Ultra-processed foods (UPFs) have become a growing topic of discussion in nutrition and health circles. They are typically defined as foods that undergo extensive processing and contain additives such as preservatives, emulsifiers, artificial sweeteners, and flavourings. The NOVA classification system, widely used by researchers, categorises foods into four groups, with UPFs falling into the highest level of processing. These foods often bear little resemblance to their original ingredients and are designed for convenience, long shelf life and enhanced flavour.
But is protein powder a UPF? This may be a concern for those who consume protein powders in tandem with activities such as weightlifting, where supplementing protein can enhance muscle development. If that sounds like you – or you use protein powders for other reasons – read on to find out whether these supplements are right for you.
Is protein powder a UPF?
Protein powders can sometimes be considered ultra-processed, depending on their formulation. Many protein powders contain added flavours, artificial sweeteners, thickeners and emulsifiers to improve taste, texture and mixability. These additional ingredients may push them into the category of UPFs. However, the level of processing varies between brands and types of protein powders.
How to identify a UPF protein powder
One very basic way to determine whether a protein powder might be ultra-processed is to check the ingredients list. If it includes components that you wouldn’t typically find in a home kitchen, such as maltodextrin, carrageenan, acesulfame potassium, or artificial flavourings, there’s a chance it may be ultra-processed.
A high-quality protein powder may contain just one or two ingredients, such as whey protein concentrate or pea protein isolate.
However, this method isn’t fool-proof. The UPF characteristic often applied to protein powder also lies in the manufacturing process. After all protein powders look nothing like their source protein – cow’s milk, peas, soybeans, egg, rice or hemp – which demonstrates that processing has taken place.
These source proteins undergo initial processing such as pasteurisation and separation (whey), and grinding (pea and soy), before the proteins are extracted through chemical, enzymatic or mechanical methods like filtration, ion exchange, alkaline extraction or hydrolysis. Plant-based proteins are more likely to undergo chemical extraction, whereas whey protein is usually mechanically extracted. Products such as protein concentrates and isolates often go through even more processing in order to increase the amount of protein in the final product.
After extraction, the resulting product will be purified, spray-dried into a fine powder, and then mixed with flavours, sweeteners and additives.
Benefits of unflavoured and organic protein powders
Unflavoured protein powders are a great option for those who want to avoid artificial additives. These typically contain very few ingredients – in many cases, the protein source and an emulsifier (often Sunflower Lecithin, which keeps the powder from clumping) – allowing you to add your own natural flavourings, such as fruit, cacao or spices.
Organic protein powders can also be a better choice if the brand can verify that their product is truly organic. This means the protein source is free from pesticides, synthetic hormones and artificial additives. However, it’s always important to check the brand’s certification and ensure they adhere to stringent organic farming and processing standards.
Natural alternatives to protein powder
If you prefer to avoid protein powders altogether, there are plenty of natural, whole-food sources of protein that you can add to your diet. Here are some great options to boost the protein content of smoothies or meals:
- Greek yoghurt – High in protein and adds a creamy texture to smoothies.
- Cottage cheese – Blends well in smoothies and provides a protein boost.
- Nut butters – Almond, peanut, or cashew butter add protein and healthy fats.
- Chia seeds – Rich in protein, fibre, and omega-3 fatty acids.
- Hemp seeds – A great source of plant-based protein with a mild, nutty flavour.
- Silken tofu – A neutral-tasting addition to smoothies, high in protein.
- Oats – Contain protein and fibre, providing a slow-release energy source.
- Egg whites – Can be added to smoothies for a protein boost without altering the flavour significantly.
Are UPFs always bad?
Consuming some ultra-processed foods is not inherently harmful. The key is moderation – an overall diet should prioritise whole, minimally processed foods while allowing room for some convenience items.
Protein powders can be useful for individuals who struggle to meet their protein needs through whole foods alone, such as athletes, people with increased protein requirements, or those following plant-based diets. The main concern with UPFs arises when they dominate the diet, replacing nutrient-dense whole foods.
Protein powders and UPFs: What’s the verdict?
Protein powders are likely to fall into the category of ultra-processed foods because of the way in which they are manufactured, and their ingredients. However, some protein powders are less processed than others, and they can be a convenient way to meet protein needs alongside a healthy, balanced diet.
To make the best choice, check the ingredient list and opt for unflavoured or organic versions where possible. If you prefer to stick with whole foods, there are plenty of natural protein sources you can incorporate into your diet to support muscle growth and overall health.
