Health & Wellness Blog | Expert Tips & Advice - The Health Improvers

Nootropic Ingredients Explained: Bacopa, Ginkgo, Ginseng, L-Theanine and Caffeine
What each ingredient in a brain supplement actually is, what dose is typical, which ones carry interactions worth knowing about, and which of them are legally allowed to claim anything. Read more...
What Is a Nootropic? The Word, the Law, and What a UK Label May Actually Say
"Nootropic" has no legal definition in Great Britain. Here is where the word came from, what UK law actually permits a brain supplement to say, and how to read a label once you know the rules. Read more...
Best UK Nootropic & Brain Supplements 2026 — An Honest Comparison
Brain supplements range from a pharmacy multivitamin with ginkgo in it to a twenty-ingredient stack. Here is what separates them, which nutrients are legally allowed to claim anything, and what to check on the label before you buy. Read more...
Caraway seeds on cream linen — a UK buyer's guide to digestive enzyme supplements, covering activity units, enzyme source and label transparency
Best UK Digestive Enzyme Supplements 2026 — An Honest Buyer's Guide
Enzyme supplements are the easiest category in which to hide behind a big number. This guide gives you the six checks that separate them — starting with the one that... Read more...
Fresh peppermint leaf on cream linen — a plain guide to digestive enzymes, covering amylase, protease and lipase and where supplement enzymes come from
What Are Digestive Enzymes? A Plain Guide
Amylase, protease and lipase are the three main digestive enzymes, and each acts on a different part of a meal. Here is what they are, where supplement enzymes come from,... Read more...
Fennel seed on cream linen — explaining enzyme activity units SKB, HUT, GDU and USP, and why milligram weights alone cannot be compared
Enzyme Activity Units Explained: SKB, HUT, GDU and Why Milligrams Tell You Nothing
A digestive enzyme label quoting only milligrams is telling you almost nothing. Enzymes are measured by activity, in units like SKB, HUT and GDU — here is what each one... Read more...
Barley grass on cream linen — comparing greens powder and greens capsules, and how to choose between a 15g scoop and a capsule format
Greens Powder or Capsules? How to Choose
The same organic blend comes as a 15g scoop or a capsule, and the right one depends less on nutrition than on whether you will keep taking it. Here is... Read more...
Spirulina powder on cream linen — an ingredient guide to what goes into a greens powder, from grasses and algae to berries, mushrooms and seeds
What's Actually in a Greens Powder? A UK Ingredient Guide
Greens powders group forty-odd ingredients into six families that each do a different job. Here is what grasses, algae, berries, vegetables, mushrooms and seeds are actually there for, and what... Read more...
Fresh wheat grass on cream linen — a UK buyer's guide to choosing a greens powder, covering organic certification, mushroom type and label transparency
Best UK Greens Powders 2026 — An Honest Buyer's Guide
Greens powders are sold on ingredient counts and photographs of kale. This guide explains the three checks that actually separate them — certification, mushroom type and what the label admits... Read more...
Rosehips on cream linen — explaining how much vitamin C you need daily, the 80mg reference intake and what happens at higher doses
How Much Vitamin C Do You Actually Need?
The UK reference intake is 80mg. Most supplements sell 1000mg. Here is where those numbers come from, what happens to the difference, who genuinely needs more, and why a supplement... Read more...
Acerola fruit on cream linen — comparing fruit-derived vitamin C with added ascorbic acid and what the difference actually is
Food-Form vs Ascorbic Acid: Does the Source of Vitamin C Matter?
Fruit-derived and synthetic vitamin C are the same molecule — so the real question is not which is absorbed better, but which suits how you take it. Here is what... Read more...
Acerola cherries on cream linen — a UK buyer's guide to choosing a vitamin C supplement and understanding dose and source
Best UK Vitamin C Supplements 2026 — An Honest Buyer's Guide
Most vitamin C in Britain is sold at 1000mg, which is twelve times the reference intake. This guide explains why the dose on the front of the pack is the... Read more...
