Factors that influence immune health

Image of a woman eating a healthy meal

The immune system requires adequate macronutrients (protein, carbohydrate, and fat) and micronutrients (vitamins and minerals) to function properly. Micronutrients including iron, vitamin A, vitamin B12, vitamin C, vitamin D, zinc and vitamin B6 contribute to the normal function of the immune system.

A poor diet is associated with inadequate micronutrient intake. Worldwide, an estimated two billion people have low levels of key vitamins and minerals that are involved in the normal function of the immune system.1,2

Sub-optimal intakes of some nutrients pose a greater challenge to the immune system at certain ages and stages of life, including during later years when the intakes of some nutrients can decrease.

Selection of healthy foods including nuts, grains, vegetables and fruit

People who follow a significantly restricted diet, e.g., vegan diet, may find it more challenging to meet the recommended intakes for vitamins and minerals e.g. iron and vitamin B12, which help support the normal function of the immune system*.3

Chronic low-calorie dieters are at risk of missing out on nutrients which support a healthy immune system. In addition, research from the USA showed that older adults with obesity have higher risks of some micronutrient inadequacies.4

*Iron and vitamin B12 contribute to the normal function of the immune system

Happy older adults

Immune health as you age

Immunosenescence is age-related decline in immune function. It occurs at a time of life in when patients may also experience decreased nutrient absorption and metabolism, drug-nutrient interactions, and changes in smell and taste5 that may negatively affect their nutrient status, including a decline in the ability to absorb vitamin B12 from food and difficulty consuming adequate selenium, zinc, iodine, iron and copper.6,7

Understanding Immune Health

Learning lab icon

Learning lab

Discover educational resources and more in the learning lab.

Find out more

Register now icon

Register now

For news, updates, and more, click the link below to sign up and be on our mailing list.

Register now

Document icon

Overview of Immune Health

Find out more about the role of nutrition in a healthy immune system.

Find out more

The Centrum Range

Centrum Adults Multivitamin

Centrum Advance Multivitamin

A daily Multivitamin supplement that helps customers ensure they are getting the nutrients they need.*

Learn more

Centrum Adults 50+

Centrum Advance 50+

Helps support the nutritional needs of adults 50 years of age and older.*

Learn more

Centrum Women 50+

Centrum Women 50+

Designed for women 50 years and older.*

Learn more