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The Complete Guide to Lactose-Free Protein Powders and Their Benefits

11th November 2025

11th November 2025

By Zak Hillard

Protein powders are a super useful tool in any wellness-enthusiast’s arsenal, but unfortunately one size does not fit all here. You might have landed here because you can’t have lactose, don’t wish to for one reason or another, or maybe just because you’re always curious about different aspects of nutrition (and we love that). 

Whatever your motivation for finding out more about lactose-free protein powders, this guide will walk you through why some people choose to skip the lactose, what the main alternatives and benefits are (as well as how they differ), and how Innermost can help you find the perfect protein powder for your personal goals. 

Enough of the preamble, let’s get into it! 

Why choose a lactose-free protein powder?

Lactose intolerance, allergies or digestive sensitivity

Whether you’re lactose intolerant or not, many people can find they experience some discomfort when they consume lactose-based protein powders. Typical symptoms include bloating, gas, diarrhoea or just general stomach discomfort – in short, it’s not pleasant. 

This isn’t just for the minority either, as it’s estimated that around 68% of the world’s population have some form of sensitivity to lactose1. In the pursuit of better health, there’s no need to put yourself through discomfort to get the nutrition you need – especially with today’s wide range of alternative protein options. 

Lifestyle or ethical choices

Aside from physical issues, many people choose to avoid lactose for a variety of personal reasons. For those following a vegan diet, lactose is an obvious miss due to its dairy origins, with many others looking for ways to reduce their consumption of animal-derived products wherever possible. In addition, while lactose can be halal compliant, this isn’t always the case if it contains certain additives.  

Common alternatives to lactose-based protein powders

So, plenty of people are looking for lactose-free protein powders but what are the top options? Let’s break them down. 

The benchmark – lactose-based proteins 

We often hear the question, ‘is whey protein lactose-free?’ – unfortunately, the answer is no. Whey protein originates from milk and therefore contains lactose. 

However, whey protein is a very effective protein supplement and what many consider as the benchmark for protein powders. It’s high in essential amino acids and offers rapid absorption, making it a perfect option for post-workout refuelling. 

Saying that, as they are the most abundant on the market, there are also quite a few low-quality whey proteins out there. To drive the price down as much as possible, they can be chock-full of:

  • Artificial flavours
  • Fillers
  • Bulking agents
  • Artificial colours

But not ours. 

If lactose isn’t an issue for you, check out our Innermost range of whey protein powders – we think you’d like them. 

The alternatives - plant-based/lactose-free proteins

The most common lactose-free protein alternatives include soy, pea, brown rice and blended plant proteins. Here, we’ll cover each of those and look at how they differ from each other to help you pick out your best option. 

Protein Type

Key Science-Backed Benefits

Possible Limitations

 

 

 

Soy Protein Powder

• Complete amino acid profile.

• Can lower “bad” cholesterol, supporting heart health.

• Contains isoflavones which may support bone health, menopause symptom relief, and post-exercise recovery.

• Not the most perfectly balanced profile of amino acids.

• Absorption is a little slower than whey.

• Not suitable for those with soy allergies.

 

 

 

Pea & Brown Rice Protein Blend

• Their complementary amino acid profiles make a complete plant protein.

• Shown to stimulate muscle protein synthesis on par with whey protein after resistance training.

• Easily digestible, hypoallergenic, vegan and lactose-free.

• Can have a gritty texture or earthy taste if unflavoured (not a problem with our special Innermost blend).

 

Other Plant Proteins (Hemp, Pumpkin Seed, etc.)

• Provide extra nutrients such as omega-3s, magnesium and zinc.

• Offer antioxidant and anti-inflammatory properties beyond protein.

• Typically lower total protein per serving than soy or pea/rice blends.

• May have a stronger, nutty flavour which doesn’t suit all palates.

 

Soy protein

Soy protein, made from soy beans, is one of the most high protein plant sources and is a ‘complete protein’ (meaning it contains all nine essential amino acids). 

It’s a great dairy and lactose-free protein option, although it isn’t quite as easily absorbed as whey and the amino acid profile isn’t as well balanced as some other options – for example, it contains a little less leucine. 

Soy protein’s flavour profile is smooth and pretty neutral, but some blends can have a mild nutty or ‘beany’ flavour to them. 

To summarise, the top benefits of soy protein powder are:

Pea and brown rice protein 

Laurel and Hardy, Batman and Robin, pea and brown rice protein… maybe a bit of a reach but who doesn’t love a quality double act? 