One multivitamin capsule taken daily with water — an honest look at who benefits from a multivitamin and who probably does not
Do You Need a Multivitamin? Who It's For, and Who It Isn't
Most people who take a multivitamin have a good reason to. Here is who benefits most, what to look for, and the two things UK health advice says to take... Read more...
The back label of The One multivitamin showing the supplement facts panel and %NRV column used to check whether a nutrient is present at a meaningful level
Why 17 Nutrients Can Beat 50: The Multivitamin Dusting Problem
Multivitamins compete on how many nutrients they list, which is the wrong number to compete on. Here is what fairy dusting is, how the 15% NRV threshold exposes it, and... Read more...
Fresh whole foods laid out on a pale surface — a UK buyer's guide to choosing a multivitamin and reading the %NRV column
Best UK Multivitamins 2026 — An Honest Buyer's Guide
Multivitamins are the most bought and least understood supplement in Britain. This guide explains the 15% NRV threshold that separates a real dose from a decorative one, compares the formats,... Read more...
A simple flat lay of supplement ingredients — illustrating the four conditions attached to the authorised glucomannan weight loss claim
Glucomannan and Weight Loss: What the Authorised Claim Actually Requires
Glucomannan holds one of the only authorised weight loss claims in Great Britain — and it comes with four conditions attached. Here is what each one means, why they are... Read more...
Konjac root powder on cream linen — explaining what glucomannan is, where it comes from and why it must be taken with water
What Is Glucomannan? The Konjac Fibre, Explained
Glucomannan comes from the root of the konjac plant and behaves unlike most fibres you will have taken. Here is what it is, where it comes from, how it behaves... Read more...
Glucomannan powder on cream linen — a UK buyer's guide to choosing a glucomannan supplement and checking the 3g daily intake the claim requires
Best UK Glucomannan Supplements 2026 — An Honest Buyer's Guide
Glucomannan is one of a handful of ingredients in Great Britain with an authorised weight loss claim. Almost nobody sells it correctly. This guide explains the conditions the claim carries,... Read more...
Bilberry fruit, a traditional botanical used in eye supplements — bilberry and eye health
Bilberry and Eye Health: Sorting the Myth from the Evidence
The famous WWII pilot story, what bilberry actually is, how it differs from blueberry, and an honest look at where the evidence stands — plus why pine bark keeps it... Read more...
Lutein, a carotenoid of the eye's macular pigment — lutein and zeaxanthin explained
Lutein and Zeaxanthin: The Eye Carotenoids, Explained
What lutein and zeaxanthin are, where they come from, why they're in nearly every eye supplement — and the one labelling trick to watch for when comparing products. Read more...
Pine bark, a plant antioxidant used in eye supplements — a UK guide to choosing an eye-health supplement
Best UK Eye Health Supplements 2026 — An Honest Guide
How to choose an eye-health supplement in the UK — the one nutrient with an authorised vision claim, the ingredients worth looking for, and an honest look at what the... Read more...
Nattokinase Complex supplement — nattokinase safety guide, who should not take it
Nattokinase Safety: Who Should Not Take It
Nattokinase is one of the few supplements with genuine, specific safety considerations. If you take certain medications or are due for surgery, it may not be for you. Here is... Read more...
Nattokinase Complex capsules — the enzyme from fermented natto soybeans, standardised to 2000 FU
What Is Nattokinase? The Enzyme from Natto, Explained
Nattokinase comes from a traditional Japanese fermented food. Here is what it is, how it is made, why it is measured in fibrinolytic units rather than milligrams, and what that... Read more...
Nattokinase Complex supplement by The Health Improvers — a UK guide to choosing a nattokinase supplement
Best UK Nattokinase Supplements 2026 — An Honest Guide
Nattokinase is sold on bold cardiovascular claims that no UK seller is actually allowed to make. Here is what it is, the one number that matters when comparing products, and... Read more...
