Shinya Koso

Updated May 20, 2019.
Published May 22, 2017.

Shinya Koso Late Night Meal Diet Tablets are rather unique and encourage fat loss by boosting metabolism. It provides you with an enzyme and other natural ingredients to help burn hundreds of calories in no time. Is it possible to burn calories without exercise? Here is our review to help you decide.


  • May help improve your cognitive function
  • Uses natural ingredients
  • Claims to have no side effects


  • No scientifically proven fat burners
  • Limited details about the formula
  • Expensive
Shinya Koso
Designed by Dr. Hiromi Shintani, Shinya Koso, a Japanese dietary supplement, is supposed to help improve your metabolism and burn fat more effectively. It claims to slow down the buildup of fat in your body by encouraging it to utilise your fat reserves for energy. You get it in tablet forms that you can use to make a drink and consume daily to promote weight loss. It is more likely to work for seriously obese people.

Shinya Koso Overview

What you need to know about Shinya Koso

Manufactured by a popular supplement company, Shinya Koso Night Diet is a Japanese nightly drink powder designed to help you burn fat in a simple yet effective way. You can take a tablet with lukewarm water or you can take it in place of your regular tea. The manufacturer claims that it works better than a weight loss tea you may already be drinking. Not only does it trigger fat loss, it also helps lower fat buildup in your body. It certainly uses an enzyme and other natural ingredients, but offers no scientific evidence to support its formula.

What are the side effects of Shinya Koso?

Shinya Koso offers no information about side effects on the official website. They say their products use natural ingredients, so there is no need to worry about the side effects. However, it includes nattokinase, which is not a highly researched enzyme, so it is better to avoid it when you are pregnant or breastfeeding. Check out our ‘Side Effects’ section for more details.

How much does Shinya Koso cost?

You will have to spend $28.00 to get a pack of Shinya Koso Night Diet. You will get 30 tablets – you have to use one tablet a day, so you pay this much of money to get a 30-day supply of this weight loss supplement.

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Shinya Koso Key Features

Shinya Koso Night Meal weight loss tablets contain a number of natural ingredients and are very easy to take. The manufacturer makes big claims and says that the supplement helps you burn fat quickly and even plays a role in slowing down the buildup of fat. Unfortunately, there is no ingredient used to target fat directly, and even if there are some effective ingredients, we have no idea how much of that is included in the blend.

Shinya Koso Key Points

  • Easy to take
  • 30 tablets
  • Free shipping

We do not believe that Shinya Koso is a good option because there is no scientific evidence to support their claims. It does not have an impressive ingredient profile, but promises some outstanding weight loss results. For instance, the manufacturer claims:

By consuming the supplement, you will burn the calories from the equivalent of 10.4 bowls of rice, 204 grams of sugar, 6.46 pieces of cake, and 68.7 pints of beer.

Really, no ingredient in Shinya Koso weight loss tablets is powerful enough to produce such impressive results without you spending hours in the gym. Let’s take a look at what ingredients it really has.

The main ingredient in this supplement is an enzyme called nattokinase. Obtained from a Japanese food natto, the enzyme is supposed to help you burn fat by stimulating your metabolism. Natto is basically boiled, fermented soya beans that are supposed to improve your gastrointestinal health and regulate blood pressure as well. While nattokinase is an effective enzyme with some fibrinolytic activity, it is fairly under-researched.

Whatever research conducted on nattokinase has shown no effect on weight loss. Human intervention research has shown that nattokinase may have a minor blood pressure-reducing effect, but even then, you will only find limited evidence to support the fibrinolytic effects of nattokinase when taken orally. Moreover, many studies regarding nattokinase also include other agents, such as pycnogenol, which is why it is hard to confirm if nattokinase is completely useless or has some effects. Some studies have shown that 200 mg of nattokinase taken daily for 6 months showed no change in a blood lipid panel, which suggests that it may not be that effective for your cardiovascular health either.

