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10 Ways to Make Your Lunch More Sustainable

7th October 2022

7th October 2022

By Vikki Rich

We all live busy lifestyles, so preparing and planning lunch may not take priority; it can often come as an afterthought and it’s very easy to just pop to the shop and grab something quick. Those meal deals are oh so tempting. But not only is this an expensive way to have your lunch but also very unsustainable. We’ve put a list of the 10 best ways to make your lunch more sustainable - so you can save money and the planet, win win!

  1. Cook from Scratch

Forget that supermarket meal deal, they are expensive and covered in single use packaging that’s usually not recyclable. Cooking from scratch is not only cheaper and more sustainable but it’s healthier too. You can do your future self a favour by batch cooking at the weekend. Try creating a meal prep plan, with which foods you want to cook and eat for each day in the week. Once you’ve cooked all your meals you can store in reusable containers and either refrigerate or freeze.

If you aren’t a big eater, overnight oats are a good way to get your protein in, try adding our health protein powder in for the extra boost for your immune system. These are quick and easy to make and fill you with enough energy to tackle the day ahead.

  1. Use a Reusable Lunchbox

The first step to a more sustainable lunch is your lunch box, you want something you can reuse again and again, that keeps your food fresh, together and protected. The last thing you need is a squished sandwich, right?

Try to avoid using thin plastic boxes they can easily stain, crack, and end up smelling a bit gross. A great alternative to plastic is a metal container. These are really strong, and come in a great variety of options, including separated sections to keep your food apart.

Or if a metal box isn’t your style there are some wonderful glass lunch containers that are ideal if you are batch cooking and need something that will take hot food. If your making hot food the morning before, thermos insulated reusable containers keep your food hot throughout the day so you can enjoy something warm if you don’t have the facilities to heat up food at work.

Check what containers you have in your house. There’s more than one use for everything so keep your mind open to options, for example once you’ve used up a jam jar this can be a great vessel for layered salads or overnight oats. 

  1. Avoid using clingfilm or tinfoil

If you don’t have a segregated lunch box but still want to keep your sandwich separate from everything else, you can try reusable wrapping. Avoid using clingfilm and tinfoil where possible as they are only single use. Bees wax coated fabric is an efficient way to keep your sandwich separate and protected. Its washable and made from natural products. They also come in a variety of fun designs.

Reusable paper bags are an efficient alternative to waxed fabric, they are super affordable and compostable or recyclable. Sometimes it might not be possible to use reusable items, so when you do find yourself using a single use product make sure to recycle it correctly to be more sustainable.

  1. Invest in a reusable water bottle

If you have a kitchen at work, you may be lucky enough to have glasses available for your water. However, this isn’t available in some workplaces, so investing in a reusable water bottle will help to reduce the amount of plastic disposable bottles you use.

There are many different options to choose from, try a glass bottle for something easy to put in the dishwater or a metal insulated bottle to keep you water cool in the heat.

  1. Buy food locally

Buying local food is a fantastic way to support smaller businesses as well as reducing your carbon footprint. If you have any farm shops locally these are great places to buy your fruit, veg and meat. Local butchers are also a great for any meats and pies.

If you are buying from supermarkets, check where your products origin is. Avoid buying things from other countries as the air-miles it takes to get the products shipped to the UK are not good for your carbon footprint.

Waste free pantries are popping up all over the UK, where you can bring you own containers in and choose from a range of different foods, including pasta, flour, and oats.

  1. Eat seasonally

Try to incorporate a low carbon footprint diet. Just like buying locally, eating seasonally reduces your carbon footprint. Making sure your only eating fruit and veg that is in season, this will ensure a good balance and variety into your diet throughout the year.

It also means you’ll be buying fruit and veg from the UK when it can be grown here rather than when it’s out of season and having to ship it in, for example strawberries. Only eat strawberries in the summer when they are grown in the UK and when we transition into autumn switch to using autumnal fruits such as blackberries and rhubarb. 

  1. Eat sustainable foods 

There are certain foods that you really should avoid eating if you want to be more sustainable. We hate to break it to you but avocado? Its an ava-no-go. Did you know it takes more water to produce 11 avocados than a lithium battery for a Tesla? In other words, they use up way too much water. Not only this but they aren’t commonly grown in the UK meaning high air-miles. They have also been linked to deforestation. All round they are just not sustainable. 

The same is said for palm oil products. Palm oil plays a big part in deforestation and the destruction of many ecosystems, so try to cut down on using products that have palm oil in… unfortunately that does mean saying goodbye to products like Nutella, however there are some fantastic alternatives without palm oil such as the Gu hazelnut spread. By cutting down you reduce the level of destruction from palm oil production without completely taking it away from the smaller communities that may rely on the production for a living.

