Are Protein-Enhanced Foods Really Necessary? Reasons Why a "Natural Diet" is Sufficient

1. The Arrival of the Protein Boom: Background and Current Situation

In modern supermarkets, shelves are filled with foods labeled as "high protein." Not only Greek yogurt and protein bars, but also bread, cookies, and instant noodles are part of this trend. With the spread of fitness culture, the image that "protein is necessary to build muscle" has strengthened, and these products are marketed as a kind of health item.

However, among these foods, there are quite a few where the nutritional balance other than protein is disrupted. Many contain high levels of salt or sugar and are highly processed, which can contradict the "health-conscious" approach to eating.

2. The Role and Necessary Amount of Protein

Protein is an essential nutrient for almost all structures and functions of the body, including muscles, skin, hair, nails, enzymes, hormones, and immune cells.

According to the Japanese Dietary Reference Intakes (2020 edition), the guideline is 60g per day for adult men and 50g for adult women. However, this is a standard for people with an average lifestyle, and those with high physical activity, the elderly, or pregnant women may be recommended to consume slightly more.

3. Actually, Diet Alone is Sufficient

In our daily diet, we already consume a lot of protein. For example:

• A bowl of rice (about 150g) …3g

• A piece of grilled fish (about 80g) …18g

• Half a block of tofu (about 150g) …10g

• Miso soup (with tofu and seaweed) …around 5g

• 200ml of milk …7g
  
  

As you can see, even with a typical Japanese meal, it's easy to reach the daily required amount. Moreover, it is characterized by a well-balanced combination of both plant and animal proteins.

4. Protein Can Be Obtained from Plant-Based Sources

In recent years, with the rise of vegan and vegetarian preferences, attention has been drawn to "plant-based protein." Legumes (such as soybeans, lentils, and chickpeas), nuts, and whole grains (such as oatmeal and brown rice) contain high-quality protein.

A point to note is that plant-based proteins may sometimes have a slightly inferior balance of essential amino acids. However, this can be complemented by consuming legumes and grains together, making combinations like "natto rice" or "tofu and barley rice" very rational choices.

5. The Pros and Cons of Protein-Enhanced Foods

【Benefits】

• Convenient protein supplementation

• Easy to use for busy mornings or as a snack

• Variety of flavors and types make it easy to continue

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【Drawbacks】

• Some products contain many additives and artificial sweeteners

• Tendency for high cost per serving

• Potential imbalance in other nutrients (fats, sugars)
  
  

6. Is Excessive Intake Counterproductive?

Excessive protein intake can lead to the following risks:

• Strain on the kidneys

• Weight gain due to calorie overload

• Constipation and worsened body odor (if centered on animal protein)
  
  

Particularly, Japanese people are considered to have a higher risk of kidney disease compared to Westerners, so it's important to be mindful of intake amounts.

7. Who Benefits from Protein Foods?

• Elderly (who need to maintain muscle mass)

• Post-surgery or during recovery from illness

• People engaging in intense exercise or training

• People with reduced chewing ability or appetite
  
  

For such individuals, protein-fortified foods can be an effective option. However, it is important to consult with a doctor or registered dietitian and adhere to the recommended usage and dosage.

8. Nutritionists Recommend a "Natural Protein" Lifestyle

• Include a protein source in every meal (main dish: fish, meat, tofu, etc.)

• Limit processed foods (beware of frozen pizzas and instant noodles)

• Utilize eggs, natto, milk, etc., for breakfast

• Choose natural ingredients like boiled eggs or cheese for snacks
  
  

9. Lessons from Traditional Japanese Cuisine

Natto, miso soup, grilled fish, tofu, eggs—staples of Japanese cuisine are all high in protein. Japanese people have traditionally been adept at balanced protein intake. Before jumping to protein-enhanced foods, revisiting the "family dining table" is the first step towards health.

10. Conclusion: Protein as a supplement. The foundation is natural food

Before relying on protein-infused snacks and drinks, take a moment to reassess your daily diet. The key is balance and consistency. Nutritionists repeatedly emphasize the simple truth that "natural meals are the best."

🔗 List of Reference Articles

1. Toronto Sun
   “You probably don’t need foods with added protein, nutritionists say”
   
   

2. Ministry of Health, Labour and Welfare
   "Dietary Reference Intakes for Japanese (2020 edition)"
   
   

3. Standard Tables of Food Composition in Japan (2022 edition)
   Ministry of Education, Culture, Sports, Science and Technology | Food Composition Database
   
   

4. Japan Dietetic Association
   Special Feature Page on "Protein Intake and Kidney Disease"
   
   

5. Harvard T.H. Chan School of Public Health
   “Protein and Health”
   
   

6. Academy of Nutrition and Dietetics
   “Plant-Based Proteins”