Concerns over bodybuilders injecting natural oils

December 01, 2016

In BMJ Case Reports today, doctors are warning of the dangers associated with injecting natural oils to improve muscle definition following a serious complication experienced by an amateur bodybuilder.

The 25 year-old-man was referred to hospital because of pain and loss of function in his right arm over several months. An ultrasound scan showed a rupture in his triceps -- a rare condition in young patients -- and multiple cysts within the arm muscles.

He had taken up bodybuilding 4 years prior and attended the gym three times each week. He admitted to injecting coconut oil and other concerning practices to improve his muscular appearance.

He was using non-prescribed and self-administered insulin, vitamin B12 injections, steroids, and protein supplements. These practices resulted in numerous adverse reactions, including seizures, infections, and a range of conditions, some of which required surgery.

Surgery to repair the rupture in his arm was successful. However, he continues to practice unsafe techniques to achieve his desired body image, despite being advised about the potential future risks.

Steroid use among bodybuilders to bulk up muscles is well known. Other compounds may be used, including natural oils, such as sesame oil, walnut oil and paraffin. These are often less costly than other synthetic compounds and are an attractive option, particularly to amateur bodybuilders.

Use of natural oils for this purpose is well known among Arab and Middle Eastern communities and on internet sites, but there's not much information about the practice in medical literature.

"The few cases of natural oil self-inoculation formally reported are likely to be the tip of the iceberg," explain the doctors. "We need to be aware of these cases to enable correct clinical diagnoses and also to recognise other self-abusive and potentially life-threatening practices which may be seen in conjunction."
Note to Editors

Case Report: Muscle mania: the quest for the perfect body

Embargoed link:

Public link once embargo lifts:

Author contact:

Dr Ajay Sahu, London North West Healthcare NHS Trust, Ealing, Hospital, London, UK
Tel: 44-0-786-872-4910


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