A balanced and nutritious diet is a basic necessity for good health. Yet many misconceptions about food and nutrition influence people’s daily choices. Such misunderstandings have significant consequences, particularly during adolescence, when the body is growing rapidly and developing physically and mentally. Nutritional deficiencies during these formative years can stunt growth, impair development, and even contribute to eating disorders.

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In adulthood, a balanced diet remains essential for maintaining strength, supporting normal bodily functions, and preventing nutritional deficiencies. Poor nutrition can lead to weakness, body aches, and serious health conditions such as diabetes, cardiomyopathy, and heart failure.

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It is therefore important to separate dietary facts from commonly held myths.

One of the most widespread misconceptions is that carbohydrates are inherently bad and should be eliminated from the diet. Carbohydrates are the body&039;s primary source of energy. They provide fuel for daily activities, support various bodily functions, and help ensure that proteins are used for tissue repair rather than being burned for energy. Teenagers require adequate amounts of complex carbohydrates such as whole grains, brown rice, lentils, legumes, potatoes, and sweet potatoes to support growth, brain development, and physical activity.

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A related misconception is that people with diabetes should avoid carbohydrates altogether. In fact, individuals with diabetes can consume carbohydrates as part of a healthy, balanced diet. The key lies in choosing the right types of carbohydrates, controlling portion sizes, and balancing them with proteins and healthy fats. Complex, high-fibre carbohydrates, including legumes, lentils, non-starchy vegetables, and high-fibre fruits, are digested more slowly and help maintain more stable blood sugar levels. Refined sugars and highly processed carbohydrates can cause rapid spikes in blood glucose and should be limited. Total calorie intake should also be tailored to an individual's age, sex, physical activity level, and overall health.

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Another commonly held belief is that skipping breakfast is an effective way to lose weight. Breakfast is the first meal after an overnight fast and provides the body with energy to begin the day. It may also help reduce digestive discomfort associated with an empty stomach. While some people believe that skipping breakfast helps reduce calorie intake, there is no evidence that eating breakfast causes weight gain or that omitting it results in weight loss.

Protein has also become the focus of numerous dietary trends, leading many people to believe that consuming large amounts of protein and supplements will automatically build stronger muscles. While protein is undoubtedly important for growth, repair, and muscle maintenance, excessive amounts are not necessarily beneficial. Protein intake should be balanced and accompanied by appropriate physical activity.

Food labels can also create misleading impressions. Many consumers assume that products labelled "low-fat" or "fat-free" can be consumed without concern for weight gain. However, manufacturers often compensate for reduced fat content by adding sugar, starch, or salt to improve flavour and texture. As a result, these products may contain as many calories as, or even more calories than, their regular counterparts.

Pregnancy is another area where dietary myths persist. The common notion that a pregnant woman must "eat for two" is often misunderstood. While pregnancy does increase nutritional requirements, particularly for nutrients such as iron and calcium, this does not mean that a woman should dramatically increase her food intake. The focus should be on maintaining a balanced and nutritious diet.

Parents often face challenges when it comes to children's eating habits. Children require a balanced diet that provides the nutrients necessary for healthy growth and development. The growing prevalence of childhood obesity in developed and developing countries has been linked in part to the increased consumption of fast food, sugary beverages, and highly processed snacks. Freshly prepared meals, fruits, vegetables, and other nutritious foods should form the foundation of a child's diet.

Good nutrition is not about following fads, eliminating entire food groups, or accepting popular myths as fact. It is about consuming a balanced diet in quantities appropriate to one's age, activity level, and health status.

The writer is a specialist in internal medicine.