  1. Waste less food

The UK wastes a shocking 9.5 million tonnes of food each year. 70% of that is food intended for human consumption (30% accounts for inedible bits such as chicken bones). We can do a lot to help bring this down. If you find you are leaving part of your meal, try to save it for later rather than throwing it away. If this happens often, cook smaller portions so you end up with no waste.

Get creative, some foods may seem inedible but can be delicious. Have you tried banana skin bacon? Don’t forget about the famous bubble and squeak, a traditional British dish using leftover roast vegetables.

  1. Compost waste

Sometime waste can’t be helped. Not everyone likes the crusts on a sandwich or slimy salad leaves. But instead of putting it all in the bin and sending it to landfill, use your home compost for biodegradable food waste. This adds nutrients back into the soil and improves our ecosystem.

If you live locally to a farm, and don’t have anywhere to compost your food, they might have a use for your waste food, chickens and pigs love to eat old scraps of food. This a great way to put your waste back into the food chain.

  1. Eat at sustainable restaurants

We know that making your lunch every day may not be possible, you might be meeting friends and eating out, or having a work meeting at lunch in a restaurant. But you can still make your trip a sustainable one by choosing your restaurants carefully.

Thankfully with sustainability becoming more of a daily routine than a myth, there has been a rise of zero waste restaurants. Many more businesses are striving to make meals using more sustainable seasonal food as well as reusing food that previously may have been wasted.

 The Sustainable Restaurant Association is working together with different businesses in the food sector to drive sustainability in hospitality with their Food Made Good programme.

Now you have all the knowledge you need to be more sustainable in your lunch, why stop there? There are so many ways you can be sustainable in your life, from training more sustainably to wearing more second-hand clothes. The possibilities are endless, together we can make a more sustainable future. Keep up the good work!

