Lifestyle Guidelines Based on the Traffic Light Approach

Most chronic diseases develop gradually through thousands of everyday choices—what we eat, how much we move, how well we sleep, how we manage stress, and whether we avoid harmful habits. While the science is clear on what promotes health, the challenge lies in translating that knowledge into sustained behavior change.

One in three Americans suffers from a chronic disease, which consumes 90% of US health care budget. Non-Communicable Diseases are a rising tide globally [@WHO2023NCD]. There is sufficient evidence and practical knowledge available to prevent and manage many of these conditions. Yet, the gap between what we know and what we do remains stubbornly wide.

Why This Guideline?

A new Health Building Guideline (abbreviated here as Lifestyle Guideline based on Traffic Light Approach, or LG-TLA) fills this gap cite:Sarwal2026. Based firmly on scientific evidence, the Traffic Light Approach transforms complex health recommendations into simple, memorable, and actionable guidance.

The framework rests on three core principles:

• 🟢 Green – practice regularly • 🟡 Yellow – improve gradually • 🔴 Red – avoid or minimize

Health is not shaped by a single meal, a short-term diet, or a temporary lifestyle change — it is built through the choices we make every day. The 21-point LG-TLA based on the Traffic Light Approach provides a practical, evidence-based framework that meets people where they are, rather than where we wish them to be.

LG-TLA provides individuals with a practical way to evaluate their lifestyle score at any time. This structured approach helps individuals identify opportunities for improvement, set realistic goals, and track progress over time.

Understanding the Traffic Light Approach

🟢 Green Choices – Build Health

🟢 Green Light Foods: nutrient-supportive foods, balanced diets The Healthy Building Lifestyle Guidelines encourage eating a balanced diet that includes foods from all seven major food groups, with an emphasis on fresh, seasonal, and locally produced foods when available. These foods form the foundation of a healthy diet.

The recommended Green Light food groups include:

• Vegetables: Choose a variety of seasonal vegetables, especially green leafy vegetables, along with fresh salads such as beetroot, cucumber, and radish. Traditional chutneys made with coriander, mint, and lemon provide additional nutrition and flavor.
• Fruits: Enjoy a variety of seasonal fruits to increase intake of vitamins, minerals, fiber, and antioxidants.
• Whole Grains and Cereals: Prioritize whole grains such as whole wheat, parboiled rice, and traditional millets like bajra (pearl millet), jowar (sorghum), and ragi (finger millet). Fermented grains increase bioavailability of nutrients.
• Pulses and Legumes: Include whole pulses, beans, sprouted lentils, and chickpeas (gram), which are excellent sources of plant-based protein, fiber, and essential nutrients.
• Dairy: Choose lower-fat dairy options such as toned milk, plain yogurt (curd), and buttermilk to provide calcium, protein, and beneficial probiotics.
• Healthy Fats: Prepare foods using small amounts of oil and favor healthier cooking methods such as steaming or boiling. The guidelines also recommend adding a small amount of ghee to prepared foods for flavor and satiety.
• Natural Sweeteners: When sweetness is desired, choose natural options such as jaggery, honey, dates, or raisins in moderation, while keeping overall added sugar intake low.

🔴 Red Choices – Avoid or Minimize

🔴 Red Light Foods: Foods to Avoid for Better Health cite:ICMR2024

One of the core principles of LG-TLA is reducing foods that contribute to chronic inflammation, excess calorie intake, and poor metabolic health. These “Red Light” foods are best avoided because they promote weight gain and increase risk of chronic disease.

Examples of Red Light foods include:

• Deep-fried foods: French fries, pakoras, samosas, kachoris, and other fried snacks are high in fat and calories cite:Qin2021FriedHeart.
• Processed and packaged foods: Potato chips, patties, packaged breads, biscuits, and many commercially prepared sauces cite:Dai2024.
• Sugary treats and confectionery: Candy, chocolates, toffees, cakes, pastries, ice cream, and other desserts high in added sugar cite:LaraCastor2025SSB.
• Sugar-sweetened beverages: Soft drinks, sodas, and other carbonated beverages cite:Reynolds2019Fiber.
• Milk-based caffeinated beverages: Avoid tea and coffee prepared with milk and added sugar.
• Red meat: Frequent consumption of processed meats and large amounts of red meat should be limited.
• Alcoholic beverages: Alcohol provides little nutritional value and is associated with numerous adverse health outcomes.
• 🔴 Red lifestyle habits: Points to addictive substances that need to be shunned.

🟡 Yellow Choices – Improve Gradually

🟡 Yellow Light Choices: Small Changes That Lead to Lasting Habits

Good nutrition is only one part of a healthy lifestyle. The Healthy Building Lifestyle Guidelines also emphasize daily habits that support whole-person health.

The Yellow Light represents the transition zone — choices that should be gradually improved as part of a healthier lifestyle. Rather than striving for perfection, the goal is to make steady, sustainable progress.

Examples of Yellow Light choices include:

• Move: Physical activity: If 30 minutes of daily exercise cite:WHO2024Physical feels overwhelming, begin with shorter sessions and gradually increase duration and intensity over time.
• Sleep: Prioritize quality sleep cite:Wang2022Sleep.
• Stress: Managing stress is essential for both physical and mental health.
• Getting daily sun exposure: Safe exposure to sunlight helps support the body’s natural production of vitamin D, which plays an important role in bone health, immune function, and overall well-being.
• Maintain a healthy body weight: Strive for a Body Mass Index (BMI) below 25 and reduce excess abdominal fat, which is associated with increased risk of diabetes, heart disease, and other chronic conditions.
• Staying well hydrated: Drink enough water throughout the day to support digestion, circulation, temperature regulation, and overall body function.
• Meal time and portions: Avoid overeating by practicing mindful eating and recognizing hunger and fullness cues. Establish consistent mealtimes.
• Screen time: Reducing excessive screen use does not have to happen overnight. Setting realistic limits and replacing screen time with physical activity or relaxation can support healthier daily habits.

Discussion

This simple framework helps people assess their current habits, set achievable goals, and track progress over time. It has many strengths. Firstly, it combines diet and lifestyle choices and places them within a unified, easy-to-remember structure. Secondly, it acknowledges that perfection is not the goal — gradual improvement is.

In our clinical experience, patients adopting this guideline and achieving higher lifestyle scores report better digestive function, greater energy during the day, improved sleep, and relief from various distressing symptoms.

From Knowledge to Action

Building a Healthier Lifestyle One Choice at a Time. Healthy eating is not about perfection—it is about making better choices consistently. The Healthy Building Lifestyle Guidelines provide a framework for sustainable health creation.

What distinguishes these guidelines is their emphasis on behavior change rather than information alone. By bridging the gap between knowledge and action, the Traffic Light Approach provides a practical, actionable guide.

Learn More:

Start small, stay consistent, and track your progress. Make one better choice today than yesterday. Share your experience to inspire others. Readers may assess their lifestyle at https://lifequality.org.in/score.html.

About the Author:

Dr. Rakesh Sarwal is a physician, public health researcher, and certified therapeutic yoga consultant. He leads Equal Society, a nonprofit organization focused on lifestyle medicine and chronic disease prevention.

“This public guide is based on our published Health Building Lifestyle Guideline and adapts it for general readers.”

Lifestyle interventions are important in prevention of noncommunicable diseases [1]

References

1.

World Health Organization. Noncommunicable diseases: Key Facts. WHO Fact Sheet [Internet]. 2023. Available from: https://www.who.int/news-room/fact-sheets/detail/noncommunicable-diseases