【Read This Before Surgery】Liposuction or Fasting, Which Is the Better Deal? A Thorough Comparison of Cost, Results, Risks, and Weight Regain

“How effective is liposuction, really?”

“I know it’s expensive, but how does it compare with fasting…?”

I think the more seriously you’ve worked at dieting, the more likely you are to have wondered this at least once.

In this article, I’ll thoroughly compare liposuction and fasting on four axes: “results, cost, risks, and sustainability”.

I understand the feeling of wanting to “solve it in one clean stroke with surgery.”

But before you do, it’s important to really understand the differences between the two.

After reading this article, decide for yourself which one suits you better.

What Is Liposuction? How It Works and What It Really Costs

A Simple Explanation of How Liposuction Works

Liposuction is a surgical procedure in which small incisions are made in the skin and a thin tube called a cannula is used to suck out subcutaneous fat directly.

Its biggest feature is that you can choose specific areas, such as the belly, thighs, arms, or upper arms, and remove fat from them in a targeted way.

Surgery time varies by area, but as a general guide, it often takes about 1 to 3 hours, with a downtime of about 1 to 2 weeks.

Liposuction Only Removes “Subcutaneous Fat”

There are two types of fat: “subcutaneous fat,” which sits just under the skin, and “visceral fat,” which builds up around the organs deep inside the abdomen.

Of these, liposuction can only remove subcutaneous fat.

Visceral fat sits right next to the organs, so it can’t be sucked out by inserting a tube.

If we compare it to a house, subcutaneous fat is like the insulation attached to the outer walls, and visceral fat is like all the stuff piled up inside the house.

Liposuction can strip off the insulation on the outer walls, but it can’t clear out the stuff inside the house.

Visceral fat is the one more closely linked to lifestyle diseases, so if you’re hoping for health improvements, keep this difference in mind.

How Much Does Liposuction Cost?

The cost of liposuction at clinics in Japan varies widely depending on the area and the type of procedure.

On top of this, there are often additional costs for pre-op tests, anesthesia, and aftercare, and it’s not unusual for the total to exceed ¥1,000,000.

Because liposuction is an elective cosmetic procedure, health insurance generally can’t be used.

Each clinic also sets its prices differently, so check in advance what’s included in the quote.

Liposuction Risks and Recovery Time

Because liposuction is surgery, it comes with the following risks.

The last point, “weight regain,” is especially important.

Liposuction removes fat cells, but your eating habits and lifestyle don’t change, so there’s a risk that the remaining fat cells will grow larger and the weight will come back.

Also, after surgery, you’re generally instructed to wear compression garments for a certain period.

It can take several months for the swelling and puffiness to go down and for the final results to become clear.

Keep in mind that you won’t have your ideal figure right after the surgery.

How Fasting Helps You Lose Weight Naturally, and What It Actually Costs

The Mechanism by Which Fasting Burns Fat

The basic idea of fasting is to switch your body into “fat-burning mode” by creating a set period of time without food.

About 8 to 12 hours after eating, the sugar stored in your body (glycogen) gets used up, and as the next energy source, body fat is broken down and ketone bodies are produced.

This is how fat burns during a fast.

Once 16-hour fasting becomes a habit, you can reliably create fat-burning time for your body every day.

Unlike liposuction, which targets specific areas, a key feature of fasting is that fat throughout your whole body, including visceral fat, gradually decreases.

For a more detailed look at ketone bodies and fat burning, also read how ketone bodies burn fat during 16-hour fasting.

Why Time Without Food Reduces Fat

When you eat, your blood sugar rises, and a hormone called insulin is released.

Insulin works to store excess energy as fat.

You could think of it as “the worker who carries goods into the fat warehouse.”

If you snack a lot and are eating something all day long, this worker keeps working nonstop, and there’s never a chance to take goods out of the warehouse.

When you create time without food through fasting, insulin settles down, and your body can take the fat stored in the warehouse out and use it.

