icon-account icon-glass

Popular Products

The Lean Protein
Whey protein powder for weight-loss.
The Energy Booster
Pre/intra-workout powder with BCAAs.

What Supplements Should I Take On A Daily Basis?

27th March 2025

27th March 2025

By Zak Hillard

Even with a balanced diet and the best intentions, it’s not easy to make sure your body is getting all the essential nutrients it needs to do its job properly.

From supporting your energy levels and immunity to aiding muscle recovery and cognitive performance, the right supplements can be the secret weapon you need to make a noticeable difference in how you feel day-to-day.

However, it isn’t always quite that straight forward. With so many opinions and guidelines out there, it can be tough to figure out which are the best supplements for your health.

For those wondering ‘what supplements should I be taking?’ Let’s break it down.

The most important daily supplements

To tackle the question of what you should be taking daily to enhance your bodies performance, we’ll go over some of the core supplements which can have the biggest impacts on your general health. Depending on your own personal diet and lifestyle, your own specific needs can differ, so read through to find which ones might be best for you.

Fibre

We’re gonna shock you with a stat. Only 9% of UK adults meet the daily recommended amount of fibre. Suitably shocked? Good.

Fibre is found in many different foods, but in order to get enough you need to be eating a pretty varied and nutritious diet. Sadly, lots of us are not. A diet low in fibre can lead to a range of digestive problems (such as constipation, bloating and IBS), as well as heart disease and some cancers.

As such, a fibre supplement can be one of the best supplements for your health and is a great way to ensure things are moving smoothly in the bathroom.

Vitamin C

Vitamin C is one of the most widely-known vitamins, famous for its presence in a humble glass of orange juice. Our bodies don’t produce vitamin C organically, so working it into your diet through foods, drinks or supplements is important.

Vitamin C aids the biosynthesis of collagen, L-carnitine and some neurotransmitters, as well as playing a role in protein metabolism.

There are a host of other benefits, from acting as an important antioxidant to boosting your natural immunity, so this is one to consider for your new supplement spread.

Our The Tone Capsules also include vitamin C alongside a host of other beneficial nutrients - just sayin…

Vitamin D

 Vitamin D is important in a lot of ways, but especially for our bone health, immune function and – perhaps most famously – mood regulation.

Unfortunately, if you’re in the UK you’re almost certainly deficient in this as we get most of our vitamin D from the sun. Even if you’re lucky enough to live where the sun shines regularly, keeping your vitamin D levels topped up can make a significant difference to how you feel every day.

This is one to get on the list ASAP.

Omega-3 (Fish Oil)

Fish oil may not sound like the most appetising to start your day with, but many people can be deficient in omega-3 fatty acids for a few reasons. If you don’t eat much fish or are pregnant/breastfeeding, it can be a good idea to top up on this one.

Studies have shown that omega-3 may support heart and eye health, reduce inflammation and help treat mental decline and certain mental health conditions.

Probiotics and prebiotics

Probiotics and prebiotics are quite a hot topic at the moment, with their impacts on gut health a major point of interest.

Our gut microbiome is essentially our gut’s ecosystem – bigger than the average human brain and containing trillions of bacteria. As such a complex beast, it doesn’t take much to throw it off. Regularly taking pro- and pre-biotics can help to maintain the natural balance of your gut microbiome which can play a big role in not just our gut health, but our wider health, too.

Did you know, our gut is often called our ‘second brain’ – it’s that important. A misbalanced gut microbiome can lead to all sorts of problems, from digestive symptoms all the way to mental health issues. In fact, our gut produces around 95% of our body’s serotonin (the ‘feel-good’ chemical), so it’s crucial to get this one right.

Pro-and pre-biotics work together (pro-biotics work to strengthen your ‘good’ gut bacteria, and pre-biotics act as food for the pros) – so make sure you’re striking a good balance.

Looking for an easy way to get both of these into your diet more regularly? Check out our The Digest Capsules.

Calcium 

Calcium is super important for your bones, but also your heart, muscles and nerves. Most adults need around 700mg per day, which is usually doable within a normal diet.

However, if you follow a vegan diet, are lactose intolerant or don’t consume dairy, you might be falling short of your daily requirements. If so, a calcium supplement can be a great choice to support your general health.

Magnesium

Magnesium is an easy one to overlook when considering the best supplements for your health, but it offers some pretty significant benefits.

Every cell in your body needs magnesium to function, so it’s pretty important stuff. Magnesium can help to regulate your blood sugar levels, benefit athletic performance, support better sleep, promote heart health and even help to fight depression.

Studies have shown that a high proportion of the UK population are deficient in magnesium too, so this is another important one to top up on. 

Iron 

Iron is another common deficiency manner suffer from, in the form of anaemia. However, supplementing iron isn’t only beneficial for those significantly deficient in it.

A study evaluated iron supplementation and found that even for those not fully deficient in it, self-fatigue was significantly reduced. Iron is vital for energy production, oxygen transportation and the immune system, so it makes sense that supplementing this will help your body to run more efficiently and provide you with more energy.

If you’re looking for peak performance, our The Rise Capsules contain iron and a bunch of other energy-boosting nutrients to keep you firing on all cylinders

Protein

To wrap it all up, let’s talk protein.

