The Truth About Processed Foods: How it Destroys Your Health
- April 19, 2025
- Dr. Kishor Adhikari
- 5:25 am

In today’s world instant noodles, sugar packed drinks, and other fast food has become more than just fuel, It has become a lifestyle. While modern eating habits may appear easy and social, they are silently reshaping our health, behavior, and even our identity.
As the old saying goes, “We are what we eat.” This statement is not just metaphorical rather a scientifically accurate statement. The quality of our diet directly affects not only our physical health but also emotional well-being, and social behavior. In this article, we explore how processed food is changing our lives in more ways than one, why society increasingly favors outside eating, and how we can shift toward better food choices before it’s too late to start over.
We Become What We Eat: What It Really Means
When we eat food, it is broken down into nutrients that are absorbed and then circulated throughout the whole body by the help of multiple systems. These nutrients form our cells, fuel our organs, and affect how we feel and function on daily basis. A poor-quality diet leads to poor-quality cells, weakened immunity, and long-term illness too.
Scientific Explanation:
· Every 35 days, your skin replaces itself.
· Your liver regenerates in about 6 months.
· Your body makes these cells from the food you eat.
If you’re constantly eating heavily processed food loaded with additives, trans fats, and sugars, those are the building blocks your body has to work with. Over time, this not only affects your weight, but your mood, focus, energy, and disease risk too.1
How Processed Food Is Changing Our Lives
1. Our Bodies Are Becoming Inflamed and Tired
Ultra-processed foods triggers chronic inflammation which is the root cause of many lifestyle diseases like heart disease, arthritis, and diabetes. A study from the National Institutes of Health (NIH) found that diets high in processed food result in higher levels of inflammatory markers in the blood.2
Calculate your Calorie intake level from this free calorie calculator:
2. The Gut-Brain Connection Is Getting Damaged
The gut is often called the “second brain.” A healthy gut supports strong mental health. However, processed foods lack fiber and nutrients needed for gut health. The NCBI reports that poor gut health has been linked to anxiety, depression, and even cognitive decline.3
3. Children Are Growing Up Addicted to Sugar
From sugary cereals to colorful and appealing snacks, children today are exposed to processed foods from a very young age. This builds a natural preference for sweet, salty, and fatty foods, which continues into adulthood till old age as well. WHO has repeatedly warned against childhood exposure to unhealthy food marketing and its long-term impacts.4
4. Our Hormones Are Getting Disrupted
Processed foods often contain endocrine-disrupting chemicals (EDCs) like BPA in packaging and artificial preservatives. According to research published by JAMA, these substances can interfere with hormone regulation and are linked to issues like early puberty, infertility, and thyroid dysfunction.5
5. Mental Health Is on a Decline
Depression, anxiety, and fatigue are increasing and also being linked to dietary habits nowadays. A study in JAMA Psychiatry found that people with diets high in ultra-processed foods had significantly higher rates of mood disorders than those consuming whole foods.6
Why People Tend to Eat Outside: The New Social Norm
1. Convenience Over Health
Modern life moves quickly. People are working longer hours and have less time for cooking. Fast food offers a quick and inexpensive alternative. However, the cost we save in time and money is often spent later in medical bills.
2. Social Influence and Peer Pressure
Eating out has become a cultural norm, especially among youth. Birthdays, celebrations, business meetings, and even casual catchups now focus on eating out. This normalizes unhealthy food choices and promotes bad food items too.
3. Marketing and Media Influence
The processed food industry spends millions or even billions annually on advertising. These ads are designed to make eating out look glamorous, convenient, and “cool” apparently. Children and teenagers are the most affected by these marketing tactics, according to the American Medical Association (AMA).7
4. Emotional Eating and Stress
Stress and emotional fatigue drive people toward comfort food—usually high in sugar, salt, and fat. Processed food provides a temporary dopamine spike, making it addictive. The World Health Organization (WHO) has emphasized how emotional states influence eating behavior and often lead to overeating processed food [8].

The Vicious Cycle: From Cravings to Chronic Illness

Here’s how the processed food cycle typically unfolds:
This cycle not only affects physical health but also damages self-esteem, leads to social withdrawal, and reduces work and also have been found to affect academic performance.
How to Reclaim Control Over Your Diet and Life
1. Practice Mindful Eating
Take time to chew slowly, eat without the screens, and observe your body’s hunger and act accordingly. This strongly reduces overeating and increases appreciation for real food as well.
2. Educate Yourself and Others
Awareness is the first step. Learn to read labels, understand ingredients, and recognize marketing traps. Teach children about healthy food in engaging, relatable ways.
3. Rebuild Family and Community Food Habits
Family meals, home cooking, and sharing food traditions can reduce the need to eat out. Community kitchens and local food movements can also restore healthy cultural practices over the ones we have today.
4. Make Eating Out the Exception, Not the Rule
Instead of making eating out a regular habit, you can try to treat it as an occasional experience. When you do eat out, choose places that offer fresh, and least processed food options.
5. Push for Better Food Policies
Support bans on junk food ads targeting children, clear labeling laws, and subsidies for fresh produce. Public policy is key to shifting long-term habits at the societal level.
What Experts Are Opine
World Health Organization (WHO): Calls for a global reduction in sugar and processed food intake to address rising non-communicable diseases.8
American Medical Association (AMA): Emphasizes food environment reform and consumer education.7
National Institutes of Health (NIH): Warns against long-term consumption of ultra-processed foods and their metabolic impacts.2
NCBI: Highlights the importance of gut health in both physical and mental well-being.3
JAMA Psychiatry: Links diet quality directly to the risk of depression and anxiety.6
Takeaway: Choose Food That Builds You, Not Breaks You
We truly become what we eat—our energy, health, behavior, and even mood is shaped by our daily food choices. While eating processed or outside food may seem normal today, it is not harmless. It is quietly changing our lives in profound ways—from hormonal changes and chronic fatigue to mental health and social habits.
The good news? you may ask. You don’t need to be perfect—you just need to be conscious about your own activities that may include, but not limited to:
· Eat more real food.
· Cook when you can.
· Choose wisely when you can’t.
· And most importantly, every bite is a vote for the kind of life you want to live.
For more on similar topic:
Sugar Addiction
References:
1.Harvard Health Publishing. (2020). We Are What We Eat: Food and Cell Regeneration.
2.Hall, K. D., et al. (2019). Ultra-Processed Diets Cause Excess Calorie Intake and Weight Gain. NIH.
3.NCBI. (2020). The Gut Microbiome and Mental Health: Role of Processed Diets.
4.WHO. (2016). Ending Childhood Obesity: Protecting Kids from Processed Food Marketing.
5.Trasande, L. (2018). EDCs in Processed Food Packaging and Hormonal Disorders. JAMA.
6.Zhang, Y., et al. (2022). Processed Food and Depression Risk. JAMA Psychiatry.
7.AMA. (2021). Policy Recommendations on Ultra-Processed Food and Marketing Influence.
8.WHO. (2021). Diet, Nutrition and the Prevention of Chronic Diseases.

Prof. Adhikari is a public health researcher and academician with over 17 years of experience in non-communicable diseases, health systems strengthening, and evidence-based interventions. Holds a PhD and MPH, with 50+ peer-reviewed publications and editorial roles in PubMed-indexed journals. His articles often focus on digital health tools, preventive care, mental health, and community-based strategies to improve global health outcomes through policy and practice.