On their own, pea and brown rice proteins are good but they don’t offer the most balanced profiles. That’s why many modern lactose-free protein powders make use of a blend of the two, building a very balanced amino acid profile which rivals that of whey.

Pea protein provides lysine, brown rice protein adds methionine – together, they’re a dairy-free powerhouse. That’s why this is our go-to when it comes to lactose-free or vegan proteins.

We’ve spent a lot of time perfecting our blend to provide a smooth, tasty alternative protein option and we think we’ve cracked it. Check out our range of pea and brown rice vegan proteins to see for yourself.

To summarise, the top benefits of pea and brown rice protein powder are:

Other plant protein sources

Alongside these two front-runners, there are a host of other plant-sourced protein powders to choose from. These include hemp, pumpkin or sunflower seeds, and pea or rice alone. 

The biggest benefit to these other sources is their rich profile of nutrients, such as fibre and various minerals, however they do typically offer a lower protein concentration. 

Depending on which one you pick, the flavour profile will likely differ greatly and some of these offer a slightly grainy texture. If you’re looking to use one of these, we’d recommend mixing it into smoothies or other bases for a better flavour experience. 

To summarise, the top benefits of other plant-based protein powders are:

  • Hemp-seed and pumpkin-seed protein powders (for example) offer extra nutrients (like omega-3 fatty acids, magnesium or zinc) as well as protein6.
  • These extra nutrients offer antioxidant and bioactive properties beyond protein, which can offer a number of other benefits.
  • Keep in mind though, whilst they do offer a wider spectrum of nutrients, the concentration of protein found here is often lower. 

How Innermost can help – our lactose-free protein powders

At Innermost, our focus has always been on following the science and using the highest quality ingredients across every product we offer. 

Our lactose-free protein powders are free from artificial fillers, bulking agents, colours and major allergens, and are designed to give you all the benefits a protein supplement should, whether or not you consume lactose. 

With this in mind, let us give you a whistlestop tour of our top lactose-free protein options. 

Some of our favourites

  • The Health Protein: Vegan, dairy and lactose-free with 31g protein per serving – powered by pea and brown rice protein. Designed to give you the protein you need whilst also supporting your immune system.
  • The Fit Protein: Also vegan, dairy and lactose-free with 31g protein per serving – no compromises. Formulated for hydration and energy, this is the ideal protein pick for people looking to push themselves further than most.

How to choose the right lactose-free protein for you

Choosing the right protein powder for you is a case of asking yourself a few simple questions:

  • What are my dietary restrictions? Lactose-free? Dairy-free? Vegan? This will help you narrow down your options pretty quickly
  • What are my goals? Do you want to build muscle? Recover from gruelling workouts? Manage your weight? Boost your immunity? Find a protein powder which is suited to your goals, whatever they are
  • Do I have any sensitivities to ingredients and would rather avoid them? Even some plant proteins can have ingredients you might react to – make sure to read the full ingredients list before you put anything in your body
  • What are the recommended servings? Some plant proteins can need larger serving sizes to achieve your desired amount of protein. Make sure this fits within your budget and taste preferences. If in doubt, try a trial pack first!

Whatever your reason, we made it easy

Whether lactose makes you blow up like a balloon or you’re looking to avoid animal products, there is more than one option out there to give you the nutrition you need.

At Innermost, our goal is to bring high-quality, feel-good nutrition to all, and our special pea and brown rice protein blend is a big part of that. Combined with other active ingredients, our lactose-free proteins can help you match your dietary needs with your wellness goals – no more compromising. 

Lacking in lactose, not goodness.  

References

  • Definition & Facts for Lactose Intolerance, National Institute of Diabetes and Digestive and Kidney Diseases, February 2018. Click here
  • L. van den Berg, J. Mes, M. Mensink, A. Wanders, Protein quality of soy and the effect of processing: a quantitative review, Nutrition and Food Science Technology, Vol. 9, 2022. Click here.
  • Straight Talk About Soy, The Nutrition Source, Harvard T.H. Chan, Jan 2022. Click here. 
  • M. Messina et. al, The health effects of soy: A reference guide for health professionals, Clinical Nutrition, Volume 9, 2022. Click here. 
  • VAN DER Heijden I, Monteyne AJ, West S, Morton JP, Langan-Evans C, Hearris MA, Abdelrahman DR, Murton AJ, Stephens FB, Wall BT. Plant Protein Blend Ingestion Stimulates Postexercise Myofibrillar Protein Synthesis Rates Equivalently to Whey in Resistance-Trained Adults. Med Sci Sports Exerc. 2024 Aug 1;56(8):1467-1479. doi: 10.1249/MSS.0000000000003432. Epub 2024 Mar 23. PMID: 38537270; PMCID: PMC11810040. Click here.
  • Imashi Fernando, 6 Super Healthy Seeds You Should Eat, Healthline, August 2025. Click here.

