by
mohit bohra
| Apr 02, 2025
Updated on - 30 Jan 2026
Malnutrition doesn’t only affect people in extreme poverty. It can show up quietly in everyday life, especially when long work hours, limited food choices, health issues or rising living costs make it harder to eat well. When your body doesn’t get the nutrients it needs, everything from your energy levels to immunity and long-term health can suffer. Understanding the real causes of malnutrition helps you recognise risks early and make better choices for yourself and your family.
Let’s look at these causes in detail.
What are the causes of malnutrition?
The reasons for the occurrence of malnutrition and its various types are poor dietary choices, societal issues and underlying medical disorders:
1. Lack of a balanced diet
A balanced diet has an adequate amount of nutrients, such as proteins, vitamins and minerals. This is especially critical for infants, children, pregnant women and new mothers for proper growth, development and healing.
In most cases of malnutrition and undernutrition, affected individuals do not consume the right food for their age and to meet their body’s requirements.
2. Poor dietary choices
Another cause of malnutrition is poor, ill-informed dietary choices. Eating high-calorie, junk and processed food can lead to overnutrition.
3. Lack of nutritional knowledge
In many cases of malnutrition, individuals cannot consume the right nutrients and balanced diets because they lack education on proper nutrition. With the right training and information, they can overcome this knowledge gap and make better dietary choices.
4. Food scarcity and economic issues
In underdeveloped or developing countries, limited access to healthy or adequate food drives families to rely on nutrient-poor food sources. Poverty also reduces access to affordable food for many.
5. Medical disorders
Conditions like nausea or swallowing troubles can hinder a person’s ability to consume food. Anorexia or bulimia are certain eating disorders that can also result in malnutrition.
Additionally, digestive disorders like Inflammatory Bowel Disease (IBD) can result in malabsorption of nutrients.
Common risk factors leading to malnutrition
Common risk factors leading to malnutrition include fast lifestyle changes, where long gaps between meals, reliance on packaged snacks and busy schedules reduce the overall nutritional quality of daily food intake.
Lack of nutrition awareness is another factor, as people may eat regularly but still miss the right portions or variety of nutrients needed for their age and health.
High nutritional needs also increase the risk; young children, teenagers, pregnant women and older adults require more protein, vitamins and minerals, and when their diet doesn’t meet these increased demands, malnutrition can develop even if they are eating every day.
Dietary deficiencies and poor nutrition intake
Dietary deficiencies and poor nutrition intake are major causes of malnutrition, often arising when daily meals lack essential nutrients. Not getting enough protein affects muscle strength, immunity and recovery from illness.
Gaps in micronutrients like vitamin D, zinc, iron, vitamin A, folate and B12 can gradually impact energy, vision, brain development and bone health. Imbalanced meal patterns, such as skipping meals, eating too many sugary or refined foods and relying on processed snacks, further reduce nutrient intake and can lead to long-term deficiencies.
Socioeconomic factors contributing to malnutrition
Socioeconomic factors contributing to malnutrition often stem from limited financial and social resources that affect access to nutritious food and basic healthcare. Financial limitations can push individuals or families to rely on cheaper, low-nutrient foods instead of balanced meals with fruits, vegetables, dairy and proteins.
Food availability challenges, such as seasonal shortages, weak supply chains or poor farming conditions, reduce access to fresh produce.
Sanitation and environmental issues like contaminated food, unsafe water and poor hygiene can also cause repeated infections that hinder nutrient absorption, making malnutrition more likely, especially in rural areas.
Health conditions that cause malnutrition
Health conditions that cause malnutrition often affect how the body digests, absorbs or uses nutrients, leading to deficiencies even when food intake seems adequate. Endocrine and metabolic conditions like thyroid disorders and uncontrolled diabetes can alter nutrient processing or increase the body’s nutrient needs.
Chronic organ diseases such as kidney, liver or lung conditions can reduce appetite while increasing physical demands, resulting in gradual nutrient loss. Cancer and its treatments can also raise metabolic needs and cause issues like nausea, mouth sores or digestive discomfort, which limit food intake and contribute to malnutrition over time.
Impact of malnutrition on overall health
The impact of malnutrition on overall health can be serious, as it weakens many essential functions of the body. Poor immunity makes infections more frequent and slows recovery. In children, long-term deficiencies can delay growth, affect cognitive development and reduce learning capacity.
Low protein and calorie intake also reduce muscle strength, leading to fatigue, poor stamina and difficulty performing daily activities. During illness, the body becomes less capable of responding to treatment or healing after surgery, which can prolong recovery and worsen existing conditions.
Prevention and management of malnutrition
Preventing and managing malnutrition starts with regular monitoring, timely medical support and mindful eating habits. A balanced diet that includes whole grains, nuts, dairy, lean proteins, legumes, vegetables and fruits helps maintain steady nutrient intake and reduces micronutrient gaps.
Routine health check-ups and blood tests make it easier to spot deficiencies early and take corrective action. Individualised dietary counselling also plays an important role, as nutrition experts can tailor plans to a person’s age, health needs and lifestyle.
Clean water, good hygiene and safe food practices help prevent infections that interfere with nutrient absorption. When needed, supplementation with nutrients like folate, vitamin D, zinc, iron, calcium or B12 can help correct confirmed deficiencies and support recovery.
Role of health insurance in managing malnutrition-related treatment costs
Medical insurance policy helps reduce the medical expenses linked to diagnosing and treating malnutrition. Most policies cover hospitalisation, specialist consultations and tests for underlying conditions that lead to nutrient deficiencies.
Depending on the plan, coverage may also include outpatient visits, nutritionist guidance or support for illnesses that indirectly affect nutrition. Understanding the policy terms makes it easier to choose a plan that fits your needs and to confirm what is included or excluded before starting treatment.
Conclusion
Malnutrition is often a sign that your body or lifestyle needs attention, not just a lack of food. Small steps like balanced meals, timely check-ups and early intervention can prevent long-term health issues. Still, unexpected medical expenses can arise and having a medical or critical illness insurance plan can ease the financial stress. For guidance on choosing the right health insurance, fill out the form on this page to get personalised support.
FAQs
1. Can malnutrition develop even when a person has a normal BMI?
Yes, BMI only reflects weight, not nutrient status. Someone can maintain a normal weight yet still have hidden deficiencies due to poor absorption or low micronutrient intake.
2. Can weather conditions affect malnutrition rates?
Yes, extreme weather can disrupt crop cycles, affect soil quality and reduce food diversity, which directly impacts nutritional intake in vulnerable regions.
3. Is it possible for someone with a good appetite to still be malnourished?
Yes, eating frequently does not guarantee nutrient balance. Diets high in calories but low in protein, fibre or micronutrients can still lead to malnutrition.
4. Does long-term medication increase the risk of malnutrition?
Yes, some medications alter digestion, reduce stomach acid, change taste or increase nutrient loss. Without monitoring, these effects can gradually cause deficiencies.
Disclaimer: The information provided in this blog is for educational and informational purposes only. It is not intended as a substitute for professional advice, diagnosis or treatment. Please consult a certified medical and/or nutrition professional for any questions. Relying on any information provided in this blog is solely at your own risk, and ICICI Lombard is not responsible for any effects or consequences resulting from the use of the information shared.