Protein is one of the most invaluable nutrients found in the body. It acts as the building block for tissue to repair damage, provide you with energy and strengthen every aspect of your body – from your muscles and skin to your hair and nails.

On the whole, UK citizens are pretty good at hitting their required protein intake, but if you’re looking for gains, you might be searching for a simple way to level up your protein game. Innermost offers a range of protein-packed products with a host of other nutritious goodies found in them, too. Add one of these to your daily routine and give your body more of what it needs.

What supplements should I take?: your daily drivers 

Finding the right mix of supplements for your own individual needs can be a challenge, but hopefully this guide offers you some insight into which are the most important supplements, and which ones you might personally benefit from most.

There are many other supplements and nutrition products on the market to consider, but if you use these as a baseline, you’ll be on your way to feeling and looking your best in no time.

Check out our range of capsules and proteins to find an easy way to boost your daily nutritional intake.

Need Expert Advice?

Other Insights

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
I've Been Taking The Glow Blend For Six Months. Here's What Happened
There's an uncomfortable truth about founders who sell supplements: most of us are too invested in our own products to give you an honest account of what they actually do. I want to try something different with this email. I’ve been taking The Glow Blend every day for six months. What follows is a genuine account of what I expected, what I noticed, what I wasn't sure about, and what I didn't notice at all. I'm telling you this partly because I think you deserve that level of honesty from the person who formulated the product, and partly because the honest account is actually more useful than a testimonial. What the evidence says before I get into my own experience Collagen is the most abundant protein in your body. It gives skin its structure and elasticity. From your mid-twenties, your body produces less of it each year. By the time most people start thinking about skin supplementation, they've already lost a meaningful amount. Hydrolysed collagen peptides, which is what's in The Glow Blend, are different from the collagen your body produces. They're pre-broken into smaller chains, which makes them bioavailable in a way whole collagen protein is not. When you consume them, they circulate in the bloodstream, where studies suggest they signal fibroblasts to produce more collagen. The mechanism is real. The research is there. The timeline The strongest evidence on collagen supplementation shows meaningful changes in skin elasticity and hydration typically at 6-8 weeks minimum, with more substantial effects at 10-12 weeks and beyond. Studies on nail growth and hair strength follow a similar curve. This is not a two-week product. Anyone selling you collagen on a 30-day challenge framework has either not read the research or has chosen to ignore it. Vitamin C as a co-factorVitamin C is not optional in this equation. It's essential for collagen synthesis at a cellular level. Without adequate vitamin C, your body cannot complete the process of building new collagen fibres regardless of how much collagen you're consuming. This is why The Glow Blend includes it, and why most budget collagen products either leave it out or include a token dose that doesn't meet the threshold. The Glow Blend also contains hyaluronic acid, which is a glycosaminoglycan that attracts and holds water within the skin. Biotin (B7) supports keratin production, which is the structural protein in hair and nails. Folic acid (B9) plays a role in cell regeneration. Each of these is in the formulation for a specific, evidence-based reason.  What I noticed and what I didn't I started in December. Six months ago. I'll be honest: December is a difficult month to start an experiment. My diet was inconsistent, my sleep was disrupted, and my skin was already taking a beating from dry air and a bit too much running around. I didn't expect to notice much quickly, and I didn't. By week six, my skin felt more comfortable. Not dramatically different. More comfortable is the right word. Less tight in the morning. Less reactive to changes in temperature. I noticed it most on long-haul flights, where my skin used to feel genuinely awful after landing and increasingly didn't.By month three, I think that my nails were growing a little faster mainly because I was cutting them more often. Whether that's the biotin, the collagen peptides, or the combination, I can't tell you, and the research doesn't give a clean answer either. I keep my nails short anyway, so my nails weren't the thing I was watching most closely (or noticed for that matter). What I was watching was my hair. I'm older now than when I launched Innermost, and density is something I'm acutely aware of. The Glow Blend contains biotin and folate, both of which support hair health, so this is where my attention went. Over these six months: a bit thicker, a bit more resilient. I keep my hair short, so I'm not pointing to length. It's the feel and the density. I'm not going to dress that up into something it isn't. I'll just say it's been one of the more encouraging parts of the experience, and at this stage that counts for a lot.Skin texture improved. This one is harder to quantify because it's subjective. But my skin looks better now than it did in December. Some of that is the improvement in light. Some of it is that I'm trying to sleep better. But I've taken enough data points over six months to think the supplement is contributing something real. Where most products fall short The collagen category is full of underdosed products. The research on skin elasticity uses doses of 2.5g to 10g of collagen peptides per serving. A significant proportion of products on the market deliver less than 1g under the assumption that customers won't check. The Glow Blend delivers 5g of hydrolysed collagen peptides per sachet, alongside the vitamin C that makes the process work. That's where the formulation sits relative to the evidence. It's not arbitrary. My honest recommendation If you're thinking about trying The Glow Blend, I'd say this: give it twelve weeks before you draw any conclusions. The evidence doesn't support a shorter timeline and neither does my personal experience. Take it consistently. The days you forget are the days the benefit doesn't accumulate. Read more