How to Take Shinya Koso

They have not provided a great deal of information about how to take it, and labels in Japanese do not help either. They have just mentioned that you get 30 tablets and you have to take one every day. Since it is a night meal supplement, you should be taking it after dinner to promote fat loss.

These tablets also include fish collage. Collagen is actually a protein, which is essential for the health of your tendons, bones, skin, blood vessels, cartilage, and teeth. It provides you with some highly effective amino acids, such as hydroxylysine and hydroxyproline – it also contains glycine. While protein may help with satiety, you are not going to get results unless you also follow a good exercise program.

Fish collagen is supposed to work by supporting lean muscle mass. You are going to burn fat more effectively when you have lean muscles in the body. The problem is that there is no study suggesting that fish collagen actually helps build muscle in the first place. It means that you will first have to spend hours in the gym to build muscle and then use fish collagen to support those muscles, but that is going to take a lot of time and you will never be able to see any changes in your weight.

It is worth pointing out that some studies have found that collagen protein may lead to a better recovery post-workout and may also help regulate blood sugar, which in turn will lower risks of obesity. Here is an example:

In a 2008 issue of The European Journal of Pharmacology, glycine is said to possess powerful anti-inflammatory properties, and has the ability to increase the protein adiponectin. Also considered a hormone, adiponectin is a key player in regulating glucose levels, and making sure those fatty acids gets broken down. This can be particularly useful in cases of obesity and diabetes Type 2.

Just keep in mind that most of the studies suggesting that collagen protein may work are funded by supplement manufacturers, so you cannot trust them all. Even if you believe the above-mentioned study, you will still have to wait for months before you could notice any change in your body weight.

However, it is true that fish collagen may actually prove beneficial for your skin and even help prevent signs of skin aging. Regular consumption of collagen may offer several skin benefits, including improved smoothness, increased suppleness, better moisture retention, and prevention of deep wrinkle formation. But there is no point in using Shinya Koso diet tablets if your main objective is to help lose some fat and not improve your skin only.

Shinya Koso Concerns

  • No scientific evidence to support the formula
  • No details about the formula or ingredients
  • No information about daily use
  • No real fat burner included
  • No money-back guarantee

Then, Shinya Koso tablets include hyaluronic acid, a natural compound found in your skin. While there are some scientific studies confirming that hyaluronic acid may work by acting as a lubricant and cushion in your joints and tissues, there is no evidence to support its weight-loss benefits. If you spend hours in the gym, hyaluronic acid may help you with recovery, but other than that, it does nothing to boost weight loss.

Similarly, you get chondroitin in a weight-loss supplement that is not going to work great to burn fat. You may find some research suggesting that chondroitin sulphate, a chemical found in cartilage around joints, may help nourish the brain cells, but there is no clinical data suggesting that chondroitin may be helpful for weight loss. Some studies have found some results but they use the combination of chondroitin and glucosamine. However, that was an animal study and you cannot say for sure if there will be similar effects in humans too.

A supplement that does not contain true fat burners is never going to help you lose weight, especially when you are not following a good diet and exercise plan. Shinya Koso tablets do not have any ingredient to burn calories quickly. For a supplement that offers no details about its ingredients and has no scientific evidence to support its formula, it is never a good idea to send as much as $28. It may not be a lot as compared to other products, but you will eventually be losing this money, as Shinya Koso Late Night Meal Diet tablets are not going to outperform a weight loss supplement that has scientifically proven fat burners.

What does Shinya Koso claim to do?

Shinya Koso provides you with an enzyme, nattokinase, and some other natural ingredients to help improve your metabolism and burn fat quickly. While its formula has no scientific support, it still claims to provide you with the following benefits.

  • Boosts your metabolism
  • Burns fat quickly
  • Improves your cognitive function
  • Improves the health of your skin
  • Reduces aging effects on your skin

Does Shinya Koso work?

