BREAKFAST - A RESEARCH-BASED PERSPECTIVE
- 2 days ago
- 7 min read
Breakfast remains one of the most debated topics in modern nutritional science. While it's commonly perceived as the "most important meal," the current scientific basis for this claim is more specific and stronger: breakfast is the richest meal of the day not in terms of energy , but in terms of micronutrient density . This conclusion is a common finding of multinational nutritional analyses conducted by the International Breakfast Research Initiative (IBRI). Data from tens of thousands of individuals in Canada, the USA, the UK, Denmark, France, and Spain showed that although breakfast provides only an average of 16–21% of daily energy, a large portion of calcium, folate, riboflavin, magnesium, potassium, and especially fiber intake occurs at breakfast.
IBRI's second article takes this data a step further. This time, the aim is to establish a scientific standard for breakfast. To this end, individuals with the highest dietary quality in various countries were selected, their breakfasts were modeled, and the ideal balance of micronutrients, protein, and fiber was determined. As a result, high fiber, high-quality protein, low added sugar, and low saturated fat form the basis of the model that IBRI presents as a "scientific breakfast." In other words, the power of breakfast comes not only from being a meal, but also from being a biomarker that predicts daily nutritional quality .
Sports literature adds a different dimension to the subject. A comprehensive review published in 2025 shows that breakfast significantly contributes to physiological and cognitive performance, especially in endurance sports. Glycogen stores replenished by breakfast increase endurance in exercises lasting longer than 60 minutes, delay the onset of fatigue, and prevent performance decline. However, the situation is different in strength sports: If total daily protein and energy intake is sufficient, the presence or absence of breakfast does not change training performance. Therefore, while breakfast is a necessity for endurance athletes, it is more important for strength athletes in the context of protein timing .
SHOULD YOU SKIP BREAKFAST?
The Advantages of Eating Breakfast for Overall Health
According to IBRI's international analysis, although breakfast provides only 16–21% of the average daily energy, it is the richest meal of the day in terms of calcium, riboflavin, folate, potassium, magnesium, and especially fiber . This indicates that individuals who eat breakfast have a much more balanced micronutrient profile throughout the day . When breakfast is skipped, most of these nutrients are not replenished during the day. IBRI data also shows that those who eat breakfast have higher NRF (Nutrient Rich Foods) scores, particularly for fiber, calcium, and B vitamins .