What Fasting Actually Costs

The cost of fasting depends on the style you choose.

Compared with liposuction, the big difference is that fasting costs overwhelmingly less, and you can keep it up over the long term.

If you put the money you save on food toward quality ingredients like fish and vegetables, that’s a plus for building a healthy body too.

My Experience: 15 kg Lost in 3 Months at Almost Zero Cost

In my case, I didn’t buy anything special when I started fasting.

A cup of black coffee every morning, and normal meals at lunch and dinner.

That alone took my weight from 70 kg (about 154 lb) to 55 kg (about 121 lb) three months later.

If anything, my food spending dropped by more than ¥5,000 a month, so it felt like I’d succeeded at dieting at a “negative cost.”

Before I started fasting, I thought, “Fasting sounds bad for your body,” but when I actually tried it, I was amazed at how my body kept getting lighter.

No special supplements and no dietary restrictions at all.

I still keep it up today at almost zero cost.

Liposuction vs. Fasting: A Thorough Comparison on 4 Axes

① Results: Which One Really Helps You Lose Weight?

Liposuction removes fat directly from the treated area, so it works immediately.

Many people notice a “visible change” from the day after surgery.

However, it has no effect on visceral fat, and you can’t expect it to improve your overall metabolism or health.

Fasting is slower to show results, but it reduces body fat throughout your whole body, including visceral fat, and can also be expected to improve blood sugar, blood pressure, and cholesterol.

It’s a way to lose weight while lifting your overall health.

② Cost: Think in Terms of Lifetime Cost

Liposuction costs hundreds of thousands of yen to over ¥1,000,000 for a single surgery, and the total grows even larger if you have multiple areas treated.

And if the weight comes back, you may face the cost of another surgery.

With fasting, once the habit sticks, you can maintain it at almost zero cost for life.

Over a span of 10 or 20 years, the cost difference could reach several million yen.

③ Risks: Differences in Safety

Because liposuction is surgery, it carries certain risks, such as anesthesia risks, infection risks, and uneven results.

With fasting, you need to be careful about excessive fasting (prolonged fasting or extreme calorie restriction), but intermittent fasting such as 16-hour fasting is a method whose safety has been confirmed in many studies and that healthy adults can easily take up.

However, people with chronic illnesses, people who are pregnant or breastfeeding, and people taking diabetes medication should consult a doctor before starting.

If 16-hour fasting makes you feel unwell, one option is to shorten it to 12 or 14 hours and see how it goes.

④ Sustainability: Does It Stick as a Habit?

Liposuction’s biggest weakness is sustainability.

Even if surgery removes fat, if your eating habits and lifestyle don’t change, the remaining fat cells grow larger and the weight comes back.

Fasting takes 2 to 3 weeks to become a habit, but once it sticks, it becomes a “body rhythm” you naturally keep up every day.

Its greatest strength is probably that the benefits keep building the longer you continue.

For tips on building the habit, also check out tips for sticking with fasting for 21 days.

The 4-Axis Comparison at a Glance

To sum up, liposuction’s strength is “speed,” while fasting’s strengths are “ease of keeping it up and health benefits.”

The point isn’t which one is better, but choosing based on what matters most to you.

Which One Suits You? A Recommendation Guide by Type

Liposuction May Suit You If…

However, if you think surgery alone will solve everything, you may end up regretting it when the weight comes back.

It’s important to think of it as a package deal with improving your lifestyle.

If you choose cosmetic medicine, get consultations at multiple clinics, and listen carefully to the explanations of risks and additional costs before deciding.

Fasting May Suit You If…

Fasting isn’t a way to “lose weight fast,” but because the longer you keep it up, the more your constitution changes and the more your body becomes one that loses weight easily, it’s the best fit for long-term dieting.

If you want to know what changes happen after 2 weeks of fasting, be sure to check out “Feel It in 2 Weeks! Why 16-Hour Fasting Changes Your Body Fat, Appetite, and Focus”.

