Choline

What choline is and why intake varies so much

Choline is a nutrient your body makes only in small amounts, so most of it has to come from your diet. Eggs, liver, fish, soya, chickpeas and wheat germ are the richest sources. Your body uses choline to build phosphatidylcholine, a fat that forms part of every cell membrane, and acetylcholine, a messenger between nerve cells. EFSA, the European food safety authority, has approved three claims: choline contributes to normal lipid metabolism, to normal homocysteine metabolism and to the maintenance of normal liver function. Anything beyond those three is marketing, not evidence.

Intake differs widely between people. Eat eggs most days and you are probably close to the reference intake of 400 mg. Eat mainly plant-based, or skip eggs and fish, and you may sit well below it. That gap is the usual reason people start looking at choline among our dietary supplements.

The forms are not interchangeable

Two products can both say "choline" and still behave differently, because they differ in how much choline they actually deliver per capsule and in how the body handles them.

• Choline bitartrate: a simple salt, roughly 41% choline by weight. The plain, affordable way to top up daily intake.
• Phosphatidylcholine, usually from sunflower or soya lecithin in powder and granules: less choline per gram, but easy on the stomach and simple to stir into food.
• Citicoline (CDP-choline): choline joined to cytidine, most used in cognition research, typically 250 to 500 mg per day.
• Alpha-GPC: a phospholipid form, common in pre-workout and focus formulas, usually 300 to 600 mg per day.

How we choose the choline we stock

We look at three things before a choline product goes live: the form, the amount of choline it really delivers, and whether the combination makes sense. A citicoline capsule at 250 mg is a considered dose. Fifty milligrams of choline bitartrate tucked into a long ingredient list is filler, so we leave those products out. We buy directly from the brands, without intermediaries, so you know what you receive is authentic. Every product passes our compliance team, we test products ourselves, and independent labs spot-check batches. You can read how we select brands and products.

Who choline suits, and what to expect

Choline is worth considering if you rarely eat eggs, liver or fish, if you eat vegan, or if you are pregnant or breastfeeding and want to cover a higher requirement. Citicoline and alpha-GPC are mostly bought by people who train hard or who are browsing our pages on memory and concentration. Be honest with yourself there: no claim for cognition is approved in Europe and the studies are mixed, so keep expectations modest and judge the product on the choline it delivers.

Practical points matter more than the label design. Take choline with a meal, split larger amounts over the day, and give it two to three weeks of consistent use before you decide. Very high single doses can cause a fishy body odour or a loose stomach. That is a reason to lower or split the dose, not a reason to avoid choline altogether. If you use prescribed medication, check with your doctor or pharmacist first.