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How Many Smoothies a Day? A Guide to Healthy Sipping for Weight Loss

If you’ve been following a health and wellness journey even casually, you would know that smoothies aren’t just a passing wellness trend. Instead, they’ve become a staple for busy millennials and Gen Z professionals who are trying to find a balance between convenience, taste, and health. Whether you’re trying to shed a few pounds, detox after a weekend of indulgence, or just looking to add more nutrients to your diet, smoothies are your new best friend that may offer the perfect solution. 

The combination of fresh fruits, leafy greens, and protein-packed add-ons makes for a delicious and conveniently portable meal. But one question crosses everyone’s mind – are smoothies really the ultimate health hack, or are there hidden downsides? And perhaps most importantly, people often ask, how many smoothies a day should one consume to stay healthy?

The popularity of smoothies has been skyrocketing ever since the “clean eating” movement gained cultural momentum. Social media is brimming with influencers who are flaunting their colorful smoothie bowls or even quick meal-prep videos showing the benefits of this liquid gold. But it needs to be said that while smoothies may seem like a one-size-fits-all health solution, the truth really lies in the ingredients, portion sizes, and the quality of your diet overall.

For example, a smoothie packed with greens, berries, and almond milk can be a low-calorie and nutrient-heavy powerhouse. However, if you throw in sweetened yogurt, sugary juices, or a couple servings of peanut butter, you have a calorie bomb in a cup on your hands. This balance makes smoothies both a hero and a potential saboteur on your weight-loss journey.

Can you replace meals with a smoothie though? According to health experts at the NHS (1), structured meal-replacement plans, such as a 3-day smoothie detox or even a 7-day smoothie detox plan, can help you reset some eating habits or kickstart weight loss. However, long-term success really lies in variety. Your body always needs a mix of textures and nutrients, which smoothies alone can’t provide.

When it comes to the question of smoothies and weight loss, research published in the Journal of Nutritional Biochemistry (2) suggests that smoothies with metabolism-boosting ingredients, such as green tea powder and ginger can help in burning fat. On the flip side of this, overloading on calorie-heavy ingredients and even healthy ones such as avocados and nuts can work against your goals.

Buckle up as we unpack everything you need to know about incorporating smoothies into your routine – from the best ingredients for weight loss, to the number of smoothies you can have each day, and what to avoid in those smoothie recipes. Whether you’re looking for a detox smoothie for a flat stomach or a vegan smoothie for weight loss, we’ve got you covered.

So, before you hit that blender, take a moment to learn how to make smoothies work for you, not against you. 

Can I Lose Weight by Drinking Smoothies?

The answer is yes, smoothies can be effective for weight-loss, but they need to be consumed mindfully. Weight loss happens by lowering caloric intake and by burning more calories than you usually consume. A balanced smoothie helps you achieve this by being a meal replacement with low calories and high nutrients. 

Research by Harvard Health (3) suggests that diets that are high in fruits, vegetables, and lean protein help weight loss and improve metabolism. Replacing breakfast foods such as pancakes or pastries that are high in calories with a metabolism-boosting smoothie made from spinach, banana, almond milk, and protein powder can reduce your calorie intake on the daily without compromising nutrition quality.

However, it’s important to note that not all smoothies will be created with the appropriate calorie and nutrient content to maximize weight-loss benefits. Therefore, you should:

  • Increase your focus on fiber-rich fruits such as berries or apples.
  • Add protein sources to your smoothie, such as Greek yogurt or pea protein powder.
  • Try to avoid calorie traps such as sweetened yogurts, fruit juices, or added amounts of nut butter.

Can I Just Drink Smoothies Instead of Eating?

While smoothies can definitely help you replace one or two meals a day, a sole reliance on them isn’t ideal for long-term health goals. According to the NHS UK (4), consuming whole foods is essential for gaining dietary fiber, variety, and satiety. Chewing helps activate satiety hormones, which makes you feel fuller for longer without craving food.

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Short-term meal replacement plans, such as a 3-day smoothie detox plan or a 7-day smoothie detox plan, can help jumpstart your weight loss journey, but they need to be balanced with a stable amount of whole foods. Here’s how you can have filling and low-calorie meals throughout the day:

  • Breakfast: enjoy a high-protein oat smoothie for weight loss.
  • Lunch: relish a colorful salad with grilled chicken, vegetables, or tofu.
  • Dinner: end your day with a vegetable-based detox smoothie for a flat stomach.

A balanced approach such as that above will help you keep your energy levels steady and reduce any chances of nutrient deficiencies.

Read more: Are Smoothies Good for Weight Loss or Just a Sugar Trap?

What Is the Best Liquid for Smoothies for Weight Loss?

The liquid base you choose can have a significant impact on your smoothie’s calorie content. For weight loss, unsweetened almond milk, water, or green tea are some excellent options. Research published in the Journal of Nutritional Biochemistry (5) highlights the potential of green tea catechins to burn fat, which makes it an ideal eleht loss: try water, unsweetened almond milk, or green tea.

  • Occasional treat: coconut water or low-fat dairy milk.
  • Avoid: sweetened juices or flavored plant-based milks with added sugars.

A smoothie with water, spinach, frozen mango, and a scoop of protein powder can be a refreshing, low-calorie choice. At the same time, a dairy-based smoothie with syrups or sweeteners might pack more calories than intended.

Are Smoothies Healthier with Milk or Water?

