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The Military Diet: A Guide to the 3-Day Diet Plan

Sep 26, 2025

Last Updated Nov 14, 2025

6 Min Read

Siti Amirah content writer for eato

Written by

Siti Amirah

Making the rounds on social media, the Military Diet claims to help you drop pounds in just three days. Despite its name, this plan has no official ties to the military. Instead, it’s a strict, low-calorie meal plan designed to help you lose a good amount of weight in a short period of time. But is the Military Diet really good for you?

Key Takeaways

  • Military diet is a strict, low-calorie 3-day meal plan designed for rapid weight loss, followed by 4 days of restricted calories under 1,500.
  • Meals include a fixed set of foods such as tuna, eggs, toast, hot dogs, and vanilla ice cream.
  • While substitutions are possible, the diet lacks balance and variety needed for long-term nutrition.
  • Following the Military Diet can lead to nutrient deficiencies, low energy, fatigue, loss of muscle mass, and increased risk of developing disordered eating patterns due to extreme calorie restriction and rigid food rules.

What Is The Military Diet?

what is the military diet illustration by eato
Credit: Canva

How Does The Military Diet Work?

If you intend to go on the military diet, you will be expected to follow through with it entirely for 3 days. During the 3 days, you are required to adhere to a strict, low-calorie diet in which you are to eat a fixed set of foods for breakfast, lunch, and dinner.

On the first day, you are allowed to consume up to 1,400 calories for the entire day. On Day 2, it will be reduced to 1,200 calories, and on the final day, your calorie intake should be no more than 1,100 calories. In case you start to feel hungry, you are allowed to consume an additional 100 calories in the form of protein.

After doing this diet for 3 days, you will then continue with your regular diet. But the condition is that you must keep your calories under 1,500 calories for the next 4 days.

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What Foods Can You Eat and What Foods to Avoid?

common foods in the Military Diet include tuna, eggs, bananas, toast, and coffee on orange background.
Credit: Canva

While on the diet, you will have to stick to eating a specific set of foods and drinks for each day. You’ll find that you have to stick to eating foods like a can of tuna, hard-boiled eggs, and cheese. You will also switch between toast and saltine crackers for different meal times.

Additionally, you are also allowed to switch between water, black coffee, or tea for hydration. If you have any food allergies or you need to substitute certain foods due to your diet (e.g., vegan, vegetarian, gluten-free, etc.), you are allowed to do so as long as it meets the dietary guidelines.

The eating schedule is outlined in the next section.

3-Day Military Diet Plan

Here’s an outline of what you will be eating for breakfast, lunch, and dinner over 3 days [2].

Day 1

  • Breakfast: half a grapefruit, 1 slice of toast, 2 tablespoons of peanut butter, and 1 cup of coffee or tea
  • Lunch: half a cup of canned tuna, 1 slice of toast, and 1 cup of coffee or tea
  • Dinner: 3 ounces of any meat, 1 cup of green beans, half a banana, 1 small apple, and 1 cup of vanilla ice cream

Day 2

  • Breakfast: 1 egg, 1 slice of toast, and half a banana
  • Lunch: 1 cup of cottage cheese, 1 hard-boiled egg, and 5 saltine crackers
  • Dinner: 2 hot dogs (without bun), 1 cup of broccoli, half a cup of carrots, half a banana, and half a cup of vanilla ice cream

Day 3

  • Breakfast: 5 saltine crackers, 1 slice of cheddar cheese, and 1 small apple
  • Lunch: 1 hard-boiled egg and 1 slice of toast
  • Dinner: 1 cup of tuna, half a banana, and 1 cup of vanilla ice cream

Pros of Doing the Military Diet

Doing this diet is associated with short-term weight loss due to a restriction of calorie intake. Restricting your calories puts you in a calorie deficit, resulting in temporary weight loss.

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Risks Associated with the Military Diet

Going on a military diet is associated with several health risks. Here are some of the potential health complications of following the diet [3]:

a) Nutrient deficiencies

First and foremost, there’s a lack of variety in foods. We need to eat a balanced diet that consists of a good amount of protein, carbs, and fiber. With this lack of variety, it may not provide enough nutrients for us to sustain and nourish our bodies.

b) Risk of disordered eating patterns

c) Low energy and fatigue

Bowl of hard boiled eggs with high protein meal option for the Military Diet plan.
Credit: Canva

Unsurprisingly, the fewer calories you eat, the fewer calories you have available to burn without feeling fatigue. In one randomized controlled trial that involved patients with metabolic syndrome, 2 days of calorie restriction were enough for them to experience fatigue and hunger, among other symptoms [4].

d) Loss of muscle mass

The Final Takeaway: Losing Weight Healthily

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Get accurate nutrition info and track progress by downloading Eato on App Store and Google Play.

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FAQ

References

[1] L. Fields, K. Mitchell, and R. R. Ellis, "The Military Diet," WebMD, 2014. https://www.webmd.com/diet/the-military-diet

 

[2] The Military Diet, Military Diet Plan, n.d. https://themilitarydiet.com/military-diet-plan/

 

[3] C. Barnett, "Military Diet: Health Risks," News-Medical, 2019. https://www.news-medical.net/health/Military-Diet-Health-Risks.aspx

 

[4] J. Zhang, Z. Wu, Y. Cai, B. Ke, Y. Huang, C. Qiu, Y. Yang, L. Shi, and J. Qin, "L-carnitine ameliorated fasting-induced fatigue, hunger, and metabolic abnormalities in patients with metabolic syndrome: A randomized controlled study," Nutrition Journal, vol. 13, no. 1, 2014. doi: 10.1186/1475-2891-13-110.

 

[5] J. Zibellini, R. V. Seimon, C. M. Lee, A. A. Gibson, M. S. Hsu, and A. Sainsbury, "Effect of diet-induced weight loss on muscle strength in adults with overweight or obesity: A systematic review and meta-analysis of clinical trials," Obesity Reviews, vol. 17, no. 8, pp. 647–663, 2016. doi: 10.1111/obr.12422.

Siti Amirah content writer for eato

Siti Amirah

Eato Content Writer

Amirah is a content writer passionate about topics related to health and wellness. Her growing interest in nutrition stems from a personal commitment to cultivating healthier eating habits and supporting her overall well-being. Amirah holds a Bachelor’s Degree in International Communication Studies from the University of Nottingham.

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