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They also provide plant-based protein, making them particularly useful in meals focused on satiety and recovery. Nuts and Seeds Chia seeds, flaxseeds, and almonds offer a concentrated source of fibre and can be added easily to meals. Even small additions, such as a tablespoon of seeds in a breakfast or smoothie, can make a difference over time. A Smarter Way to Think About Fibre Fibre doesn’t need to be treated as a standalone goal. It works best as part of a balanced, well-structured approach to nutrition - one that supports how you feel day to day, not just how you perform in the odd moment. For most people, that starts with whole foods. Building meals around plant variety, whole grains, and consistent habits. From there, the role of supplementation becomes more effective. The Innermost approach reflects that balance. Products like The Greens Blend can help support daily plant intake and micronutrients, while products such as The Lean Protein fit alongside a diet that prioritises both protein and fibre, rather than one at the expense of the other. Building a high fibre diet isn’t about adding or overhauling, instead It’s about making those small adjustments that bring more consistency to your routine. Over time, those shifts tend to have the biggest impact - not just on digestion, but on how your body feels, performs, and recovers. References Renolds, A., Mann, J., Cummings, J., Winter, N., MDiet, E., Morenga, L. (2019). Carbohydrate quality and human health: a series of systematic reviews and meta-analyses. The Lancet. 393 (10170), 434-445. Click here.  NHS UK. How to get more fibre into your diet. Click here.  Hullings, A., Sinha, R., Liao, L., Freedman, N., Graubard, B., Loftfield, E. (2020). Whole grain and dietary fiber intake and risk of colorectal cancer in the NIH-AARP Diet and Health Study cohort. The American Journal of Clinical Nutrition. 112 (3), 603-612. Click here. Threapleton, D., Greenwood, D., Evans, C., Cleghorn, C., Nykjaer, C., Woodhead, C., Cade, J., Gale, C., Burley, V. (2013). Dietary fibre intake and risk of cardiovascular disease: systematic review and meta-analysis. BMJ.347. Click here. Read more
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Digestive enzymes are specialised proteins that help break food down into smaller molecules that can be absorbed through the gut lining. Without them, even the most nutrient-dense diet would be difficult for the body to utilise effectively. The process itself is highly coordinated. Enzymes are released at different stages of digestion, working in sequence to ensure food is progressively broken down as it moves through the digestive tract. Put simply, digestive enzymes are what bridge the gap between what you eat and what your body actually gains from it. As you would expect, this can directly impact your fitness as well as your mood. Types of digestive enzymes and what they do Digestive enzymes are typically grouped into 3 core segments based on the nutrients they target. Amylase (Carbohydrates): Amylase breaks down complex carbohydrates into simpler sugars. It begins its work in the mouth and continues in the small intestine. 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A study published in the American Journal of Clinical Nutrition for example highlights that effective protein digestion and amino acid absorption play a key role in muscle repair and recovery after exercise. For anyone training regularly or focusing on performance, this becomes especially important. It’s not just about what you eat, but how well your body is able to make use of it. Where Are Digestive Enzymes Produced? Digestive enzymes are produced throughout the digestive system, with each stage contributing to the overall process. The mouth Digestion first begins with chewing. The salivary glands release amylase, an enzyme that starts breaking down carbohydrates before food is even swallowed. This early stage is often overlooked, but it plays an important role in preparing food for the next steps. The stomach The stomach next combines gastric acid with enzymes such as pepsin, which begins the breakdown of proteins. This stage is less about complete digestion and more about creating the right conditions for further processing. The pancreas The pancreas is responsible for producing the majority of digestive enzymes, including amylase, protease and lipase. These are released into the small intestine, where most digestion takes place. Clinical research has shown how central this role is. Conditions that impair pancreatic enzyme production, such as exocrine pancreatic insufficiency, can significantly reduce nutrient absorption and lead to noticeable digestive symptoms. The small intestine The small intestine completes the process. Additional enzymes help finalise digestion, allowing nutrients to pass through the intestinal wall into the bloodstream. Enzyme production across these stages can vary depending on diet, stress levels and overall gut health. This is why your digestion doesn’t always feel consistent, and some days can feel more comfortable than others. Signs your digestion may not be working optimally Some of the more common signs that digestion may not be working as