Choline in the UK: Alpha-GPC vs Citicoline & How to Choose a Supplement

Jul 21, 2026

9 min read

0 Comments

If you've researched choline you'll have run into a wall of jargon — Alpha-GPC, Citicoline, CDP-Choline, bitartrate. This guide untangles it: what choline is, how the popular forms differ, which claims are actually allowed, and how to choose a quality product in the UK.

Let's be clear on claims. Choline is a nutrient with authorised GB/EU health claims when a serving provides enough of it (at least 82.5 mg of choline). So we can tell you what choline contributes to — but only the claims that are actually on the register (which, notably, are about lipids, liver and homocysteine, not "brain" or "focus"). We'll stick to what's allowed.

What is choline?

Choline is an essential nutrient — grouped with the B vitamins — that the body needs but can't make in sufficient amounts, so it has to come from diet or supplements. What varies between products is the form: the compound the choline is delivered as, and how much actual ("elemental") choline that provides.

Alpha-GPC vs Citicoline vs Bitartrate

Choline Bitartrate

Choline bound to tartaric acid — an economical, well-established source of elemental choline.

Alpha-GPC

A choline compound (alpha-glycerophosphocholine) popular in nootropic and sports formulas; ~40% choline by weight.

Citicoline (CDP-Choline)

A choline compound that also supplies cytidine; another widely used premium source.

Rather than pick one, our formula combines all three sources — and the number that matters is the total elemental choline they add up to.

What's in our formula — and the authorised claims

600mg

Choline Bitartrate

300mg

Alpha-GPC

100mg

Citicoline

320mg

total elemental choline

Because each serving provides 320 mg of elemental choline — well above the 82.5 mg threshold — these authorised claims apply:

Choline contributes to normal lipid metabolism.
Choline contributes to the maintenance of normal liver function.
Choline contributes to normal homocysteine metabolism.

How people take choline

General information only — follow your product's label. Choline is typically taken daily with food; ours is a two-capsule serving. Some people notice a fishy body odour at very high choline intakes — sticking to the label avoids that.

Safety & who should be cautious

Check first if relevant. If you're pregnant, breastfeeding, taking medication or managing a health condition, speak to your GP or pharmacist before supplementing choline.

How to choose a quality choline supplement

Look for elemental choline. The meaningful figure is the total elemental choline per serving — not the weight of the compounds.
Know the sources. Alpha-GPC and Citicoline are premium forms; bitartrate is economical. A blend gives you a mix.
Third-party testing with a Certificate of Analysis available.
Clean label, full disclosure, GMP manufacture, reputable UK seller.

Humming Herbs Choline

A 4-in-1 combining Choline Bitartrate, Alpha-GPC and Citicoline to provide 320 mg elemental choline per serving. Choline contributes to normal lipid metabolism and to the maintenance of normal liver function. Third-party tested; full Supplement Facts on the product page.

References & further reading

Great Britain Nutrition and Health Claims (NHC) Register — the authorised choline claims.
PubMed — research on choline, Alpha-GPC and Citicoline (background reading; not a substantiation of any health claim).

Important: This article is for general information only and is not medical advice. Food supplements are not a substitute for a varied, balanced diet and a healthy lifestyle, and are not intended to diagnose, treat, cure or prevent any disease. If you are pregnant, breastfeeding, taking medication or managing a health condition, speak to your GP or pharmacist before taking any new supplement. Keep out of reach of children.