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Botanical illustration of Sutherlandia
MedicinalSourced entry

Sutherlandia

Lessertia frutescens

"Cancer bush", one of South Africa's most popular medicinal plants. A critical review found its cancer research unconvincing and doesn't recommend it for cancer.

Safety at a glance

  • PregnancyNothing recorded
  • BreastfeedingNothing recorded
  • Medicines1 note →
  • Who should avoid itNothing recorded
  • AllergiesNothing recorded
  • ToxicityNothing recorded

Tap a box to read the safety notes below. “Nothing recorded” means our sources don't cover it, not that it's safe.

Sutherlandia may interact with some medicines. If you take any medicine, read Interactions with medicines below and talk to your doctor or pharmacist before using it.

What is Sutherlandia?

Plant family
Fabaceae, the pea and bean family
Parts used
The leaves and shoots
Where it grows
The drier regions of southern Africa
Genus
Lessertia
Species
frutescens

Also called

Cancer Bush

Older scientific names

Sutherlandia frutescens

Traditionally used for

  • Cancer (traditional)
  • General health

Traditionally described as

  • Affects the immune system (in lab studies)

Traditions that use it

Safety

Interactions with medicines

  • The reviewers say Sutherlandia shouldn't currently be recommended for cancer, partly because of possible interactions with other medicines.[1]Study

What does the research say?

Traditional use

These are traditional uses, not proven treatments.

  • Sutherlandia, or cancer bush, is one of South Africa's most widely used medicinal plants. It's used by Indigenous communities and, as its name suggests, to prevent and treat cancer.[2]Study

Laboratory & animal research

Lab and animal results show what might be worth studying in people. They don't show that the herb has these effects in humans.

  • In lab and animal studies, it has shown effects on cancer cells, the immune system, inflammation, blood sugar, stress and microbes.[2]Study

  • A 2025 critical review found that many cancer studies of Sutherlandia used far too-high doses or lacked proper controls, making them look overly hopeful. It concluded that the plant doesn't show acceptable anticancer activity, and there are no rigorous animal studies or clinical trials.[1]Study

In short

Not recommended for cancer; possible interactions with other medicines.

Sources

  1. [1] The "Cancer Bush" Sutherlandia (syn. Lessertia) frutescens. An Example of Promotional Research, or Is There Scientific Merit? · DOI: 10.1055/a-2654-6280Peer-reviewed study
  2. [2] Phytochemistry, Ethnopharmacology, and Pharmacology of Lessertia frutescens (Cancer Bush): A Comprehensive Review · DOI: 10.3390/plants14142086Peer-reviewed study

This information is educational and traditional in nature, and is not a substitute for professional medical advice. Unfamiliar word? See what these words mean.