If you lean too much on chicken breast, your life will become lopsided

A long time ago, my daughter said this to me.

"Dad, chicken breast again?"

"It's not 'again.' Today it's curry flavor, not salt and pepper."

"...It's the same thing."

It's not the same. Today, there's broccoli too.

"We had that yesterday, too."

...We did.

I think this conversation is a daily occurrence in the households of people who lift weights.

I graduated from the University of Tokyo Faculty of Medicine and have been working as an internist while training for 17 years. My BIG3 total is 520kg. Bench press 140kg, squat 180kg, deadlift 200kg.

My body is reasonably well-built. But I haven't been able to maintain peace at the dinner table at all.

In this article, I will write about the sins committed at home by a 'doctor who has lived with chicken breast' for 17 years, and the optimal dietary solution I arrived at from that experience.

This will likely be useful for both those who lift weights and their partners.

The reality of a weightlifter's refrigerator

When you open the refrigerator in my house, this is what it looks like.

The right half—'normal ingredients' for my wife and children. The left half—my fuel.

The breakdown of the fuel is as follows.

• 2kg of chicken breast

• 3 bags of broccoli

• Oatmeal

• 3 packs of 10 eggs (preferably free-range)

• Oikos (Plain)

That is all.

My wife says, "There's a cultural disconnect happening inside our refrigerator."

...I can't deny it.

5 sins that fitness enthusiasts commit at home

I've committed every single one of these myself.

Sin #1: Checking the calories on the back of the menu when eating out

My wife told me, "I don't want to go out to eat with you anymore."

I still check now, but I order in silence. I've grown.

Sin #2: Reading aloud the ingredient labels on children's snacks

"Just one of these has 12g of sugar. It also has a lot of high-fructose corn syrup."

"...Dad, you're annoying."

Even if you're right, you'll still be disliked. I've learned this as a doctor and as a father.

Sin #3: Bringing protein powder on trips

The first day of a family trip. When I opened my suitcase at the hotel, the shaker lid was open.

My wife and daughter's clothes were covered in double-chocolate flavored powder.

I will never forget the look on my wife's face.

Since then, I only bring individually packaged protein. Lessons are learned in blood.

Sin #4: Eating a different meal than the rest of the family

"Dad, why don't you eat the same thing as us?" "Dad thinks this is delicious." "No way."

That was a lie.

Sin No. 5: Placing a large amount of mysterious powder next to the baby's formula.

They are labeled "Right after waking up," "Pre-workout," "Post-workout," and "Before bed."

My wife got seriously angry at me. Now I keep the shelves separate. Physically.

What I want to convey as a doctor—you don't need to eat only chicken breast.

I'm going to talk seriously now.

Chicken breast is called the "best" because it hits the trifecta of being high-protein, low-fat, and cheap.

Per 100g, it has 23g of protein, 1.9g of fat, and about 108 kcal. It's flawless in terms of cost-performance and nutritional efficiency.

But this is a matter of "efficiency," not a matter of the "correct answer."

You can get protein from sources other than chicken breast.

Fish is fine. Eggs are fine. Tofu is fine. Pork tenderloin or lean beef are also perfectly fine.

In fact, from a doctor's perspective, relying too much on the same protein source is more of a problem.

Chicken breast has almost no EPA or DHA. It is also low in iron and vitamin B12. Zinc is overwhelmingly more abundant in beef and oysters.

"If you just eat chicken breast, you can't go wrong" is a superstition in the bodybuilding world.

What is happening inside the body cannot be seen through macronutrients alone.

When I was in my 20s, I lived alone, so eating chicken breast every day wasn't a problem. In fact, it was the most efficient way.

After I got married and had children, I realized something.

"Efficiency" alone doesn't make a dinner table.

Now I have chicken breast three times a week. The rest is fish, pork, and occasionally beef.

If asked which is more important—my daughter saying, "Daddy, today's dinner is delicious," or having a perfect PFC balance—

Both are important.

But honestly, I think my daughter's smile boosts my testosterone more.

Optimization and life are two different things

When you get hooked on strength training, you want to optimize your body.

PFC balance. Sleep duration. Supplements. Training volume and intensity.

Everything can be managed with numbers. Things that can be managed with numbers can be improved.

Many of my business owner clients are the same type. They start tracking body KPIs with the same feeling as tracking business KPIs. That in itself is not a bad thing.

But you cannot optimize the dinner table with your family.

"I'll pass, Dad, because there's too much fat in this today."

Nutritionally, that's correct.
But my 5-year-old daughter only thinks, "Dad won't eat with me."

I don't feel like talking about PFC balance to my wife, who silently washes my clothes covered in chocolate-flavored powder.

Rather than grilling chicken breast perfectly, eating from the same pot as my family is probably better for my health in the long run.

There is no evidence. There are no research papers.

But after 17 years of training and raising two children, this is what I am most convinced of right now.

There are parts of human health that cannot be measured by spreadsheets. The time spent around the dinner table, eating while laughing, the conversation of "This is delicious." We have not yet been able to quantify the impact such things have on immunity and hormones.

But I know it from experience.

The optimal dietary solution I arrived at after 17 years

I will write down concrete guidelines you can use starting today.

Chicken breast 2-3 times a week Any more than that and your family life will fall apart. Have at least three variations for changing the flavor.

Fish 2-3 times a week If you have salmon and mackerel, you can get by in life. You can't get EPA and DHA from chicken breast.

You can eat eggs every day A perfect food created by God. The number you eat depends on your constitution and goals. For most people, 2-3 eggs a day is no problem.

Eat as much tofu and natto as you like Cheap. Delicious. And your wife won't get mad at you. You don't need to worry about the claim that isoflavones lower testosterone if you are consuming normal amounts.

Occasionally have lean beef or pork tenderloin Iron and B-complex vitamins are lacking if you only eat chicken breast. People who train a lot or women in particular should be conscious of getting these.

And once a week, eat the same thing as your family

"Daddy, we're eating the same meal today!"

Those words are more effective than a protein shake.

Probably.

Things to do starting today

Open your refrigerator and compare your space with your family's space.

If a "cultural divide in food" is happening, try eating the same menu as your family just once this week.

That's all you need to do.

You can adjust your PFC balance the next day.

Muscles won't disappear in a day. But family trust can only be built up through accumulation.

Summary

• Chicken breast being the "best" is a matter of efficiency. You can't get EPA/DHA, iron, B12, or zinc from chicken breast alone

• If you rely on the same protein source, your nutrition will be unbalanced. Rotate 2-3 times a week, and use fish, pork, beef, eggs, and tofu for the rest

• You cannot optimize family meals. Having a separate menu for just one person will erode trust in the long run

• Eat the same thing as your family once a week. "Daddy, we're eating the same meal today!" is effective

• Muscles won't disappear in a day. Family trust can only be built up through accumulation

Thank you for reading this far.
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For those who want to know more (Related articles)

Two articles to help you organize your morning meals and weekly strength training plan after moving on from a chicken-breast-only diet.

▼ The trap of going to the gym without eating breakfast
After reducing the amount of chicken breast, the next step is your pre- and post-workout meals. If you are training on an empty stomach in the morning, please read this.

▼ Once you've organized your diet, the next step is your weekly strength training plan
After reducing chicken breast to 2-3 times a week, the next step is your training design. Based on 137 reviews from the latest US guidelines, I have organized the optimal number of sets to make progress without overtraining.

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⚠️ This article provides general nutritional information and is not specific medical advice. If you have food allergies or are currently undergoing treatment, please consult your primary physician. Also, peace at my own dinner table is still currently under negotiation.