Whether you choose milk or water will depend on your own health goals. For weight loss, water or unsweetened plant-based milks such as almond or oat milk are better options as they generally are lower in calories. Dairy milk, while nutrient-rich, contains natural sugars that may not align with calorie-reduction goals: 

  • Milk-based smoothie: ideal for post-workout recovery, offering protein and carbs to replenish energy.
  • Water-based smoothie: perfect for low-calorie, hydrating, and detox-focused options.

Which Fruits Are Best for Weight Loss?

Not all fruits are equal when it comes to weight loss. The best fruits for smoothies are those that are low in natural sugars and high in fiber as they help keep you full and satisfied.

Some of the top picks include:

  1. Berries (strawberries, blueberries, raspberries): low-calorie, high-antioxidant powerhouses.
  2. Citrus fruits (grapefruit, oranges): hydrating and metabolism-boosting
  3. Apples: a fiber-rich option that adds bulk to smoothies.
  4. Kiwi: packed with vitamin C and digestion-enhancing properties.
  5. Bananas: great for energy and creaminess; stick to half a banana to control sugar.

What to Add to a Smoothie to Burn Fat

Fat-burning ingredients make your smoothie more effective for weight loss. Try the following options: 

  • Leafy greens (spinach, kale): low in calories, high in nutrients.
  • Green tea matcha powder: proven to enhance fat oxidation.
  • Chia seeds: a fiber-packed addition that promotes satiety.
  • Cinnamon: regulates blood sugar levels and reduces cravings.
  • Protein powder: helps maintain muscle mass during calorie restriction.

Pro tip: A smoothie with unsweetened almond milk, spinach, green tea powder, and a handful of frozen berries is both delicious and effective.

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How Many Smoothies a Day Is Healthy?

The ideal number is 1–2 smoothies per day. One can replace a meal, while the other can serve as a snack or a post-workout option to satiate your cravings. Drinking more than this can lead to your body having an excessive sugar intake, even from natural sources such as fruit.

According to the National Institute of Diabetes and Digestive and Kidney Diseases (6), consuming too many liquid calories can lead to overconsumption later, as liquids don’t activate satiety hormones as effectively as solid foods.

The BetterMe: Health Coaching app will provide you with a host of fat-frying fitness routines that’ll scare the extra pounds away and turn your body into a masterpiece! Get your life moving in the right direction with BetterMe!

What to Avoid in Smoothies for Weight Loss

Avoid these common mistakes to keep your smoothies weight-loss-friendly:

  1. Sugary add-ins: sweetened yogurts, syrups, or fruit juices.
  2. Too much fruit: stick to 1–2 servings per smoothie to avoid excess sugar.
  3. Excessive nut butters: use no more than a tablespoon.
  4. High-calorie protein powders: choose clean, low-sugar options.

Read more: Vegetable Smoothies Diet: Is It Effective For Weight Loss?

How to Lose Weight in 2 Weeks on a Smoothie Diet

A short-term smoothie diet can be effective, but it requires planning and balance. Replace one or two meals a day with nutrient-dense smoothies:

  • Breakfast: vegan smoothie for weight loss with almond milk, spinach, and chia seeds.
  • Dinner: detox smoothie for clear skin with cucumber, mint, and green tea.

Pair your smoothies with whole-food snacks and light meals to ensure adequate protein and fiber. Exercise is essential for maximizing results.

Frequently Asked Questions

  • Are smoothies for weight gain or weight loss?

Smoothies can help in losing weight when it’s made with low-calorie ingredients that are high in nutrients. Overloading them with sugar or sweeteners will counteract your weight loss efforts and won’t help the cause. 

  • Which fruit is best for a flat tummy?

Berries such as blueberries and raspberries are low in calories and high in antioxidants, which makes them great for reducing bloating and supporting fat loss.

  • Should I put yogurt in my smoothie?

Yes, but you should use unsweetened yogurt as this is an excellent source of protein and probiotics for a healthier and low-calorie smoothie.

  • Is blending a banana better than eating it?

Blending doesn’t change its nutritional value, but portion control is the key to managing your sugar intake.

The Bottom Line

Smoothies are an excellent addition to your weight-loss plan if you make them with the right ingredients and consume them in moderation according to your diet plans. Focusing on nutrient-heavy options, balancing them with whole foods, and avoiding added sugars will definitely help you achieve sustainable, long-term results while being a delicious and convenient way to fuel your day.

DISCLAIMER:

This article is intended for general informational purposes only and does not serve to address individual circumstances. It is not a substitute for professional advice or help and should not be relied on for making any kind of decision-making. Any action taken as a direct or indirect result of the information in this article is entirely at your own risk and is your sole responsibility.

BetterMe, its content staff, and its medical advisors accept no responsibility for inaccuracies, errors, misstatements, inconsistencies, or omissions and specifically disclaim any liability, loss or risk, personal, professional or otherwise, which may be incurred as a consequence, directly or indirectly, of the use and/or application of any content.

You should always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or your specific situation. Never disregard professional medical advice or delay seeking it because of BetterMe content. If you suspect or think you may have a medical emergency, call your doctor.

SOURCES:

  1. NHS soups and shakes diet helps thousands shed the pounds (2022, NHS England)
  2. Association of Dietary Patterns With Mortality From Cardiovascular Diseases (2023, American Journal of Clinical Nutrition)
  3. The DASH Diet: A great way to eat foods that are healthy and delicious (2019, Harvard Health Blog)
  4. How to get more fibre into your diet (2023, NHS)
  5. Fiber Intake and Risk of Mortality: A Prospective Cohort Study (2022, Journal of Nutrition)
  6. Healthy Eating and Physical Activity for Life (2023, National Institute of Diabetes and Digestive and Kidney Diseases)
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