Fats and oils
Plant sterols
Also called: phytosterols, stanols, beta-sitosterol
Plant compounds that block cholesterol absorption.
- Why people take it
- High LDL cholesterol, prostate.
- What the evidence says
- Good evidence for lowering LDL by about 6–12% with 2 g a day.
- How it is usually taken
- Usually 2 g a day with meals, in spreads, drinks or capsules.
- Be careful
- Not for people with sitosterolaemia. Can lower some vitamins.
- Medicines it can interact with
- Can lower carotenoid levels; work alongside statins.
Other fats and oils
Common questions
What is Plant sterols?
Plant compounds that block cholesterol absorption.
Why do people take Plant sterols?
High LDL cholesterol, prostate.
Does Plant sterols work?
Good evidence for lowering LDL by about 6–12% with 2 g a day.
How much Plant sterols do people take?
Usually 2 g a day with meals, in spreads, drinks or capsules.
Is Plant sterols safe?
Not for people with sitosterolaemia. Can lower some vitamins.
Does Plant sterols interact with medicines?
Can lower carotenoid levels; work alongside statins.
Sources and further reading
Last reviewed 31 October 2026. Written by Satya Babu.
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