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The Science of Post Workout Recovery: How to Maximise Muscle Growth and Repair

22nd April 2024

22nd April 2024

By Shivraj Bassi

Training hard and challenging yourself during your workouts is key to progressing and building muscle, but did you know the true growth happens outside of the gym? To build new muscle effectively, it’s vital to optimise your recovery process, restoring energy and providing your body with the nutrients it needs to grow. Today, we’ll look into what happens to your body post workout and what you can do to maximise your results, leading to faster recovery and better gains.

What Happens Post Workout?

Strenuous training, whether that be resistance raining with weights, calisthenics, HIIT or even cardio, causes microscopic tears in your muscle tissue, which can lead to soreness and fatigue. This often happens a day or two after the workout and is known as DOMS (Delayed Onset Muscle Soreness). DOMS is completely normal and nothing to worry about, but it’s a good sign that your body is in need of support! With proper nutrition and recovery protocols, DOMS should go away in 2-5 days. If it persists for longer then this may be a sign of an injury and you may need medical attention. So, we know that we may experience some soreness after a workout, but what is happening as a response to that? Well, the body undergoes a number of physiological processes, each of which is important to understand and consider if we are to best optimise our recovery. 

Protein Synthesis

Protein synthesis is the most crucial part of muscle repair. Following a workout, your body activates pathways that increase the production of new proteins, essential for rebuilding damaged muscle fibres. To do this effectively, however, you must consume an adequate amount of protein. As amino acids are the building blocks of protein, it’s important to ensure that the protein sources you consume are complete, meaning they contain all the amino acids. Supplementing with a protein powder, such as our own Strong Protein, can assist with this.

Many fitness enthusiasts once hypothesized that there was an ‘anabolic window’, or a set period of time within which you needed to consume protein post workout in order to grow effectively. This has since been proven to be a myth, but the idea is rooted in common sense. Since training causes muscle damage, it’s logical to kick start the recovery process as soon as possible by consuming the nutrients needed for it. So, whilst you won’t lose all your gains if you don’t eat right after a workout, it certainly does make sense!

Inflammation and Immune Response

While inflammation often has negative connotations, it plays a vital role in muscle repair. Exercise-induced muscle damage triggers an inflammatory response, recruiting immune cells to the damaged site. This process clears debris and initiates tissue repair. However, excessive inflammation can impede recovery, emphasizing the importance of managing inflammation post-exercise. Techniques such as foam rolling, coupled with adequate nutrition and sleep, are great for reducing inflammation to manageable levels.

Glycogen Replenishment

Glycogen is glucose that is stored in muscle tissue. It is used as a primary energy source by your muscles, especially during intense activity such as weight training. Glycogen is also what’s responsible for the ‘full’ look of muscles; when your glycogen stores are depleted it can make your physique look flat and your muscles feel smaller. This is nothing to worry about though! It’s just a sign that you need to replenish your glycogen levels, which can be achieved by consuming carbohydrates with a high glycaemic index. Foods such as white rice and potatoes are ideal for this, though supplementing with a carbohydrate powder such as cyclic dextrin or Vitargo may also be of benefit if you’ve had a particularly intense session.

The Most Important Things to Optimise for Maximum Muscle Growth

Nutrition

A balanced post-workout meal containing protein and carbohydrates is essential for muscle recovery. Aim for a protein source rich in essential amino acids, such as chicken, fish, eggs, or plant-based options like tofu or legumes. Pair it with carbohydrates to replenish glycogen stores and facilitate protein synthesis. Additionally, incorporating anti-inflammatory foods like berries, leafy greens, and fatty fish can help manage post-exercise inflammation.

Hydration

Dehydration can impair muscle recovery and performance. Adequate hydration is essential for nutrient transport, waste removal, and maintaining cellular function. Replenish lost fluids by consuming water or electrolyte-rich beverages post-workout. Electrolytes like sodium, potassium, and magnesium play vital roles in muscle function and overall hydration. 

Rest and Sleep

Rest is as crucial as exercise for muscle recovery. During sleep, the body releases growth hormone, facilitating tissue repair and regeneration. Aim for 7-9 hours of quality sleep per night to optimise muscle recovery. Additionally, incorporating rest days into your workout routine allows you muscles time to repair and adapt to training stimuli. 

Active Recovery

Engaging in low-intensity activities like walking, yoga, or swimming on rest days promotes blood flow to muscles, aiding in nutrient delivery and waste removal. Active recovery accelerates the clearance of metabolic byproducts, reducing post-exercise soreness and enhancing recovery. 

Foam Rolling and Stretching

Foam rolling and stretching can alleviate muscle tightness and improve flexibility, enhancing overall recovery. These techniques increase blood flow to muscles, reducing inflammation and promoting relaxation. Incorporate foam rolling and stretching into your post-workout routine to promote accelerated recovery and reduce the chance of injury.

Supplements

While whole foods should be your primary source of nutrients, supplements definitely have their place in your post-workout recovery regimen. A high-quality protein powder should be your first purchase, along with a good multivitamin. From here, you can consider what will best help you achieve your goals. For optimal recovery, we highly recommend our own Recover Capsules, which are specially formulated to aid your recovery process, reduce inflammation and regulate your hormones.

Getting the best results from your training is a complicated puzzle with many pieces. Even with the perfect workout plan, your results will be compromised without adequate nutrition and adhering to proper recovery protocols. We hope that this guide to post exercise recovery helps you in your own training, but if you do have any questions, why not book a consultation today with one of our dedicated nutritionists? They’ll be able to best advise on your current routine and help you get the most out of your workouts with proper supplementation and nutrition. Above all, enjoy your workouts and embrace a fitter, healthier lifestyle today!

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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