No, it does not. A supplement is only as good as impressive its ingredients are, and while Shinya Koso Late Night Meal Diet includes some impressive ingredients, they are known to facilitate fat loss. You cannot find any information about the formula used in Shinya Koso diet tablets; in fact, there is no scientific research to confirm if its ingredients even have the ability to produce a significant change in your weight. It relies heavily on an enzyme, nattokinase, which is obtained from a Japanese food called natto. Some studies suggest that nattokinase may have blood-thinning effects and improve the cardiovascular system, but there is no reliable human study supporting the use of nattokinase to deal with obesity. You will be better off trying a product that includes fat burners, such as green tea extract, yohimbe, protein, and even ALA, as they help suppress appetite and burn fat as well.

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Shinya Koso Ingredients

You can find several ingredients in Shinya Koso Night Meal tablets, and while these ingredients are impressive, most of them have nothing to do with fat loss. Here is what you find in this Japanese supplement:

  • Nattokinase: Obtained from natto, a Japanese food, this enzyme is supposed to improve your cardiovascular health and boost metabolism as well. No scientific evidence is there to prove these effects though.
  • Hyaluronic Acid: This natural compound is supposed to burn fat by boosting metabolism, but again, clinical data does not support these claims.
  • Fish Collagen: It is supposed to increase your intake of collagen, which in turn support lean muscle mass and help you burn fat even when you are resting. It is actually quite useless if you do not already have lean muscle mass and still trying to build muscle.
  • Chondroitin: It is mainly used to help improve your mental capacity. It really has nothing to do with weight loss.
  • Vegetable Lactic Acid: It is included in the blend more to improve your skin than to boost weight loss.

Shinya Koso Side Effects

Even though Shinya Koso has natural ingredients, it does not mean it is going to be safe for everyone. For starters, you may not like the taste because it contains fish collagen. You can also develop an allergic reaction if you are allergic to collagen sources.

It includes nattokinase, which may not be safe for pregnant and breastfeeding women. The enzyme is also considered a ‘clot thinner’, so it is important to avoid it and Shinya Koso in case you have any bleeding disorders. You should also avoid using it if you have undergone surgery recently – it can increase the risk of bleeding after surgery.

Caution: Not suitable for individuals under 18. Avoid if you are pregnant or breastfeeding.

Shinya Koso Customer Feedback

You cannot find many reviews for Shinya Koso, but whatever little information you can find is enough to suggest that the product does not work as claimed by the manufacturer. Here are some examples:

I have been using these tablets for a few weeks and have not seen any effect.

I think my body is not getting used to these tablets, as I always notice stomach distress after taking them at night.

Shinya Koso Money-Back Guarantee

No, you do not get a money-back guarantee with this product.

Where To Buy Shinya Koso

You can buy it directly from the official website.

Watchdog Verdict

Marketed as a weight loss drink mix, Shinya Kos Night Diet makes some big claims about boosting your metabolism and burning fat in a short time. It claims to burn hundreds of calories; in fact, the manufacturer says a pack of Shinya Koso will burn calories found in 204g of sugar or 10.4 bowls of rice. This may interest you, but unfortunately, there is no clinical or scientific evidence to support these claims. Actually, there is nothing in the supplement that targets fat directly or boosts your metabolism quickly enough to burn extra calories after a meal. Some ingredients like nattokinase, an enzyme, may help improve your cardiovascular health, but you are not going to get any weight loss results whatsoever. Our verdict: do not waste your money Shinya Koso and instead try to lose weight by following a balanced diet and good exercise program.

How does Shinya Koso compare to Phentaslim?

Criteria Shinya Koso Comparison Phentaslim comparison
Clinically Proven Ingredients
Side Effect Free
Positive Customer Reviews
24/7 Support
Money-back Guarantee

Disclaimer: Our reviews and investigations are based on extensive research from the information publicly available to us and consumers at the time of first publishing the post. Information is based on our personal opinion and whilst we endeavour to ensure information is up-to-date, manufacturers do from time to time change their products and future research may disagree with our findings. If you feel any of the information is inaccurate, please contact us and we will review the information provided.

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