Updated: 04/18/2017 - Site operated by Leptigen

3 Day Diet Review - Does This Short-Term Diet Work?

  • 261 User Comments
  • Rating: 3.4. From 201 votes.
By Summer Banks Apr 08, 2017

We’ve heard a lot of buzz around the 3 Day Diet, so we wanted to learn all we could. We conducted a detailed review, looking at the 3 Day Diet’s side effects, ingredients, customer service and clinical research.  Hundreds of experiences were taken into consideration. We then summarized and refined to give you the info you need.

3 Day Diet Readers: Click here to find out why we're giving away samples of our product, Leptigen.

What is the 3 Day Diet?

To start, 3 Day Diet promises great results, but the name can be a bit deceiving. It doesn’t end after 3 days, but the majority of the weight-loss is done over the period of 72 hours. It works by restricting caloric intake in the beginning and maintaining a healthy diet thereafter. This cycle is meant to be repeated on an ongoing basis. Meal choices include grape fruit, chicken, tuna and toast with peanut butter. The plan is easy to follow because it comes with details. [1]

The 3 Day Diet has gone by many names, but nobody knows exactly where it came from. The first mention was in 1985, so it has withstood the test of time, which is a good sign. The plan is free and easy to find online, the required foods are all affordable and people do seem to lose weight with this program, but read on…

Lack of Results – “Fluctuating Weight”

Our first concern with the 3 Day Diet is the lack of results. Some users saw significant weight-loss followed by weight gain during the 4 day “off period,” while others saw minimal loss while their body adjusted to the restricted caloric intake. “Most dieters will lose 3-7 pounds,” said our Research Editor,  “But that weight comes right back when you’re finished.” [2]

“I was optimistic after losing 5 pounds in 3 days, but after the first week, my net change was less than 1 pound,” said one user.

“I was on this diet for 2 months, and my constantly fluctuating weight caused me to stop,” said another.

Health Concerns – “Another Issue”

Something else that caught our attention with the 3 Day Diet was that the same health concerns raised by many of the fad diets out there also make a play here. According to one online reviewer with some medical experience, “serious nutrient deficiencies can lead to repeated cycles of weight-loss and gain.” At just 500 calories per day, this could be an issue. [3]

“My doctor told me many of my issues stemmed from the roller coaster of weight-loss and weight gain,” said another review.

Our research with diet supplements has shown that if there is a part of a workout or diet plan that is particularly troublesome (restrictive diet, painful workout routine, harmful side effects, etc.), the likelihood of long-term weight-loss is reduced. If the 3 Day Diet really does cause long-term health concerns, it could make it difficult for those looking to lose weight and keep it off. [4]

The Science Behind 3 Day Diet – “Validated?”

Minimizing caloric intake is one of the best, proven ways to lose weight quickly, but the 3 Day Diet takes that to an extreme by limiting calories to just 500 per day. Scientific research suggests that the rapid weight-loss is unhealthy. We value clinical proof at DietSpotlight and when the science suggests that a product or program may not be safe, we see major red flags.

The Bottom Line – Does the 3 Day Diet Work?

Are we getting ready to start the 3 Day Diet? We like the longevity, the simplicity and availability of the plans. Unfortunately, scientific research gives us reason for concern. The rapid weight-loss and fluctuating weight may lead to long-term health concerns and there is no research proving that a diet that restricts intake to 500 calories is safe or effective for long-term. We’re also concerned about the lack of permanent results and support for this diet plan. [5]

If you’d like to slim down and get to your goal weight, we suggest you go with a product that offers affordable results with safe ingredients that are tested and shown to help you lose weight.

Among the best products we’ve seen this year is called Leptigen. The ingredients have been featured in clinical testing that backs up claims it helps dieters lose weight by increasing fat loss and boosting metabolism. As if that wasn’t enough – dieters are reporting some amazing results. This is exactly what people should be looking for in a weight-loss supplement.

Right now, the makers of Leptigen are making their product available as part of a Special Trial Offer, showing that they’re confident you’ll like it. There’s really nothing to lose but those extra few pounds!

Previous 3 Day Diet Review (Updated September 20, 2014):

Does the Military Diet Work?

So many weight loss programs and dieting systems date back several decades. Apparently, people have been battling the bulge for many years. Take a look at the AHA 3 Day Diet plan. This specific system first hit the weight loss scene back in 1985. It basically aims to promote fast weight reduction, lower cholesterol levels, boost the user's energy, and even cleanse the body to some extent. What makes the AHA 3 Day Diet plan unique is that it really lasts for three days at a time. Once the three days have passed, the user enjoys four or five days of "normal or regular" eating, but then the diet plan resumes.

