Health · Fitness & Nutrition · 1 hr ago
Researchers warn that online advice to ‘boost’ immunity can mislead
Researchers who studied online content found that advice to boost immunity can be misleading.
They looked at Google search results and social media posts, including on Instagram.
Some posts contain scientific inaccuracies, while others promote products or services the researchers say are ineffective.
The immune system needs balance, not a boost: it fights germs but can also cause harm if it becomes overactive.
A weak immune response can raise the risk and severity of infections, while an overactive one can contribute to autoimmune diseases.
Healthy eating, exercise and enough sleep help maintain immune health, along with avoiding the harms of tobacco and alcohol.
The researchers warn that misleading claims could have negative health effects, especially when trust in evidence-based measures such as vaccines is weakened.
Researchers say online advice to “boost” the immune system can misrepresent how immunity works and promote ineffective products or services.
They argue the immune system needs to be maintained in balance, rather than boosted.
A poorly functioning immune system can increase the likelihood and severity of infections, while an overactive one can contribute to autoimmune diseases.
The researchers say reliable guidance generally focuses on healthy eating, exercise, adequate sleep, and avoiding tobacco and alcohol harms.
They warn that misleading claims may have negative health effects when trust in evidence-based interventions such as vaccines is weakened.
- Who
- Interdisciplinary public health researchers who study influences on public perceptions.
- What
- They warn that online “immune boosting” advice can be scientifically inaccurate and promote ineffective products or services.
- When
- The article was published on November 10, 2026. The researchers discuss a rise in immune-boosting discourse during the Covid pandemic.
- Where
- Google search results and social media platforms such as Instagram.
- Why
- The researchers say the idea of boosting immunity is misleading because immune health depends on balance, and such claims can create demand for products and services.
This story does not have two clearly opposing sides.
Public discussion of immunity intensified, drawing the researchers’ attention to rising talk of immune boosting.
The researchers examined the concept in Google search results and on social media platforms such as Instagram.
Folha published the article warning about online immune-boosting advice.
- Article publication
- November 10, 2026
- Platforms examined
- Google search results and Instagram
- Reliable guidance cited
- Healthy eating, exercise, adequate sleep, and avoiding tobacco and alcohol harms
- Examples of autoimmune diseases
- Rheumatoid arthritis and multiple sclerosis
What people are saying
The immune system needs to be maintained, not boosted.