Spirulina and chlorella algae powder — what green algae supplements actually are
Chlorella and Spirulina: What Algae Supplements Actually Are
Chlorella and spirulina are two of the most hyped 'superfoods' going. Here is what they genuinely are, what the labels can and cannot claim, and how to choose one worth... Read more...
Kelp seaweed — natural source of iodine for thyroid function
Iodine and Thyroid Function: What It Does and How Much You Need
Iodine is one of the few supplement nutrients with solid, authorised health claims — and one of the easiest to get wrong in both directions. Here is what it does,... Read more...
Seaweed on cream linen — a UK guide to choosing a seaweed and iodine supplement
Best UK Seaweed & Sea-Greens Supplements 2026 — An Honest Guide
Seaweed supplements are sold on 'detox' and 'alkalising' claims that mean very little. Here is what actually matters — iodine content, source, and safety — from a UK seller who... Read more...
Whole and halved beetroot with a bowl of beetroot powder on cream linen — a UK guide to choosing a beetroot supplement
Best UK Beetroot Supplements 2026 — An Honest Comparison
Beetroot supplements come as juice, powder, capsules and gummies — at wildly different strengths. Here is how to choose one you will actually keep taking, and what to check on... Read more...
Montmorency tart cherries beside a bowl of cherry powder on linen — what the evidence says about tart cherry supplements
Montmorency Tart Cherry: What the Evidence Actually Says
Montmorency is one of the most-studied botanical ingredients in sports nutrition. Here is what the research has looked at, why the variety on the label matters, and how to choose... Read more...
Fresh beetroot and beetroot powder — how dietary nitrates from beetroot work
Dietary Nitrates Explained: How Beetroot Works and Who It Suits
The nitrate–nitric oxide pathway is why beetroot is studied at all. Here is how it works, the three practical things that affect whether you get the most from a beetroot... Read more...
Hands examining the reverse of an unlabelled supplement bottle with reading glasses on cream linen
How to Read a Supplement Label (Line by Line)
Supplement labels are dense, badly designed and full of terms nobody explains. Here is what every section actually means — including the ones designed to be skimmed past. Read more...
Supplement capsules beside plain documents and a brass seal on cream linen — supplement quality certifications explained
GMP, ISO 22000 and HACCP: What Supplement Certifications Actually Mean
Some supplement badges represent independently audited standards. Others are marketing with a logo. Here is how to tell which is which — and how to verify a claim yourself. Read more...
Magnifying glass and unlabelled supplement bottle on cream linen — understanding UK supplement health claims
Supplement Health Claims: What's Legal and What's Marketing
UK supplement claims are tightly regulated, and the rules are public. Understanding them turns marketing copy into a reliable signal about who you are buying from. Read more...
how-to-choose-a-supplement-uk-guide
How to Choose a Supplement: A Straight-Talking Guide for UK Buyers
Most supplement marketing is designed to confuse you. Here is how to read a label, understand %NRV, spot a meaningless certification, and work out whether a product is worth your... Read more...
Brass apothecary scales weighing supplement capsules on cream linen — understanding %NRV
What Does %NRV Actually Mean on a Supplement?
NRV is the most useful number on a supplement label and the least understood. Here is what it means, why 15% is the number that matters, and why 1,000% is... Read more...
Creatine Myths vs Facts: What the Evidence Actually Says
Creatine Myths vs Facts: What the Evidence Actually Says
The most common creatine myths — steroid fears, kidney worries, water weight, 'only for bodybuilders' — checked against the evidence, plus who the research says can benefit. Read more...
Creatine Monohydrate: How to Take It (Dose, Timing & Loading)
Creatine Monohydrate: How to Take It (Dose, Timing & Loading)
A practical UK guide to taking creatine monohydrate — the 3g daily dose tied to the authorised claim, optional loading, timing, how to mix it, and why consistency beats everything. Read more...