Like so many other weight loss programs today, there is no fitness or exercise regimen involved with the 3 Day Diet plan. Potentially users can drop up to a whopping 10 pounds within the three day period. Although there is a specific eating plan for this program, dieters are directed not to overeat or under-eat. To elaborate a little more, the first daily meal consists of: day one breakfast (half of a grapefruit, one piece of toast with peanut butter, and black coffee or tea) lunch (one piece of toast, one half can of tuna, and one cup of tea or black coffee), and dinner (one cup of carrots, one cup of vanilla ice cream, one cup of green beans, one apple, and three ounces of chicken/lean meat). While day two and three vary some with the foods, the portions pretty much stay the same. Other than these foods, users are to consume four cups of water each day.

AHA 3 Day Diet: Product Features

The 3 Day Diet plan is one of several weight loss systems that involves the consumption of specific foods. While there are no supplements or exercise routines involved with this program, dieters are directed to follow a specific meal plan for three days at a time. Even though 4-5 days are taken off in between dieting sessions, the 3 Day Diet can carry on indefinitely to encourage fat reduction. Ideally this diet should increase the dieter's energy, help with fat burning, cleanse the body, and lower cholesterol levels. There is no clinical research to support the effectiveness. This leaves us skeptical about answering - does the 3 Day Military Diet work?

Advantages of 3 Day Diet

  • There are no potentially harmful diet drugs involved with the 3 Day Diet.
  • Dieters only have to commit to this weight loss program for three days at a time.

Disadvantages of 3 Day Diet

  • There are no success stories presented on an official website for the 3 Day Diet.
  • It's unclear how this program will cleanse the body, lower cholesterol levels and boost the user's energy since no clinical studies are provided.
  • There are no fat burning supplements or appetite suppressants utilized with the 3 Day Diet plan.

Conclusion: Does the Military Diet Work?

In some respects, it appears that the 3 Day Diet is somewhat of an 80s "fad diet plan." On the upside, this weight loss program does encourage the consumption of water, vegetables and lean meats, however, there is no exercise encouraged with the 3 Day Diet. This may work as a red flag for some dieters. Furthermore, there is no clinical data or trials offered to support the overall effectiveness of this weight loss plan. So, to answer the question, does the military diet work, maybe not.

3 Day Diet Questions & Answers:

We picked apart hundreds of user comments about the 3 Day Diet and created this helpful FAQ.

What are the side effects of the 3 Day Diet?

Some of the potential side effects of the 3 Day Diet, as reported by customers, include upset stomach, dehydration, irregular bowel movements, constipation and nausea.

What are the ingredients in the 3 Day Diet?

The 3 Day Diet ingredients include a combination of common foods, including, fruits, vegetables, grains and dairy.

Does 3 Day Military Diet work?

There’s no clinical research linking the 3 Day Military Diet to people losing weight. Eating extremely low-calorie meals for three days could cause weight-loss, but there’s no evidence to makes such a case. [1]

You may want to consider a supplement like Leptigen, which contains some clinically-tested ingredients, instead of a restrictive program like the 3 Day Diet.

Does the Military Diet work?

Military Diet or Kaiser 3 Day Diet are just two alternative names.

How much does the 3 Day Diet cost?

The cost of the 3 Day Diet depends on the foods you purchase. Considering the majority of the choices come from your home, there’s a chance the expensive could be virtually zero.

How should I follow 3 Day Military Diet?

You should follow the 3 Day Diet by eating low-calorie foods for three days. The food choices are typically found in your pantry and don’t require additional purchases. You can substitute, but the choices are limited.

Can I take 3 Day Diet if I have a health condition?

Women who are pregnant or nursing, those with health conditions, anyone taking prescription medications of any kind or people under 18 years of age should contact a healthcare professional prior to following any weight-loss plans, including the 3 Day Diet.

What do users like about 3 Day Diet?

We found that users liked the ability to substitute foods on the 3 Day Diet.

What do users NOT like about 3 Day Diet?

Some users don’t like the calorie restrictions on the 3 Day Diet. [2]

How do I contact the 3 Day Diet customer service department?

There’s no way to contact the 3 Day Diet customer service department, considering there’s no official website selling the plan.

Can I eat prepackaged foods on the 3 Day Diet?

