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How to Train More Sustainably

21st February 2023

21st February 2023

By Robyn Schaffer

Everyone’s talking about sustainability. In every sphere, in every industry, sustainability seems to be the topic du jour. And thanks to the ongoing pandemic, the environmental issues that our planet and society was already facing have been unexpectedly magnified.

Now more than ever, we’re realising the consequences that our actions have on the future of the planet, and the choices that we make in all aspects of our lives are becoming more and more critical by the day.

The world of fitness is no exception. The UK fitness industry is one of the biggest in Europe, in second place to only Germany, so the impact we have in this area is paramount.

Over the past few years, a whole host of brands and companies in the industry - big and small - have been working to make the fitness space more sustainable and ethical. Not just for the benefit of the planet, but for us as individuals. However, we know that if you aren’t so well-versed on the topic of sustainability, it can be difficult to know where to start. 

So with that in mind, we’ve put together a list of five easy steps you can follow if you want to know how you can train more sustainably. Mother Earth will thank you later.

Sustainable activewear

Activewear. It’s our favourite type of clothing, even more so since lockdown. According to GlobalData, the UK sportswear market is forecast to grow by 20.9% out to 2023 to reach £6.7bn. That’s a lot. So the choices we make when buying our gym gear are pivotal.

Instead of fast fashion brands or global high street labels, opt instead for local or independent, ethically made, sustainable brands that don’t contribute to the huge amounts of waste created by the fashion industry.

Think leggings made from recycled plastic bottles and total supply chain transparency. What’s not to like? Some of our personal faves out there right now are Girlfriend Collective, TALA, Perff Studio and Pangaia.

Recycle your old gear

If you’re a bit of an activewear hoarder (we won’t judge) it might be time for a clear out. But did you know that 350,000 tonnes of used but still wearable clothing goes to landfill in the UK every year?

That’s around £140 million worth of clothing wasted. Instead, recycle or donate your old gear. Initiatives like Nike's Reuse-A-Shoe programme takes your used shoes, recycles them and gives them a new life. While Adidas' trade-in option lets you send them any old gear (used or unused), and they’ll then reward you with points to put towards a new purchase. It’s a no-brainer.

Be more plant-based 

Incorporating more plant-based foods and meals into your diet has become one of the biggest health trends of the past few years. In fact, interest in 'veganism' and eating plant-based increased seven fold in the five years between 2014 and 2019, according to Google Trends. 

Eating more plant-based meals is not only beneficial to your body (just think about all that natural goodness), it’s also more sustainable for the planet and the beings that inhabit it.

To get started, why not try Meat-Free Mondays once a week? There’s many misconceptions about eating plant-based, and getting enough protein doesn’t always mean shoving in the steaks. Try our delicious recipe for lentil and mushroom bolognese if you’re in need of some inspiration.

And don't forget that many of our Innermost products are also vegan. If it's good enough for GQ and Men's Health, we know you'll love it too. 

Cut that carbon footprint

In 2017, greenhouse gas emissions from road transport made up around a fifth of the UK’s total GHG emissions. So if you’ve been driving to the gym, think again. Luckily, there are plenty of ways we can cut our carbon footprint in relation to our training.

Take public transport, cycle, walk or even run to the gym - who doesn’t want to get that extra workout in? Motivate yourself by downloading apps like Strava or Nike Run Club to track your movements and compete with friends. Now’s your time to show off.

Spread the word

Last but not least, one of the best things you can do for the sustainability movement is spread the word.

Talk to friends and family about your sustainable finds, follow new brands on social media and share their content wherever you can. There are also plenty of sustainable fitness blogs out there to keep you informed and entertained while you learn.

Check out a few of our favourites here:


Now it's time to put in the work. We'd love to hear how you get on with these suggestions for incorporating more sustainable choices into your lifestyle and fitness routine, so hit us up in the comments below.

