person checking a protein powder jar in a store

Are Single-Ingredient Protein Powders Compatible With Dairy-Free Diets?

The Organic Protein Company

Whether a single-ingredient protein powder is compatible with a dairy-free diet depends on the source of the protein and any other ingredients added.

Some protein powders are made from whey, which is derived from milk. Others are made from plant proteins such as peas, faba beans, hemp or rice. Understanding the difference can help you choose a product that aligns with your dietary needs and preferences.

milk glass, cheese and a bowl of protein powder

What “Dairy-Free” Means


A dairy-free diet excludes ingredients derived from milk.


That means whey protein powders (including single-ingredient whey protein concentrates) are not considered dairy-free, even if they contain relatively small amounts of lactose compared with milk itself.


Some people who avoid dairy because of lactose intolerance may find certain dairy-derived products easier to tolerate than others. However, if you have a milk allergy, follow a vegan diet or choose to avoid dairy for another reason, whey protein is not suitable.

plant based protein ingredients

Plant-Based Protein Alternatives


If you’re looking for a dairy-free protein powder, plant-based options include pea protein, faba bean protein, hemp protein, rice protein and blends that combine multiple plant protein sources.


Single-ingredient plant proteins are available, although many companies choose to combine different plant proteins to create a broader amino acid profile or improve taste and texture.


As with whey protein, formulations vary considerably. Some products contain only the protein source itself, with or without whole foods, while others use artificial additives including flavourings, sweeteners and emulsifiers.

A person checking a checklist of which protein powder to choose

Making Your Choice


The best protein powder for you will depend on why you’re avoiding dairy. If you follow a vegan or dairy-free diet, a plant-based protein powder might be the right choice for you. If you’re simply trying to reduce lactose intake, the right option may depend on your individual tolerance and dietary preferences.


Whatever protein source you choose, it’s worth looking beyond the headline claims and checking the ingredients list for any unnecessary fillers. 


Discover our range of high-quality organic whey protein powders.


If you are looking for a UPF-free protein powder, some plant protein powders are considered UPF-free. However, many plant, and all whey, proteins are classified as NOVA Group 4 (ultra-processed) because of the way they are made. At The Organic Protein Co., our whey is cold-filtered, undenatured and free from synthetic additives, making it popular with those looking for minimal-ingredient, additive-free whey protein.


To learn more about how we approach ultra-processing and what it means for your protein choices, read our full guide.