No, you can’t eat prepackaged foods on the 3 Day Diet.

Can I substitute foods on the 3 Day Diet?

Yes, there are several foods you can substitute on the 3 Day Diet.

What is the maximum caloric intake on the 3 Day Diet?

The maximum caloric intake on the 3 Day Diet is no more than 1,200 per day.

Can I continue to drink as much water as I want on the 3 Day Diet?

Yes, you can drink as much water as you want on the 3 Day Diet. The plan recommends consuming a minimum of three liters of water per day.

If I substitute fruits in the 3 Day Diet, what’s the best choice?

If you substitute fruits in the 3 Day Diet, the best choices are one with lower sugar content.

Does 3 Day Diet come with a guarantee?

The 3 Day Diet doesn’t come with a guarantee.

Do you know of any special deals or discounts on 3 Day Diet?

We didn’t find deals or discounts on 3 Day Diet, considering the information is readily available online. If you looking for something that’s going to save you money and potentially help you achieve your goals, consider a product our readers have been going crazy over. The supplement is Leptigen and it contains some clinically-tested ingredients and comes with a Special Trial Offer, which is merely the cost of shipping and handling. Click here to give it a try.

3 Day Diet Side Effects:

3 Day Military Diet reviews are mixed. There are only a few reports of side effects. However, because everyone reacts differently to weight loss program, it’s wise to take potential risks into account. These are the most commonly mentioned side effects.


A headache can really put a damper on your day. When it gets really bad, you may lose balance and feel dizzy because of the pain.

There are headaches of different severities. Some are mild, like an uncomfortable tightening sensation. Others are more serious. They’re a stabbing, piercing sensation.

What causes headaches?

Hunger, lack of sleep, and being out in the sun unprotected are common causes of headache.

For the most part, headaches can be cured with rest and over-the-counter pain relievers. They go away after just a few hours.

Sometimes, headaches are signs of an underlying illness. For example, glaucoma, brain aneurysm, and ear infection are all known to provoke headaches.

Stomach Ache

Stomach pains can be overwhelming. When they get severe, it can become nearly impossible to go about your daily business.

Bloating, nausea, and fever may accompany a cause of stomach ache.

What causes stomach ache?

Indigestion is a common cause of stomach ache.

It may also be that you ate something that doesn’t sit well with you. You may have a food intolerance of allergy to something you eat.

You might be suffering from a stomach virus or bacteria. Parasites can also cause stomach pains, but they are normally not very common.

Additional causes of stomach ache are pelvic inflammatory disease and kidney stones. [1]


Fatigue is a feeling of immense tiredness. It may occur along with shortness of breath and dizziness.

What causes fatigue?

It may just be that you aren’t resting well. Or that your diet doesn’t include necessary nutrients that give you energy. Or you aren’t drinking enough water.

Many illnesses cause fatigue as a symptom. These include anemia, arthritis, fibromyalgia, and hyperthyroidism/hypothyroidism.


Dizziness means feeling light-headed and weak, like you’re about to faint. You may even lose your balance.

Dizziness can be dangerous because you’ll hurt yourself if you fall. If you start to get dizzy, have a seat and ask someone for help.

What causes dizziness?

A sudden drop in blood pressure or blood volume can make you feel dizzy. You may also be suffering from hypoglycemia, or low blood sugar. [2]

There are also numerous conditions, like motion sickness and heat stroke, that lead to dizziness.

The 3 Day Military Diet reviews only rarely mention side effects. Ask your doctor about how using this product can affect your health.

3 Day Diet Ingredients and Supplement Facts

Serving Size:
Serving Per Container:
Amount per Serving % DV

Other Ingredients: None

We really researched the 3 Day Diet ingredients so we could provide you with the important details.


To start, tuna is a lean fish that is readily available in cans. This meat is rich in protein, antioxidants, selenium, potassium, iron, omega-3 fatty acids, phosphorus and magnesium. It also provides niacin, riboflavin and B vitamins.

What is it Supposed to Do?

Tuna can be consumed as a lean source of protein, since it’s low in calories. It should help you stay full and boost energy levels. Furthermore, it helps build and repair muscles. This fish is also claimed to aid with weight reduction by reducing overall calorie intake. [1]

Clinical Research

According to the University of Maryland Medical Center, “Research shows that omega-3 fatty acids reduce inflammation and may help lower risk of chronic diseases such as heart disease, cancer, and arthritis.” However, this fish does not appear to be directly tied to weight-loss.

