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Condition guideCancer & palliative

Appetite stimulation & cachexia

Divergent evidence: limited but positive in HIV/AIDS wasting; insufficient in cancer cachexia, where the best trial showed no benefit.

Limited evidence

Last reviewed 15 June 2026 · Education, not medical advice

Low-quality or sparse trials; benefit is uncertain and may be outweighed by harms.

Can medicinal cannabis help with appetite & cachexia in NZ?

Limited evidence for appetite & cachexia. Divergent evidence: limited but positive in HIV/AIDS wasting; insufficient in cancer cachexia, where the best trial showed no benefit.There is no fixed list of qualifying conditions in NZ — whether it's appropriate for you is a clinical judgement for a registered doctor. This is education, not a treatment recommendation.

What the evidence says

The evidence splits by condition. In HIV/AIDS wasting (pre-modern-ART era), dronabinol improved appetite (38% vs 8% placebo) but weight gain was not statistically significant. In cancer cachexia the evidence is insufficient — the best RCT (Strasser 2006) showed no benefit over placebo. It should not be presented as a proven appetite treatment for cancer.

Cannabinoids studied

  • THC

Key cautions

  • Cancer cachexia: the best RCT was negative — set realistic expectations.
  • THC sedation, dizziness, dysphoria and anxiety, especially in frail or advanced-illness patients.
  • Subjective appetite is not the same as clinically meaningful weight gain.

Sources

Peer-reviewed reviews, trial data and official guidance. We never fabricate figures.

What to do next

If you think medicinal cannabis might help with appetite & cachexia, the next step is a conversation with a registered New Zealand doctor, who can weigh your individual situation. Start with your own GP or a clinic that focuses on cannabis medicine. Our step-by-step pathway walks through the whole process, and our self-check can help you prepare.

This is general information, not medical advice. Only a registered New Zealand doctor can decide whether medicinal cannabis is right for you.

Reviewed for accuracy by the mc.nz editorial team against the cited sources. Last reviewed 15 June 2026.