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Fibre
Within the fitness space there can be a tendency to think of fibre as something that’s just functional. Important, of course, but often its impact is only framed around digestion. In reality, fibre plays a far broader role in how your body performs and how you feel day to day, influencing variables like energy stability and appetite regulation through to long-term metabolic health. For anyone already investing in their training, recovery, and overall wellbeing, a high fibre diet matters more than you might think. It’s one of the simplest ways to bring more consistency to your nutrition, without adding complexity. In this guide, we’ll take a closer look at what fibre does, why it matters, and how to build a high fibre diet in a way that fits naturally into your routine. What is fibre and why it matters Fibre is a type of carbohydrate that is naturally sourced from foods like wholegrains, beans, nuts and more. At its core, dietary fibre is the part of plant foods your body can’t fully digest. Rather than being absorbed, it moves through the digestive system, interacting with everything along the way. This process is what makes fibre so valuable. It slows digestion, supports beneficial gut bacteria, and helps regulate how nutrients enter the bloodstream. Over time, these effects compound, influencing energy levels, hunger signals, and metabolic health. It’s worth understanding that fibre isn’t one single thing, and while it is often grouped together, different types have different roles. Broadly, fibre falls into two categories: Soluble fibre: This dissolves in water and forms a gel-like substance, helping to slow digestion and regulate blood sugar and cholesterol. Insoluble fibre: This adds bulk and supports regular movement through the digestive system. Most whole foods contain a combination of both, which is why variety matters more than focusing on a single source. Why intake is often lower than expected You might read this and think you’re easily hitting your daily fibre requirements. Yet, even among people who eat relatively well, fibre intake tends to fall short. In the UK, the recommendation sits at around 30g per day, yet average intake is closer to 18–20g. This isn’t usually down to poor habits. More often, it reflects modern eating patterns: A strong focus on high-protein meals can reduce the variety of plant foods in a diet, lowering fibre intake over time. A reliance on staples like white bread and pasta contain less fibre than wholegrain alternatives, making fibre intake harder to reach. Quick, convenient meals often lack the whole ingredients needed to support adequate fibre intake. The result isn’t a complete absence of fibre, but it does lead to a gradual shortfall below the 30g recommendations. Each meal might seem balanced in isolation, but across a full day or week, intake consistently sits below where it needs to be. The Key Benefits of a High Fibre Diet  A high fibre diet supports several key areas of health at the same time: Gut health and microbiome support As previously mentioned, fibre’s most recognised role is in digestion, but its impact actually goes deeper than that. Certain fibres act as prebiotics, feeding beneficial gut bacteria. These bacteria produce compounds known as short-chain fatty acids (SCFAs), including butyrate, which plays a role in maintaining the integrity of the gut lining and regulating inflammation. A 2019 review published in The Lancet found that higher dietary fibre intake was consistently associated with improved gut health markers and reduced risk of several chronic conditions. The key takeaway wasn’t a single “superfood”, but the cumulative effect of consistent fibre intake over time. There’s also increasing interest in how microbiome diversity influences overall health. A more varied intake of fibre tends to support a more diverse gut environment, which is linked to better resilience and function. For those looking to improve their training routines and hit new PBs, a well-functioning gut is central to recovery. This is because fibre supports the gut environment, which in turn affects how efficiently nutrients are absorbed. More stable energy levels When it comes to your energy, it isn’t just about calorie intake. It’s also key to ensure your body can effectively process these calories. This is where fibre can be highly beneficial. This is because fibre slows the digestion of other carbohydrates, leading to a more gradual release of glucose into the bloodstream. This helps avoid the sharp spikes and dips that can come from highly refined meals. Studies also show that diets higher in fibre are associated with improved glycaemic control, even in otherwise healthy individuals. In practical terms, this often leads to: More consistent energy across the day Fewer mid-afternoon crashes Reduced reliance on quick fixes like sugar or caffeine For those balancing work, training, and recovery, the more stable blood sugar levels provided by fibre mean more consistent energy availability. This can translate into better training sessions, particularly for longer or more demanding workouts. Appetite regulation High fibre foods tend to be more filling due to their volume and slower digestion. At the same time, they influence hormones involved in hunger and fullness, including ghrelin and peptide YY. There’s also a hormonal aspect to this. Fibre-rich foods can influence the release of satiety hormones, helping your body better recognise when it’s full. This creates a more sustainable approach to body composition. Instead of relying on weight loss restriction, your diet supports appetite regulation more naturally. Heart Health and Long-Term Outcomes In addition to the shorter-term health and wellness benefits, fibre intake also has a beneficial impact on long-term health. Soluble fibre, in particular, has been shown to help reduce LDL cholesterol by binding to cholesterol in the digestive system and aiding its removal. Large cohort studies have consistently linked higher fibre intake with a reduced risk of cardiovascular disease and type 2 diabetes. This is partly due to improved blood sugar regulation and partly due to the broader metabolic benefits of a fibre-rich diet. One study in particular by the BMJ found that each additional 7g of fibre per day was associated with a 9% reduction in cardiovascular disease risk. These outcomes aren’t immediate, but they reinforce the role of fibre as a long-term investment in health. High Fibre Diet Foods We’ve written about his previously (see here for our guide on high fibre foods) but in short, building a high fibre lifestyle doesn’t require a complete overhaul of your current diet. It’s instead about increasing variety and making more intentional choices within your existing routine. Below we have outlined some key foods that can help increase fibre intake. Whole grains Oats, brown rice, quinoa, and wholegrain bread provide a steady source of fibre while supporting sustained energy. They’re an easy upgrade from refined grains and tend to be more filling. Fruits and vegetables Eating more fruit and vegetable is one of the simplest ways to raise fibre intake. A useful approach is to focus on variety: Berries and apples for convenience Leafy greens for micronutrient density Root vegetables for more substantial meals Legumes Lentils, chickpeas, and beans are among the most fibre-dense foods available. 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
The Complete Guide to Digestive Enzymes
How you digest your food has a direct impact on how you perform, recover and feel day to day. It’s not just about what you eat, but how well your body is able to break it down and use it. A heavy feeling after meals, inconsistent energy, or food that doesn’t quite sit right (on top of being uncomfortable) can all point back to how well your body is breaking things down. Digestive enzymes play a central role in this process. They’re responsible for breaking down the food you eat into forms your body can absorb and use. When that process runs smoothly, there’s a noticeable difference in how you feel day to day. To clear up any confusion around digestion, this guide explores digestive enzymes in detail - what they are, what they do, where they’re produced, and how they fit into a modern, performance-led lifestyle. Shall we get into it? What are digestive enzymes? 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. Protease (Protein): Protease enzymes reduce proteins into amino acids. This is particularly relevant for those consuming higher-protein diets, as efficient breakdown supports recovery and muscle repair. Lipase (Fats): Lipase breaks down fats into fatty acids and glycerol. These components are essential for energy production and overall metabolic function. This breakdown is essential because nutrients cannot be absorbed in their original form. If digestion is incomplete, absorption becomes less efficient. Other enzymes, such as lactase, play more specific roles, for example helping to digest lactose found in dairy products. Together, these enzymes form a system that adapts to the composition of each meal. Research also highlights the link between digestion and how much of these nutrients your body can actually use. 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