3 Questions to Ask Yourself When You’re Unsure

If you can’t decide which to choose, ask yourself the following three questions.

When you line up your three answers, you should be able to see what you’re really looking for.

Isn’t what most people want “a figure and health that last a lifetime”?

In that case, the order least likely to leave you with regrets is to first get your lifestyle in order with fasting, and only consider surgery if there are still areas that bother you.

It’s similar to how getting your body in shape before buying clothes makes almost anything look good on you.

On the other hand, if you have an important event in a few weeks and absolutely need to change one specific area, liposuction may become an option.

Even then, it’s reassuring to be prepared to get your habits in order with fasting or similar methods so you don’t slip back into your old eating habits after surgery.

How to Start Losing Fat with Fasting, and Things to Watch Out For

Start with 12 Hours

If you’re not used to fasting, don’t aim for 16 hours right away; start with 12 hours, from 8 p.m. to 8 a.m.

Once you get used to it, push breakfast back little by little to extend it to 14 hours, then 16.

Taking it step by step, like walking up a slope a little at a time, will likely make it easier for your body to adjust to the new rhythm.

While fasting, you get less water from food, so don’t forget to drink water or tea regularly.

Get What You Eat During Your Eating Hours in Order

To boost the effects of fasting, what you eat during your eating hours also matters.

Center your meals on protein (meat, fish, eggs, soy products) and vegetables, and go easy on sweet buns and sugary drinks.

If you start your first meal after a fast with soup or vegetables, your blood sugar is less likely to spike.

To avoid losing muscle, I also recommend combining fasting with walking or light strength training.

Muscle is like an engine that burns fat, so not letting that engine shrink will likely help you build a body that loses weight easily.

Keep Records to Track Your Changes

Changes are easier to see if you record your weight under the same conditions, such as every morning after using the bathroom.

Note down not only your weight, but also your waist measurement, how you feel, and how your clothes fit.

I also recommend taking a photo once a month in the same place and the same outfit.

Changes in your figure that are hard to see in the numbers will likely be obvious at a glance in photos.

Precisely because fasting doesn’t change you overnight like liposuction, finding ways to notice small changes gives you the strength to keep going.

Don’t Rush for Results

I don’t recommend jumping straight into a long fast of not eating for several days just because you want to lose weight quickly.

If you suddenly cut your food intake drastically, you tend to lose muscle as well as fat, which actually makes your body more prone to regaining weight.

Rather than trying to change dramatically in one month, changing steadily over six months or a year will likely turn out to be the faster route in the end.

People Who Should Avoid Fasting

If any of the following apply to you, don’t start fasting on your own judgment; consult a doctor.

If you feel dizzy or very fatigued while fasting, don’t push yourself; eat something.

Frequently Asked Questions About Liposuction and Fasting

For Long-Term, Healthy Weight Loss, Fasting Is the Strongest Choice

Liposuction works quickly and is an effective option for people who want to focus on changing specific areas.

On the other hand, considering the issues of cost, risk, and weight regain, it’s fair to say that if you want to maintain a healthy figure over the long term, fasting is by far the more rational choice.

While liposuction “temporarily removes fat,” fasting is an approach that “builds a constitution that burns fat more easily.”

When your constitution changes, you’re less likely to regain weight, and it becomes easier to maintain a healthy figure as you get older.

Liposuction and fasting are both means of reaching the same goal: “I want to lose weight.”

Whichever you choose, it’s fair to say that what ultimately maintains your figure is how you eat every day and the rhythm of your life.

If you’re worried enough about your figure to consider liposuction, that’s proof of how seriously you’re facing your body.

First, try directing that seriousness toward changing how you eat every day.

Three months from now, the changes you see in the mirror will likely help guide your next choice.

If you want to learn the basics of 16-hour fasting first, start by reading the complete guide to intermittent fasting.

If you want to keep up fasting more comfortably and effectively, using supplements that support fasting is another option.

They help support fat burning while easing hunger.

▼ Watch the video version of this article