Boosting protein intake at breakfast prolongs satiety, prevents overeating at lunch, and slows blood sugar spikes. It also stimulates muscle synthesis.
Researchers at Hiroshima University in Japan recently published an analysis in the international journal Nutrition Reviews showing that the muscle mass maintenance effect was most pronounced in groups that consumed 20 to 30 grams of protein at breakfast. The study noted that elderly individuals in particular face a higher risk of sarcopenia when morning protein intake is insufficient.
A 2024 study by a research team at Aarhus University in Denmark also found that a protein-rich breakfast simultaneously boosts satiety and concentration.
The problem is that Korean diets show the opposite trend. According to a study analyzing the Korea National Health and Nutrition Examination Survey (2016-2018), the protein intake distribution by meal among Korean adult men was 17.4% at breakfast and 38.4% at dinner — a more than twofold gap.
The habit of skipping breakfast or relying on rice-centered meals contributes to this imbalance. To meet the recommended 30 grams of protein per meal at breakfast, options beyond eggs (about 6 grams per egg) are needed. U.S. health media outlet Eating Well has compiled five breakfast foods that contain more protein than a single egg.
Smoked salmon contains 15.6 grams of protein per 85 grams. It also provides omega-3 fatty acids, vitamin B12, and vitamin D, supporting protein metabolism and bone health. The American Heart Association (AHA) recommends eating fatty fish twice a week to reduce the risk of cardiovascular disease. Toast with whole-grain bread, avocado, and scrambled eggs is a simple option.
Plain Greek yogurt contains 12.5 grams of protein per half cup. It is effective for blood sugar and weight management, and U.S. health media outlet WebMD explains that the lactic acid bacteria in Greek yogurt promote digestive tract activity and stabilize bowel rhythms. Topping a sugar-free product with nuts, berries, and honey can supply protein, dietary fiber, and fat all at once.
Cottage cheese contains 10 grams of protein per 100 grams. In a Florida State University study, the group that consumed cottage cheese showed less body fat accumulation and more active muscle formation than the control group. Another strength is that casein protein digests slowly, raising blood sugar gradually. Dietitian Katherine Rosenthal recommended eating it with fruit and honey, similar to yogurt.
Plant-based proteins should not be overlooked. A half cup of boiled black beans contains 7.6 grams of protein along with dietary fiber. The Journal of the International Society of Sports Nutrition and other publications have reported that the muscle recovery effects of pea and potato proteins are comparable to those of whey protein.
A German study also found that replacing some animal protein with plant protein reduces the risk of chronic diseases. Anthocyanins, abundant in black beans, reduce oxidative stress and inflammation, contributing to improvements in diabetes and cardiovascular disease markers.
Experts recommend balancing protein intake with vegetables and whole grains rather than focusing on protein alone. Excessive protein can place a burden on the liver and kidneys.