Best UK Creatine Supplements 2026 — An Honest Buyer's Guide
Best UK Creatine Supplements 2026 — An Honest Buyer's Guide
An honest UK buyer's guide to creatine for 2026 — why monohydrate is the gold standard, the authorised performance claim and the 3g/day that unlocks it, dosing, and what actually... Read more...
Collagen, Skin, Hair & Nails: What the Science (and the Rules) Say
Collagen, Skin, Hair & Nails: What the Science (and the Rules) Say
An honest UK guide to collagen for beauty-from-within — why collagen itself can't legally claim to help skin, hair and nails, and which added nutrients (Vitamin C, Biotin, Zinc) actually... Read more...
Marine vs Bovine Collagen: What's the Difference?
Marine vs Bovine Collagen: What's the Difference?
A plain-English UK comparison of marine and bovine collagen — collagen types, sources, absorption, sustainability and dietary fit — to help you pick the right one. Read more...
Best UK Collagen Supplements 2026 — An Honest Buyer's Guide
Best UK Collagen Supplements 2026 — An Honest Buyer's Guide
An honest UK buyer's guide to collagen supplements for 2026 — marine vs bovine, types and bioavailability, the dose that matters, and the truth about what collagen can and can't... Read more...
A Guide to Vegan Protein Powders: Pea, Hemp & Rice Compared
A Guide to Vegan Protein Powders: Pea, Hemp & Rice Compared
A plain-English UK guide to the main plant proteins — pea, hemp and rice — their amino profiles, fibre, taste and why the best vegan powders blend sources for a... Read more...
Whey vs Plant Protein: How to Choose the Right One
Whey vs Plant Protein: How to Choose the Right One
An honest UK comparison of whey and plant protein powders — completeness, digestion, taste, dietary fit and cost — so you can pick the one that suits your body and... Read more...
Vitamins & Minerals for Immune Support: A UK Guide
Vitamins & Minerals for Immune Support: A UK Guide
A plain-English UK guide to the vitamins and minerals with authorised immune claims — Vitamin C, Vitamin D, Zinc, Selenium, Vitamin B6, Copper, Folate and more — and how to... Read more...
How the Immune System Works (And the Nutrients That Support It)
How the Immune System Works (And the Nutrients That Support It)
A plain-English guide to how your immune system works, plus the vitamins and minerals with authorised claims for supporting normal immune function — Vitamin C, Vitamin D, Zinc and Selenium. Read more...
Fruiting Body vs Mycelium: How to Read a Mushroom Supplement Label
Fruiting Body vs Mycelium: How to Read a Mushroom Supplement Label
The single most useful thing to understand when buying mushroom supplements — fruiting body vs mycelium-on-grain, beta-glucan levels, extract ratios and why the label wording matters. Read more...
A Guide to Functional Mushrooms: Lion's Mane, Reishi, Chaga & More
A Guide to Functional Mushrooms: Lion's Mane, Reishi, Chaga & More
A plain-English introduction to the popular functional mushrooms — lion's mane, reishi, chaga, cordyceps, shiitake, maitake and turkey tail — their traditional use, and what UK rules allow a supplement... Read more...
Ingredients Used in Joint Supplements: A UK Guide
Ingredients Used in Joint Supplements: A UK Guide
A plain-English UK guide to what's inside joint supplements — glucosamine, chondroitin, MSM, turmeric, collagen and vitamin C — including which one carries an authorised claim and what the shellfish... Read more...
Joint Health Basics: What Affects Your Joints as You Age
Joint Health Basics: What Affects Your Joints as You Age
A plain-English guide to how joints work, what changes with age and activity, and the everyday habits — plus the one nutrient with an authorised joint claim — that support... Read more...
What Is Ashwagandha? An Honest Look at the Ancient Adaptogen
What Is Ashwagandha? An Honest Look at the Ancient Adaptogen
A plain-English introduction to ashwagandha — where it comes from, its place in Ayurveda, what the word 'adaptogen' actually means, and how UK supplement rules shape what can be said... Read more...