortified with vitamins and minerals to support overall health and well-being.

✓ Leaves You Feeling Fuller for Longer

Optislim meal replacement shakes leave you feeling fuller for longer, thanks to their high protein content and the unique ingredient OptiBiome, which helps control hunger and promote satiety.

✓ Variety of Calorie-Controlled Meals

With Optislim, you can choose from a range of meal replacement products that suit your preferences and dietary requirements. Whether you prefer shakes, bars, or soups, our extensive product range ensures you can find something you enjoy while still achieving your weight loss goals.

Choosing the Right Optislim Plan for Your Weight Loss Goals

At Optislim, we understand that everyone’s weight loss journey is unique. That’s why we offer a range of plans to suit different goals and lifestyles. Whether you’re looking to lose a few kilos or undergo a significant transformation, we have a plan to help you achieve your goals. Here are the main Optislim plans available:

Optislim LCD (Low-Calorie Diet) Plan

The LCD plan is our flagship program designed for rapid weight loss. It involves replacing all three meals with Optislim meal replacement products, such as shakes, bars, or soups. This plan is ideal for those looking to kickstart their weight loss journey or for individuals with a significant amount of weight to lose.

Optislim VLCD (Very Low-Calorie Diet) Plan

The VLCD plan is a more intensive program designed for individuals with a higher BMI or those preparing for weight loss surgery. This plan involves replacing all three meals and snacks with Optislim products, providing a very low-calorie intake. The VLCD plan should only be undertaken under the guidance of a healthcare professional.

Optislim Flexi Program

The Flexi program is a more flexible approach that allows you to replace one or two meals with Optislim products. This plan is suitable for individuals who prefer a more gradual weight loss approach or those looking to maintain weight after achieving their goals. The Flexi program offers the convenience and benefits of calorie-controlled meal replacements while allowing you to enjoy regular meals.

Meal Planning and Preparation with Optislim

Meal planning and preparation are crucial for the success of any diet meal plan. By planning and preparing your meals, you can ensure that you have healthy, low-calorie options readily available. This can help you avoid making impulsive and unhealthy food choices when you’re hungry or short on time. Optislim meal replacements are ideal to incorporate as part of your calorie-controlled diet and can be used as meal replacements or as part of a balanced meal.
Combining Optislim products with fresh and nutritious ingredients can create delicious and satisfying meals that support your weight loss efforts.

Here are some tips to help you effectively plan and prepare your meals

✓ Create a Weekly Meal Plan

Start by creating a weekly meal plan that incorporates Optislim calorie-controlled meals as well as regular meals.

✓ Calculate Your Daily Calorie Intake

Calculating your calories ahead of time can help distribute your calories throughout the day to keep yourself satisfied.

✓ Make a Shopping List

Making a shopping list and sticking to it will help avoid impulse purchases.

✓ Meal Prep in Advance

Take some time each week to prepare your meals in advance. Having pre-prepared meals and ingredients on hand can save time and make healthier choices when you’re pressed for time.

Potential Challenges with Calorie-Controlled Diets and How to Overcome Them

Calorie-controlled diets can be effective for weight management and achieving specific health goals, but they also come with potential challenges, including:

Feeling Hungry

Reducing calorie intake can often lead to increased feelings of hunger, making it challenging to stick to your diet. However, thanks to Optislim’s special formulation, you’ll experience a sense of fullness and satisfaction after your meals.

Nutrient Deficiencies

Some calorie-controlled diets can result in nutrient deficiencies. Optislim’s products are nutritionally balanced, ensuring you get all the necessary nutrients.

Muscle Loss

Calorie-restricted diets may lead to muscle loss in addition to fat loss, especially if protein intake is inadequate. Optislim’s meal replacements are high in protein, aiding muscle repair and retention.


Some calorie-controlled diets may not be sustainable long-term, leading to weight regain when returning to regular eating habits. Optislim provides diverse meal replacement options, so sticking to your diet is easier.

Low-Calorie Snack Ideas

When following a calorie-controlled diet, it’s essential to choose healthy snacks that are satisfying and nutrient-dense. Here are some ideas for healthy snacks:

✓ Fresh Fruits

Snack on whole fruits like apples, berries, oranges, or sliced cucumbers. They’re low in calories and provide vitamins and fibre.

✓ Greek Yogurt

Opt for low-fat or non-fat Greek yogurt, which is high in protein and can help keep you feeling full. Add a drizzle of honey for flavour.

✓ Mixed Natural Unsalted Nuts

Enjoy unsalted, mixed nuts, like almonds, walnuts, or pistachios.

✓ Dips

Hummus, Tzatziki or Salsa with carrot sticks, celery or low-fat rice crackers provide a satisfying and nutritious snack.

✓ Air-Popped Popcorn

Popcorn is a whole grain that is low calorie and high fibre.

✓ Hard Boiled Eggs

Eggs are a great source of protein and a satisfying snack.

✓ Rice Cakes

Choose whole-grain rice cakes and spread with almond, cashew or peanut butter.

✓ Steamed Edamame

Edamame provides a protein-rich snack seasoned with sea salt or a sprinkle of sesame seeds.

✓ Tinned Tuna or Salmon in Brine or Water

Spread canned tuna or salmon with Greek yogurt on whole-grain crackers for a protein-packed snack.

✓ Fruit Smoothies

Blend a protein source like Greek yogurt or protein powder with your favourite fruits and a handful of spinach for a nutritious and filling snack.

For more tasty low-calorie meal recipes, click here https://www.optislim.co.nz/blog/

Success Stories and Testimonials from Optislim Users

At Optislim, we take great pride in the success stories of our users. We have helped thousands of Kiwis achieve their weight loss goals and transform their lives. Here are some inspiring success stories and testimonials from real Optislim users:

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Optislim provides a comprehensive and effective solution for individuals seeking to lose weight and improve their health. Following a calorie-controlled diet with Optislim products can create a calorie deficit and achieve sustainable weight loss. You can reach your weight loss goals and maintain a healthier lifestyle with careful planning, preparation, and support. So why wait? Start your Optislim journey today and say hello to a happier, healthier you!


Q: Is Optislim suitable for vegetarians or vegans?

A: Optislim offers a range of vegetarian and vegan-friendly products suitable for individuals following a plant-based diet. These products are formulated to provide the necessary nutrients while still being low in calories.

Q: Can I drink alcohol while on the Optislim program?

A: Alcohol is high in calories and can hinder weight loss progress. It’s best to limit or avoid alcohol while on the Optislim program to maximise your results.

Q: Can I still enjoy my favourite foods on a calorie-controlled diet?

A: Yes, you can still enjoy your favourite foods on a calorie-controlled diet, but it’s important to do so in moderation and with awareness of your calorie intake.


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