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Other Insights

Why Natural Protein Supplementation Matters
Walk into any health shop, or scroll any supplement site, and you often find that protein powders start to blur into one. Almost all of them make the same promises on the front: ‘high in protein’, ‘no added sugar’, ‘no additional additives’. The wording is so similar that telling a genuinely good product from a synthetically produced product is harder than it should be. Read past the figure on the front however and you'll usually find a protein that contains artificial sweeteners, synthetic flavourings and colours, and even fillers or bulking agents just to name a few. The reason they tend to do this is that costs of production are much cheaper as a result of the lower quality ingredients. A naturally formulated protein supplement works the other way around. The protein comes from a quality source, the flavour and sweetness come from ingredients you'd recognise rather than ones built in a lab, and anything that doesn't need to be there is left out. This piece is about that difference: what natural really means for a protein supplement, why it matters, and how to spot it for yourself. What "natural" actually means in protein supplements "Natural" is one of the most used and least understood words in wellness, printed on plenty of labels with very little behind it. There's no strict, regulated definition for it, so a brand can reach for the word fairly freely. This is why it pays to know what you're actually looking for. Used honestly, natural points to ingredients that come from recognisable sources and are processed as lightly as the format allows. For protein, that usually means a base derived from food such as: Whey Pea Hemp Brown rice Other plant-based proteins Just as telling is what gets left out, and how openly the packaging accounts for what stays in. A natural protein supplement has little to hide, so the label tends to be short and the reasoning easy to follow. The real test is whether the formula makes sense as a whole. Can you understand what's in it? Does each ingredient have a clear purpose? And does the brand explain the benefit plainly, rather than hiding behind vague wellness language? Why ingredient quality matters in protein supplements When people compare protein powders, the first thing they often look at is the amount of protein per serving. It matters, but this number doesn’t tell you everything about a supplement’s quality. A synthetically formulated powder may contain just as much protein per serving as a natural alternative, but it may also include more artificial additives that are bad for your health.  This is especially important as supplementation is usually taken regularly as part of a daily routine. If something becomes part of your breakfast, post-workout routine or afternoon shake, the quality of the overall formula may influence how well it fits into your daily routine. Natural protein powders are often separated by a few key criteria: Ingredient sourcing: Whey is highly bioavailable and naturally rich in essential amino acids that support muscle repair. A good plant-based blend can also be effective when it is built to provide a strong amino acid profile. What surrounds the protein: Sweeteners, thickeners and flavourings affect taste, texture and how a shake feels once you have taken it. Some formulas rely heavily on artificial sweeteners, gums or thickeners, which may contribute to bloating or digestive discomfort. Digestibility: A protein you absorb and tolerate comfortably is more useful than a bigger number on the label that does not sit well with your body. Purpose: A formula built around a specific goal, such as strength, performance, energy or satiety, is more useful than a generic powder with no clear reason behind the ingredients. The benefits of natural protein supplementation The real value of natural supplementation becomes clearer when you look beyond protein content alone. Below are some of the key benefits of choosing natural protein supplements over more artificial or heavily processed alternatives. Supporting strength and lean muscle Building strength and lean muscle is one of the main reasons people turn to natural protein supplements.  A good one supports muscle repair after training and helps maintain muscle over the longer term. That's especially useful if you train regularly and eat well but can't always put together a high-protein meal straight after a session. Helping with recovery after exercise After a workout, your body needs nutrients to repair and adapt, and protein is central to that process, particularly if you train several times a week. A natural protein supplement offers a convenient way to support recovery without making nutrition feel complicated, whether mixed into a shake, smoothie or simple post-workout snack. Supporting satiety and body composition goals Protein keeps you feeling fuller for longer, which makes balanced eating easier to stick to.  For anyone working towards fat loss, lean muscle or general body composition, natural protein supplementation helps steady your daily nutrition alongside whole foods, movement and rest, without relying on the added sugar that some cheaper formulas contain. Making daily nutrition easier Even with good intentions, it is not always easy to get enough protein through meals alone. Busy days, training schedules and travel can all make consistency harder.  