Clinical testing is very important when it comes to finding the right diet formula. One weight-loss product that you may want to take a closer look at is Leptigen. It actually contains ingredients that have been well researched.

Saltine Crackers

Also known as the soda cracker, saltines are made from yeast, white flour, baking soda and salt. They have been around for more than a century, and are commonly sold in grocery stores and supermarkets.

What is it Supposed to Do?

Saltine crackers are low in calories and fat. A serving is about five crackers, which contains around 70 calories, 1.5 grams of fat, no cholesterol, and 12 grams of carbohydrates. Therefore this is a food that can be eaten regularly without causing any serious weight gain. The purpose of saltines is to help stave off hunger so you eat fewer calories.

Clinical Research

While some studies have shown that saltine crackers can help reduce nausea, there is no direct correlation between these crackers and weight-loss. The high level of starch in this food aids the stomach by reducing acid levels. This in turn calms the stomach.


Since 65 percent of the human body is water, it’s only natural that you should drink 64 ounces a day. You may not know it, but water reduces fatigue, helps with physical performance, relieves constipation, and helps prevent headaches. [2]

What is it Supposed to Do?

Water is often recommended for weight-loss purposes. This is because it reduces appetite, increases energy levels and boosts metabolism. It’s typically coupled with healthy eating and regular exercise for optimum results.

Clinical Research

Some research has shown that water does increase calorie burning. For example, “Michael Boschmann, MD, and colleagues from Berlin’s Franz-Volhard Clinical Research Center tracked energy expenditures among seven men and seven women who were healthy and not overweight. After drinking approximately 17 ounces of water, the subjects’ metabolic rates — or the rate at which calories are burned — increased by 30% for both men and women. The increases occurred within 10 minutes of water consumption and reached a maximum after about 30 to 40 minutes.”

Is There Anything Out There That We Think TRULY Works?

After researching dozens of diet supplements, we were able to pinpoint one product. Leptigen, which is formulated with clinically tested ingredients, may be a good option to consider. All customers can take advantage of a Special Trial Offer, that’s available. Click here to give it a try today.

Get Your Sample Today »
Dietspotlight Author
About the Author:

Summer Banks, a content strategist at Leptigen, has researched over 5000 products in the past 10 years. She has years of nursing training, experience as a manager responsible for 15 supplement brands, and completed coursework on Food and Nutrition from Stanford University. full bio.

Rating: 3.4. From 201 votes.
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User Comments

261 Comments on "3 Day Diet Review"


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Rachel Faucett

It’s actually more than 500 calories.. The days range from about 1200 to 1400 calories


lot of the people don’t realize that you’re supposed to stay on low sodium, lean diet for the following 6 days to minimize the weight gain. You must follow through the 6 day diet after the 3-day apple detox… if not there really was no use in doing the 3 day fasting if you go back to eating whatever you want. Make yourself a lean salad with baby carrots and use balsamic vinegar as a dressing, snack on boiled eggs and unsweetened oatmeal as a hearty breakfast. These are just some good examples of meals that fit into the category.

Denese Eldred

Awesome post. I am a regular visitor of your site and appreciate you taking the time to maintain the excellent site. I will be a frequent visitor for a long time.

Clarine Alo

3 Week diet Learn the secret to losing 23 pounds of fat in 3 weeks


My last relationship I gained so much weight I’m at my heaviest I’ve ever been. Stress and eating out of boredom got the best of me. I’m 5’10 and weigh 200 lbs and I used to be 145 when I was a junior in high school. I had enough of looking at myself everyday and needed to do something. Currently on Day 2 of the diet. I must say, I never would’ve thought I’d make it past the first day..I’m not a fan of tuna but I substitute with chicken or shrimp and I make sure to measure my portions. Whenever I do feel hungry, I drink water or black coffee to curve it. I did experience a headache after the first day but my body was so used to sugar and processed food so I was expecting that. I haven’t had pop for 10 days now and started working out. I run at least 1-2 miles (I used to run 5 daily) hopefully I see results!


I discovered something interesting on this diet, and that is , that I was not hungry, I even felt like I was eating way better and more structured than before , it can of helped me to get de attach from food, in a way i didn’t have to think much about what i was going to eat or eat just because i was bored, on the other hand I just lost 2 lbs, which it is kind of strange, I wonder if it is because maybe before the diet my calorie intake wasnt too far from the diet? , I am fairly small man 5ft 5 in and my weight before the diet was 155 lb, in conclusion I lost 2 lb and 1% body fat. what do you think..? any insight?


