Final answer:
To gain weight, individuals should avoid unbalanced caloric intake and fad diets; instead, they should focus on consuming nutrient-dense foods that allow for a caloric surplus in a healthy manner.
Step-by-step explanation:
For an individual trying to gain weight, it is not recommended to ignore nutritional balance in favor of simply increasing caloric intake. Consuming a diet focused on high-energy foods without considering their nutritional quality could lead to health problems. A healthy approach to weight gain should involve eating plentiful and nutrient-dense foods, comprising a balanced intake of carbohydrates, proteins, and fats, while still ensuring that caloric intake exceeds expenditure.
For instance, rather than eating a large volume of low-fat or non-fat foods that contain added sugars, it is better to include wholesome foods that are naturally rich in nutrients. These foods can contribute to a healthier weight gain process. Also, fad diets that propose rapid weight loss and overconsumption of certain nutrients should be avoided as such diets are often unsustainable and unbalanced, potentially leading to a depletion in essential vitamin and mineral intake and an increase in fat storage due to excess sugars.