A church spokesman said all of its businesses in New Zealand had shown "good growth".
"Over the past year our market shares in the various categories in which we operate have either been stable or in slight growth," he said. "Our health services business Vitality Works continues to grow strongly and is now a leading New Zealand provider of corporate health services with globally leading-edge workplace wellness programmes."
Total expenses rose to $214 million from $201.8 million in the previous year and included $197.3 million that went towards nutrition, wellbeing and health food activities, according to the accounts. Appropriations of $7.1 million to church entities were also disclosed.
The net surplus for the year rose to $9.5 million from $3 million a year earlier.
Sanitarium has a controversial exemption from paying tax on its business income as a result of its ownership by the church, a registered charity.
The "advancement of religion" is considered a charitable purpose under the Charities Act, which some critics argue is no longer relevant in a secular democracy.
Sanitarium has defended the exemption by saying it operates exclusively for charitable purposes and tax exemptions are available to all businesses that limit themselves to such activities.
According to property records, the 3ha former Sanitarium property in Papanui now belongs to the Smith family, which operates a number of Mitre 10 hardware stores in Christchurch.
A Mitre 10 Mega outlet is expected to open on the former Sanitarium site in late June.
The company's Papanui factory made Weet-Bix and Marmite, but was badly damaged in the February 22, 2011 Christchurch earthquake, sparking the shortage of the breakfast spread dubbed "Marmageddon".
Weet-Bix production shifted to Auckland in 2012, reportedly at the cost of 36 jobs, and in early 2014 Sanitarium announced it was selling the property.