efficiently include: Bloating or discomfort A feeling of heaviness, particularly after larger meals Sluggishness or dips in energy following eating Gut sensitivity to certain foods These experiences are relatively common and often reflect how digestion is responding to day-to-day habits. Below are some of the key reasons why your digestive system may not be operating effectively. Eating quickly or on the go can limit how effectively digestion begins, particularly in the mouth where enzymes first start working. Stress can also play a role. When the body is in a more alert or pressured state, digestion is not the priority, which can affect how efficiently food is broken down. Higher protein diets are increasingly common, particularly among those training regularly. While beneficial, protein requires more extensive digestion, placing greater demand on enzyme activity. Fewer whole foods and less plant diversity may influence how the digestive system responds over time. Foods high in digestive enzymes So, for those looking to improve digestion by adding more digestive enzymes to your diet, how do you go about doing it? While your body produces its own digestive enzymes, certain foods also contain naturally occurring enzymes that can support the digestive process. These tend to be most active in raw or minimally processed forms and can complement a balanced, varied diet. Some of the more commonly referenced foods include: Pineapple (Bromelain – Protease): Pineapple contains bromelain, which has been studied for its role in helping break down protein. It is often associated with supporting protein digestion. Papaya (Papain – Protease): Rich in papain, papaya is another enzyme that assists with protein breakdown. It’s frequently used in both digestive support and food preparation. Mango (Amylase – Carbohydrates): Mango contains amylase enzymes that help break down complex carbohydrates into simpler sugars, particularly as the fruit ripens. Bananas (Amylase & Maltase – Carbohydrates): Provide enzymes that support carbohydrate digestion, especially when ripe. Avocado (Lipase – Fats): Contains lipase, which plays a role in breaking down fats into fatty acids. These foods can play a useful role in supporting digestion as part of a broader diet. However, their enzyme content can vary depending on factors like ripeness, storage and preparation, and they don’t always provide consistent or targeted support on their own. In those situations, you might also look at targeted digestive enzyme supplements that can provide a more consistent and concentrated level of enzyme activity alongside meals, supporting the breakdown of proteins, carbohydrates and fats more reliably than food sources alone. Digestive enzyme supplements The key to effective digestive enzyme supplementation is choosing a well-formulated option that combines a broad range of enzymes with a clean ingredient profile. Case in point: supplements like Innermost’s The Digest Capsules are built with this in mind, offering a considered blend that fits easily into a daily routine and works alongside your existing nutrition rather than replacing it. For those considering digestive enzyme supplements, how and when they’re used can influence their effectiveness. Before or with meals Digestive enzyme supplements are typically taken just before or alongside meals, allowing them to act as food is being broken down. Around larger or harder-to-digest meals Meals that are higher in protein, fats or overall volume can place greater demand on digestion. This is often where additional supplementation can be beneficial. Fitting into your routine How and when you use digestive enzymes will depend on your routine, your diet and how your body responds. Rather than following a fixed structure, it often makes more sense to take a flexible approach. Used consistently or as needed, they should fit seamlessly into your day, supporting digestion without adding unnecessary complexity. Supporting your digestion effectively Digestive enzymes play a fundamental role in how your body processes food and accesses nutrients. When digestion is working well, the impact is often felt across energy, recovery and overall wellbeing. While your body naturally produces these enzymes, factors like diet, lifestyle and routine can influence how consistently that process runs. In those moments, small adjustments - whether through food choices or more targeted supplementation - can make a noticeable difference. For those considering supplements, a well-formulated option such as The Digest Capsules can provide a simple, reliable way to support digestion alongside your daily routine. References Leidy, H., Clifton, P., Astrup, A., Wycherley, T., Westerterp-Plantenga, M., Luscombe-March, N., Woods, S., Mattes, R. (2015). The role of protein in weight loss and maintenance. Am J Clin Nutr. 101(6). Click here.  Ni, W., Hutagalung, A., Li, S., Epstein, H. (2011). The myosin-binding UCS domain but not the Hsp90-binding TPR domain of the UNC-45 chaperone is essential for function in Caenorhabditis elegans. J Cell Sci. 124(18). Click here. Pavan, R., Jain, S., Shraddha., Kumar, A. (2012). Properties and Therapeutic Application of Bromelain: A Review. Biotechnol Res Int. Click here. Read more