Australia's vitamin brands increased advertising activity over the past year as the supplements category attracted broad consumer participation. New Nielsen Ad Intel data shows advertising expenditure in the vitamins and supplements sector reached $75.1 million during the 12 months from June 1, 2025, to May 31, 2026. That represents a 26.5% increase compared with the previous year, reflecting stronger competition among brands seeking greater visibility in an expanding market.

Consumer adoption continues to support that investment. Nielsen Consumer & Media View data indicates that 11.8 million Australians, equal to 51% of the population, take vitamins, while 41% purchase them at least once every three months. The combination of sustained purchasing activity and widespread supplement use has positioned the category as a mainstream part of everyday health routines, encouraging brands to compete more actively for consumer attention.

The highest advertising investment during the reporting period came from Caruso's Natural Health, followed by Swisse Wellness, Blackmores, Pharm-A-Care Laboratories, and Sanofi-Aventis Consumer Health Care. Nielsen said the figures reflect a competitive environment in which established health and wellness companies continue investing to maintain visibility, attract consumers, and distinguish themselves within a category supported by regular purchasing behavior.

Nielsen executives said advertisers increasingly require detailed information about investment trends, competitive activity, and media presence across channels to guide marketing decisions. They also emphasized that understanding consumers extends beyond identifying health-focused audiences, requiring insights into purchasing frequency, shopping behavior, demographics, attitudes, and media habits to build more relevant marketing strategies.

Together, Nielsen Ad Intel and Consumer & Media View data show how advertising investment and consumer participation are advancing simultaneously within Australia's vitamins and supplements market. According to Nielsen, these combined insights provide brands with a clearer understanding of category direction, competitive activity, and consumer engagement as supplements become part of broader wellbeing routines.

📊 What This Means (Our Analysis)

The findings illustrate how sustained consumer participation can influence marketing investment across an established category. With vitamin use extending across a large share of Australia's population, brands are increasingly relying on advertising and consumer intelligence to strengthen their competitive position rather than simply expanding awareness.

The report also highlights the value of combining advertising measurement with consumer behavior insights. Viewing investment patterns alongside purchasing habits and audience characteristics enables marketers to make more informed planning decisions while responding to competition in a category supported by regular consumer demand.

📌 Our Take: As supplement use continues to attract widespread participation, competitive advantage will increasingly depend on how effectively brands connect advertising strategy with consumer insights.