A strong immune system does not develop overnight. Building immunity is a gradual process that requires consistency, healthy lifestyle choices and long-term care. The body’s immune system works as a natural defence network of cells, tissues and organs that identifies and fights harmful invaders such as bacteria, viruses and toxins.
According to health experts, immunity can broadly be divided into two types — innate immunity and adaptive immunity.
Innate immunity is the body’s first line of defence that a person is born with. It includes physical barriers such as the skin, mucus lining of the respiratory tract and stomach acids that help prevent harmful substances from entering the body.
Adaptive immunity develops throughout life. When the body encounters a specific infection or receives a vaccine, it produces antibodies designed to fight that particular threat. It also creates immune memory, allowing the body to respond faster during future exposures.
Celebrity nutritionist and fitness coach Nikita Garg shares four simple tips that can help support immunity when followed consistently.
1. Protect Your Gut Health
The digestive system plays a major role in immune function. A large portion of the immune system is linked to the gut, where specialised immune tissues help identify harmful substances and support the body’s defence mechanisms.
A healthy gut microbiome helps train immune cells to differentiate between beneficial organisms and harmful pathogens. Maintaining a strong intestinal barrier can also prevent unwanted microorganisms from entering the bloodstream.
Including probiotic-rich foods such as curd, kanji, pickles and buttermilk may help support gut health. A balanced diet with easily digestible foods is also important for maintaining digestive wellness.
2. Maintain a Steady Supply of Antioxidants
Antioxidants help protect cells from oxidative stress and support overall immune function. The body produces important antioxidants such as glutathione, which depends on adequate nutrition and quality protein intake.
A protein-rich balanced diet, along with natural sources of antioxidants such as amla, can contribute to better immune support. Supplements like vitamin C, CoQ10 and essential minerals should be considered only after consulting a healthcare professional.
3. Prioritise Quality Sleep and Stress Management
Sleep plays a crucial role in immune regulation. During rest, the body carries out repair processes and supports the activity of immune cells.
Chronic stress can affect immune responses, making relaxation practices, regular exercise, meditation and maintaining a healthy routine important parts of overall wellness.
4. Stay Active and Follow a Consistent Lifestyle
Regular physical activity supports circulation, helps immune cells move efficiently through the body and contributes to overall health. Simple habits such as walking, strength training or yoga can make a difference when practised regularly.
Building immunity is not about quick fixes but about maintaining consistent habits involving nutrition, movement, sleep and stress management. Small daily choices can collectively strengthen the body’s natural defence system over time.