Around 10 a.m., I often feel sluggish and lose focus, even though I sleep regularly and have breakfast on time the night before. What breakfast foods could be causing this? (Huyen, 36, Hanoi)

Eating at the right time promotes weight loss, but what are the best times of day? (Minh Duc, Ca Mau)

I often feel sluggish and have trouble concentrating in the mornings. What should I eat for breakfast to boost my energy, get enough nutrients, and avoid feeling tired? (Lien, 35, Hanoi)

Processed meats and foods are high in salt and unhealthy fats, while pastries and sugary cereals can overload the kidneys, making it difficult to eliminate toxins.

My family often has sticky rice or white bread for breakfast. Do these foods increase blood sugar, and what should I limit in the morning to avoid blood sugar spikes? (Quynh, 37, Hanoi)

Skipping breakfast entirely, skimping on fiber, drinking fruit juice, or overeating can lead to unpredictable blood sugar fluctuations.

Breakfast is considered the most important meal of the day, but eating the wrong foods can leave you feeling sluggish, tired, and mentally foggy.