Looking for healthy smoothie add-ins that can boost the nutritional value of your fav shakes? Adding just one extra ingredient can make a dramatic difference to how healthy your shake or smoothie is.


The right add-ins can increase vitamin, mineral, and macronutrient levels. But which ones should you focus on?


In this article – we share 7 healthy smoothie add-ins that can increase nutrients and maximise health benefits.


1 – Protein Powder

Adding protein powder to your smoothie is a quick and easy way to make it healthier. A single scoop of powder will typically add 20g of protein to your shake – that’s over 30% of most people’s daily requirement!


Plain or vanilla flavoured powder will work with most smoothie ingredients since they have a neutral taste. Look for brands that have a low-sugar content so that you don’t accidentally add unnecessary calories.


2 – Ground Flaxseed

Flaxseed is packed with vitamins and minerals so it makes a great healthy addition to smoothies. It’s a great source of polyunsaturated fatty acids and omega-3 fatty acids in particular. The latter are typically found in fish oils so flaxseed is an ideal alternative for people who don’t eat animal products. 


You can buy these seeds in a ground or powder form which blend into smoothies really well. They won’t affect the texture but can add a delicious nutty flavour. Flaxseed works really well in banana and PB smoothies or those with a nut milk base.


3 – Fibre Powder

I had no idea fibre powder even existed until a few months ago. A friend asked for some nutritional advice and I found this genius product while researching an answer. It’s a super-healthy add-in for smoothies, porridge, and baking too.


Most of us don’t eat enough fibre. Increasing your intake can aid digestion, reduce cholesterol, and decrease the risk of cancer and cardiovascular disease. We should be consuming 30g a day so a spoonful of fibre powder in your smoothie can help with this. 


4 – Spinach & Kale

Leafy greens are a really healthy add-in for any smoothie. They’re packed with vitamins and minerals like vitamin K and iron. Plus they don’t taste of anything so won’t affect the flavour of your shake.


Adding a handful of spinach or kale to your smoothie is a quick and easy way to boost its nutrition. You can use fresh or frozen – both work equally well. 


5 – Vitamin Drops

Did you know that vitamins are available in liquid form? Adding a few drops into the blender is an easy way to get all your vitamins in a smoothie.


Vitamin drops don’t taste of anything so you can add them into any smoothie flavour you like. They can help to make up for any deficiencies in your diet – a lack of iron, vitamin A and iodine are the most common. These simple drops can help you avoid this (but a varied diet is of course the best way).


6 – Oats

Oats are another healthy add-in that can boost the healthiness of your smoothie. They’re rich in fibre, slow-release carbs, and iron so will add plenty of nutrients to a shake. We love oats in a breakfast smoothie.


Oats are a cheap add-in so perfect for staying healthy on a budget. also have the added benefit of making smoothies thicker and more filling. This means you’re less likely to snack afterward!


But oats are also one of the best things to put in a smoothie for weight gain. They add calories to your diet which combined with the right fitness regime, can help you to gain weight.


7 – Berries

Berries are packed with vitamins and rich in antioxidants. Adding a handful of blueberries, blackberries, raspberries, or strawberries to your smoothie is a quick and tasty way to make it healthier.


We keep berries in our freezer all year round so that we always have them on hand for smoothies. Although I don’t like the taste of blueberries, I can never taste them once blended into a smoothie. This Blueberry Protein Smoothie is my go-to after a workout.


Healthy Smoothie Add-Ins – Summary

Adding these ingredients to your smoothies can boost their nutritional value. They add vitamins, minerals, and other key nutrients to your diet.


Protein powder, flaxseed, fibre powder, leafy greens, vitamin drops, oats, and berries are all super-healthy smoothie add-ins. This stuff can make a dramatic difference to how your body looks, feels, and performs.


What are your favourites? Let us know on social media!


Nutrition Info You Can Trust

Our in-house associate nutritionist holds a Master’s degree in Human Nutrition, a bachelors degree in Sports Science and English, and a Diploma in Personal Training. She has over 15 years of experience in the health and fitness industry, working with leading health clubs, equipment manufacturers, and one-to-one clients. 


Healthy Smoothie Add-Ins