Wesfarmers says its fast-growing health division is expected to clock up $6 billion in revenues this year as it expands its digital and pharmacy operations to meet the growing demand from Australians, who it says are sicker than they were before the pandemic.

The conglomerate on Tuesday will release the results of data from more than 3 million health checks taken on portable devices in its network of chemists which show an alarming increase in obesity, diabetes, high blood pressure, smoking and the risk of heart disease.