Are Nutrition Geeks Supplements Any Good? We Scored All 14

Nutrition Geeks sells 14 supplements on Amazon UK. Every single one costs under £10. Every single one ships in a flat-pack letterbox-friendly pouch. Every single one claims to be UK-manufactured. And not one of them carries independent third-party testing certification — no NSF, no USP, no Informed Sport. The brand's certification score averages 35.4 out of 100, the lowest of any brand AIScored has profiled to date.

That finding, on its own, would be unremarkable. Plenty of Amazon marketplace brands skip third-party testing. What makes Nutrition Geeks worth examining is that the rest of their numbers are surprisingly solid. The brand averages 69.4/100 overall — not exceptional, but firmly mid-table. Their value-for-money scores are genuinely strong at 81.4/100, driven by aggressive pricing and generous supply durations (365-tablet year supplies are their signature format). Effectiveness scores sit at a respectable 72.3/100, with several products — particularly their Vitamin B12, Creatine, and Lion's Mane — drawing consistently positive reviewer feedback.

The question this report attempts to answer is straightforward: can a brand that prices everything under a tenner deliver adequate quality, or is the low price itself the warning sign? After scoring all 14 products across five dimensions — effectiveness, ingredient quality, value for money, side effects, and certifications — the answer is more mixed than either cheerleaders or sceptics might expect.

If there is one thing Nutrition Geeks does well, it is pricing. The average product costs £8.49. The cheapest — their Biotin 180-tab, Iron + Vitamin C, and Turmeric — retail at £6.99. The most expensive items in the range — Lion's Mane, Magnesium Glycinate, and Creatine — top out at £9.99. Every product in the range costs less than a supermarket meal deal for two.

The low pricing isn't just for show. The brand consistently packages in large-count formats: 365 tablets is their standard for single-ingredient supplements, delivering a full year's supply in one purchase. Their Vitamin D 4000iu — 365 tablets for £7.99 — works out to roughly 2.2p per day. Their Iron 14mg at the same count and price point is comparable. For context, Holland & Barrett's own-brand Vitamin D 1000iu (90 tablets) costs around £6.99, delivering three months for the same price as Nutrition Geeks' twelve.

The value-for-money dimension score of 81.4/100 reflects this. It is comfortably the brand's strongest metric, and it is not artificially inflated by low quality elsewhere — the tablets themselves are consistently described by reviewers as small, easy to swallow, and free of aftertaste. The letterbox-friendly pouch packaging eliminates missed-delivery friction. These are design choices that suggest someone at Nutrition Geeks has thought carefully about the customer experience, even if they have not invested in the verification infrastructure to match.

The top third of the Nutrition Geeks range is genuinely competitive. Their Vitamin B12 1000mcg (75/100) uses a dual-form complex of Methylcobalamin and Adenosylcobalamin — a formulation approach with clinical support for improved bioavailability over the cheaper cyanocobalamin used by many budget competitors. Reviewers report measurable improvements in energy and fatigue, with one confirming raised blood levels via lab testing.

Their Creatine Monohydrate (74/100) is a straightforward, unflavoured powder that does what creatine does — reviewers note strength and recovery improvements consistent with the well-established research base. At £9.99 for 90 servings, it undercuts most branded alternatives significantly, though the absence of a Creapure or equivalent certification means purity is taken on trust.

The Lion's Mane (73/100) stands out for its 15:1 extract standardised to 50% polysaccharides — above average for the UK market — combined with Vitamin B1 and black pepper for absorption. Reviewer feedback on cognitive focus is consistently positive. However, two of twelve reviewers reported notable side effects including anxiety episodes and vivid nightmares, a higher adverse reaction rate than competitors in the same category.

All three Vitamin D products score between 73 and 74, with the Vegan D3 1000iu earning particular praise for its algae-derived cholecalciferol — one of the few genuinely vegan D3 sources on the market. The 4000iu variant's omission of Vitamin K2, widely recommended at that dose level for calcium metabolism, is a formulation gap worth noting.

The bottom of the range tells a different story. The Biotin 10,000mcg year supply (57/100) is the brand's weakest product and one of the lowest-scoring supplements in its category on AIScored. At 333 times the EU Nutrient Reference Value, the dose is dramatically higher than clinical evidence supports for individuals without confirmed biotin deficiency. Reviewer outcomes are starkly divided — some report visible hair improvement, while a significant minority report nothing whatsoever after months of use. The product also carries no third-party verification of its extremely high dose claim.

The Apple Cider Vinegar capsules (60/100) present a different concern. Roughly 30% of reviewers report digestive side effects — acid reflux, stomach pain, headaches — a rate substantially higher than competing ACV products. The three-capsule serving size results in a large daily dose that appears to cause problems for a meaningful minority of users. At £9.98, it is among the priciest in the range while delivering one of the weakest effectiveness scores (63/100).

The Turmeric 2000mg (67/100) drew a quality control complaint that is hard to dismiss: one buyer counted their tablets and found only 92 to 98 instead of the advertised 120. For a brand that does not publish batch testing results, this kind of report — even if isolated — undermines the trust that budget pricing requires.

Context matters. Nutrition Geeks' 69.4/100 average sits below Vegavero (74.8/100), NOW Foods (79.2/100), and California Gold Nutrition (82.2/100) — all brands previously profiled by AIScored. But none of those brands price their entire range under £10. The comparison is not entirely fair, and it is not entirely unfair either.

The more instructive comparison is with other Amazon marketplace brands in similar price brackets. Against generic white-label supplements — the kind that populate Amazon search results with near-identical listings and no brand identity — Nutrition Geeks performs meaningfully better. Their product descriptions are detailed and largely accurate. Their formulations show evidence of thought: dual-form B12, 15:1 lion's mane extract, algae-derived vegan D3. These are not the cheapest possible ingredients thrown into a capsule.

The issue is that "better than white-label" is a low bar. The UK supplement market's mid-tier — brands like Nutravita, New Leaf, and WeightWorld — typically scores in the 65–75 range while carrying at least some form of quality verification. Nutrition Geeks matches their scores but not their transparency. The brand is doing the formulation work but skipping the verification step that would prove it.