Despite widespread recognition of the usefulness of a biopsychosocial approach in social work, there are limited studies exploring how social workers can use this approach to support the health and wellbeing of carers of young people with first episode psychosis (FEP). Validated questionnaires and anthropometric measures were used to assess the physical health and wellbeing of 42 carers of young people with FEP. Carers had moderate levels of negative caregiving consequences, quality of life, and health status. More than half (52.4%) of carers were experiencing social isolation. Many carers were overweight (78.6%), had a high risk for type 2 diabetes (39.0%), and had hypertension (33.3%). Practical implications of a biopsychosocial approach to social work that supports both clients and their carers are discussed. Social workers can better utilise the biopsychosocial approach in working with young people with first episode psychosis and their carers. Holistic care using a biopsychosocial approach should support individuals and their families in both physical and mental health. Social workers can further support the health and wellbeing of carers by collaborating with medical and other allied health colleagues within multidisciplinary teams, and by referring carers with physical health problems to general practitioners.