A natural protein gives you a simple, repeatable way to keep your intake up on the days that get away from you, using ingredients you can actually recognise. Natural supplementation doesn't have to taste bland There's a common assumption that natural supplements have to taste bland, chalky or unpleasant. Plenty of people have met exactly that: a protein that sounds healthy on paper but turns out too earthy, too sweet or too gritty to enjoy. It gets used for a few days, then pushed to the back of the cupboard. The problem there is usually the formulation, not the missing additives. Chalky, overly sweet shakes come from corners being cut. Getting flavour and texture right without falling back on heavy sweeteners is genuinely hard, which is a good sign a brand has done the work. Taste matters for a practical reason as much as an enjoyable one. A protein you look forward to is one you'll keep using, and consistency is what actually delivers results. The best-formulated supplement on the shelf does nothing while it sits unopened. The innermost approach to natural protein Everything above is the standard we at Innermost hold ourselves to. Our proteins are built on clean and naturally-derived ingredients, formulated with the backing of nutritional science rather than guesswork. We leave out the fillers, bulking agents and needless extras that have no business being in a quality protein, and we're open about what goes in and why. We also happen to think clean and natural should taste good, because a protein you enjoy is a protein you'll actually use.  Explore our protein powders to find the formula that best fits your goals, routine and lifestyle. References Morton, W., Murphy, T., et al (2018). A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults. Br J Sports Med. 52(6). Click here. Jäger, R., Kerksick, C., et al (2017). International Society of Sports Nutrition Position Stand: protein and exercise. J Int Soc Sports Nutr. Click here. Seijo, M., Naclerio, F. (2019). Whey Protein Supplementation and Muscle Mass: Current Perspectives. Click here. Read more
The Protein Mistake That's Holding Back Your Results
I've written at length about creatine. I've written about collagen, electrolytes, the GLP-1 moment, even the science of sleep. But I've never written a personal email about protein. That's a strange omission for someone who built a brand that makes some pretty ground-breaking protein powders. So let me explain why, and then actually say the thing I've been avoiding. Protein is the most foundational supplement in the Innermost range. It's also the hardest subject for me to write about personally, because there's nothing surprising about it. Creatine had a story. Collagen had a story. Protein is well... protein. Everyone knows you should eat more of it. The mechanism is not a secret. Muscle protein synthesis, leucine threshold, net nitrogen balance. If you've been in the fitness space for more than a couple of years, you've read this before. And I think that's the problem. The familiarity makes people stop paying attention. Here's what I actually think about protein, after a decade of working in this space. Most people in their thirties and forties are under-consuming protein and don't know it. Not by a small amount. The gap between what most people eat and what the research supports for muscle maintenance and body composition outcomes is significant. Studies looking at optimal intake for adults prioritising body composition consistently point to between 1.6 and 2.2 grams per kilogram of bodyweight per day. Most people are eating somewhere between 0.8 and 1.2. The difference is not cosmetic. Adequate protein intake directly affects your ability to preserve muscle tissue during a caloric deficit. It supports recovery between sessions. It has a measurable effect on satiety, which means it influences total caloric intake downstream, not just at the point you consume it. There's a subtler point too, and this is the one I've come to think matters most: protein is the nutrient where consistency compounds most directly. The benefits of creatine saturate over time in a relatively predictable way. Collagen has a timeline that research measures in months. But protein's effect on body composition is essentially continuous. Every day you hit your target, you preserve something. Every day you don't, you lose a small amount of ground. Over a summer, that adds up. This is what I've observed personally, and it's backed by the research on muscle protein turnover. The people who maintain their body composition through summer are not, in my experience, the people who train harder during that period. Most of them train less. Their routines are disrupted. They're travelling. Their eating is less structured. The people who come back in September looking broadly the same as they left in June are the ones who kept their protein intake consistent. That's it. That's the variable. Why I take The Lean Protein I’ve been taking The Lean Protein the past few months for a straightforward reason: the protein-to-calorie ratio. Much like our other protein blends, each serving delivers over 30 grams of protein. The calorie count is low relative to that protein yield. When my training is consistent and my eating is structured, I don't think about this very much. But in the periods when those things are less reliable, that ratio becomes the thing that holds the rest together. The formula also includes acetyl-L-carnitine, inulin, pomegranate extract, and yerba mate. These aren't afterthoughts. Acetyl-L-carnitine has a research base in fat metabolism. Inulin supports satiety and gut function. The pomegranate extract is included for its antioxidant contribution to recovery. This means that the formula does more work per serving than a standard whey and just what I need going into summer. The thing the industry gets wrong about protein Most protein marketing leads with taste and price per gram. Both matter. But neither tells you whether the formula will support body composition outcomes over time. The two questions I'd ask before buying any protein powder are: what is the actual protein-to-calorie ratio, and what is the leucine content per serving.  Leucine is the branched-chain amino acid most directly linked to triggering muscle protein synthesis, and there is a threshold dose, roughly 2.5 to 3 grams per serving, below which the anabolic response is blunted. Many protein powders do not disclose this. They just list total protein and move on. The Lean Protein does not have this problem. The formula is transparent. The dose is evidence-based. One thing I'd ask you to consider: if you've never actually checked whether you're hitting your protein targets, try tracking it for three days. Most people find the gap is larger than they expected. If you're not sure which Innermost product fits your specific goal, the quiz on our site is a good place to start. Find the right protein for your goal   Read more