For Men Who Work Out but Aren’t Seeing Changes in Their Bodies
“I started strength training, but I’m struggling to lose weight.”
“I want to build muscle, but I don’t know what or how much I should eat.”
“I know nutrition is important, but calculating calories every day feels like too much work.”
Many men have concerns like these.
If you want to build an attractive physique, nutrition management is just as important as training.
Especially in your 30s and 40s, busy work schedules, business dinners, drinking parties, and lack of exercise can make it difficult to maintain healthy eating habits.
However, managing your nutrition does not necessarily mean following a strict diet.
The basics are understanding how many calories and nutrients your body needs and adjusting your eating habits according to your goals.
In this article, Gran Gym, a men-only personal training gym, explains the fundamentals of nutrition management for weight loss and muscle building.
We also cover this topic on the official Gran Gym YouTube channel.
Watch the video here:
1. The First Thing to Understand About Nutrition: Calorie Intake
When you begin working on your physique, one of the first things to understand is calories.
The relationship between the energy you consume through food and the energy your body burns plays a major role in whether you gain or lose weight.
The basic principles are:
- When calorie intake is lower than calorie expenditure, weight tends to decrease.
- When calorie intake is higher than calorie expenditure, weight tends to increase.
- When calorie intake and expenditure are approximately equal, weight tends to remain stable.
However, body weight also fluctuates depending on hydration and food intake, so there is no need to judge your progress based only on daily changes.
For Men Who Want to Lose Weight
If your goal is to reduce body fat, the basic approach is to consume fewer calories than your body burns.
For example, if a man burns approximately 2,400 kcal per day, he might start by setting his daily calorie intake at around 2,000–2,100 kcal.
Rather than drastically reducing your food intake from the beginning, make adjustments that you can realistically maintain.
For Men Who Want to Build Muscle
If your goal is to gain muscle, a common approach is to consume slightly more calories than you burn while ensuring adequate protein intake.
For example, if your daily calorie expenditure is 2,400 kcal, you might start with approximately 2,600 kcal and monitor your progress.
However, individual calorie requirements vary depending on age, height, weight, and activity level.
2. What Is PFC Balance? Three Essential Nutrients Men Should Understand
When managing your nutrition, PFC balance is just as important as total calorie intake.
PFC refers to three macronutrients: protein, fat, and carbohydrates.
P: Protein
Protein is an essential nutrient that helps build and maintain muscles, skin, and other tissues throughout the body.
It is found in foods such as meat, fish, eggs, natto, tofu, and dairy products.
Men who strength train should make sure they consume enough protein based on their body weight and activity level.
F: Fat
Fat is an essential nutrient used in the formation of cell membranes and hormones.
There is no need to eliminate fat completely, but consuming too much can easily increase your total calorie intake.
Rather than relying heavily on fried foods and fatty cuts of meat, include appropriate amounts of foods such as fish and nuts.
C: Carbohydrates
Carbohydrates are an important source of energy for physical activity.
They are found in foods such as rice, bread, noodles, and potatoes.
You do not need to eliminate carbohydrates completely just because you are trying to lose weight.
Consuming an appropriate amount based on your goals is also important for maintaining training performance.
3. How Many Calories Are in 1 Gram of Each Macronutrient?
Each of the three macronutrients provides a different amount of energy.
| Nutrient | Calories per gram |
|---|---|
| Protein | 4 kcal |
| Fat | 9 kcal |
| Carbohydrates | 4 kcal |
For example, consuming 100 grams of protein provides 400 kcal, while consuming 50 grams of fat provides 450 kcal.
Because fat contains more calories per gram than protein or carbohydrates, it is particularly important to avoid excessive fat intake when managing your nutrition.
4. Nutrition Strategies Differ for Weight Loss and Muscle Gain
For Men Who Want to Lose Weight
When losing weight, the goal is to reduce body fat while preserving as much muscle as possible.
To achieve this, you need to adjust your total calorie intake while maintaining sufficient protein consumption.
A practical approach might include rice and eggs for breakfast, a set meal with meat or fish for lunch, and a dinner centered around protein and vegetables.
On days when you have business dinners, you can also adjust the amount of food and fat you consume during your other meals.
The key is to create eating habits that do not feel excessively restrictive.
For Men Who Want to Build Muscle
If your goal is to increase muscle mass, combine strength training with sufficient food intake.
Simply increasing protein is not enough.
Carbohydrates are also important because they provide energy.
If you are not eating enough, start by establishing basic habits such as eating breakfast, not skipping lunch, and incorporating snacks between meals.
The first priority is making sure your body receives enough energy to support muscle growth.
5. Don’t Forget Vitamins and Minerals
Paying attention to your PFC balance is important, but it is not the only part of good nutrition.
Vitamins and minerals are also essential for maintaining normal bodily functions.
For example, B vitamins are involved in energy metabolism, while calcium and magnesium play roles in muscle and nerve function.
Rather than eating only meat and fish, include a variety of vegetables, seaweed, mushrooms, and fruits.
Increasing the variety of foods in your diet can help you obtain a broader range of essential nutrients.
6. You Can Manage Your Nutrition Even with Convenience Store Meals and Eating Out
For busy men, preparing every meal at home is not always realistic.
However, with the right food choices, it is possible to manage your nutrition even when relying on convenience stores and restaurants.
At a convenience store, you might combine rice balls with salad chicken, boiled eggs, and a salad.
When eating out, choose balanced set meals that include a staple food, a main dish, and side dishes, such as a grilled fish set meal or ginger pork set meal.
At drinking parties, include foods such as sashimi, yakitori, and chilled tofu, while trying not to make fried foods or late-night meals a regular habit.
Making small, better choices consistently is the key to maintaining a realistic nutrition plan.
7. Building a Physique That Women Find Attractive
From a woman’s perspective, an attractive male physique is not necessarily about having the biggest muscles.
A body with natural thickness through the shoulders and back, a well-maintained waistline, and good posture can create a positive impression, even when fully clothed.
To achieve this, it is important to combine strength training with nutrition management so that you can maintain a healthy balance between body fat and muscle.
Even in your 30s and 40s, reviewing your eating and exercise habits can help you work toward a better physique.
Conclusion | Start Managing Your Nutrition with Calories and PFC Balance
If you want to improve your nutrition, the first step is to clarify your goal.
Do you want to lose weight, build muscle, or maintain your current physique?
Your calorie requirements and food intake will differ depending on your objective.
It is also important to pay attention to the balance of protein, fat, and carbohydrates while ensuring you consume enough vitamins and minerals.
Following a perfect diet for one week is less useful for long-term body transformation than maintaining realistic eating habits for several months.
At Gran Gym, our female trainers support each client’s training and body transformation based on their individual goals and lifestyle.
This article was brought to you by Gran Gym, a men-only personal training gym.
At Gran Gym, our professional female trainers primarily provide training guidance for men aged 30 and above.
Why not enjoy building a more attractive physique?
We also welcome clients who want to improve their health or lose weight.
In addition to personal training, we offer stretching sessions and mobile personal training services.
If you are looking for a personal gym in Azabu-Juban, Akasaka, Minami-Aoyama, Jiyugaoka, Ginza, Higashi-Nihonbashi, Osaka Umeda, or Honmachi, or if you would like to receive training guidance from professional female trainers, we would love to welcome you to Gran Gym.
We look forward to seeing you at a trial session!
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