Rubbish! I stuck rigidly to everything on the diet and didn’t lose one single pound. The only thing I did lose was the ability to stay awake!! I can’t do any exercise at the moment due to suffering lower back pain, but it said not doing any exercise wouldn’t matter. Totally disheartenedsad


Hi have done this diet many times before. I have never regained. A tip I would like to share is continue doing the 3 day diet. Start over on the 4th day. While on the diet though eat all the fruits ad veggie you want. Inceease the fiod portions. If it say 1 egg, eat 2 in stead. Plus this diet helps me stay away from junk food and other processed fiid.

Your Name

That is exactly what I have done- doubled the food portions on this diet. I am getting about 1200 calories a day for 3 (lost 4 pds) and last week for the other 4 days, my calories were 1795, 1935, 1856, 2085. I restarted this Friday and weighed- I did not gain any weight on those 4 days. I ate healthy foods and exercised – 5 days with the 6th day, an active rest day.

My name here

I stated doing this diet on and off for two years now. Immediate results. One hurtle I had was the head aches. I learned it was detox from no coffee. So I just kept coffee in the diet and still lose weight.

Annette Rosendahl

It’s truly a nice and helpful piece of information. I am satisfied that you just shared this helpful information with us. Please keep us up to date like this. Thank you for sharing.


How much does this diet cost when buying food?

Hi! For more information on pricing and where to purchase this product, please refer to the 3 Day Diet official website.


I did the diet for 3 days and lost 6 kgs but after constantly doing it with no break my weight has stayed the same… What am I doing wrong?

Hello. All users are different and can experience different weight-loss results, but exercise in conjunction with a healthy diet and supplements have shown to help with weight-loss.You might need to implement a different type of workout routine to help with your results.

Your Name

its my first time doing this diet and today is day 4 i weighed in and only lost 3 lbs is this even normal? ive seen so many people talk about their great results sad

Hello. All users are different and can experience different weight-loss results, but exercise in conjunction with a healthy diet and supplements have shown to help with weight-loss.


I have been doing this diet for about three weeks with a day or two rest period. And I have lost 12lbs so far. But I’m also an avid runner and just recently joined the gym. The diet is not long term unless you combined it with excersise and don’t overdue your calorie intakes on the rest periods.


I’m doing a variation of this diet. I’m doing the 7 day chemical diet. You can lose a stone in a week,

I’ve been eating as much fruit and veg as I was, and having a salad with a piece of learn meat for dinner, plus two boiled eggs as snacks.

I’ve lost 4lbs in 2 days.

Will stick to it for a week as the doctor wants to weigh me on Monday (not weight related, just coz I’m having treatment soon)

Your Name

I have just started chemical diet lost 1 pound in a day been struggling on slimming world I feel so much better today just need bit of support


I want to do this diet to the point where I lose at least 20 pounds before school starts in early August. From what I hear, it works but I need to know after you lose the weight does it stay off? Or will it come back with extra fat too??

Cameron (Editor)

The diet is claimed to give one the tools and know-how to maintain his/her desired weight once the diet is complete. Most importantly not returning to old dietary habits.


are diet drinks and coffee allowed freely during the 3 day plan ?

Cameron (Editor)

No mostly, it prohibits the added sugar and caffeine. What kind of diet drink are you thinking of adding – a meal replacement?


I just finished 3 days diet and didn’t lost nothing I am so disappointed . I will do it again

Your Namelinda Frazier

Its hard but I have loss weight


I’m considering starting this diet, but I was wondering what the affect would be if I kept the diet going and didn’t take a four day break?

Stephen (Editor)

Essentially you’d just form a new, habitual, healthier diet. The diet is recommended to be followed continuously. If you do not take a four day break you’d likely see little difference from the first 3 days; it claims that is when the most weight is lost. Let us know how you like it, Rachelle.


Hi, this’s my 4 week with the diet, so in 3 weeks I only loss 12 pounds but I guess is because I’m over 30 years, the 4 days off I eat healthy and I walk 3 times at week, I’m happy because is actually the only way I have lost some weight, my only concern is that I start having pain around my waist, I think is my kidneys, I weigh 162 pounds and I’m 5.3 so I’m not over weight also I’m active and drink lots of water so can anybody can tell me if is because the diet??

Stephen (Editor)

There doesn’t seem to be any conflict with this product and kidneys, nor have dieters reported such conflicts as a result of this diet. We recommend you visit your doctor for assurance.