Best Diets for Weight Loss Fast

Best Diets for Weight Loss Fast: The 10 Top Rapid Weight Loss Diets

Best Diets for Weight Loss Fast: The 10 Top Rapid Weight Loss Diets

Looking to lose weight fast? Discover the top best diets for weight loss fast, including keto, intermittent fasting, Jenny Craig, and more. Proven plans for quick results.


Losing weight is a journey, and we could all use a dietitian-approved shortcut now and then. If you’re looking to shed pounds quickly in a safe, sustainable way, these are the best diets for weight loss fast according to experts.

Why Choose Rapid Weight Loss Diets?

While slow and steady weight loss is ultimately advised, there are times when a quick diet reset can jumpstart your goals and provide motivation. The best diets for weight loss fast allow for an initial rapid drop in pounds followed by a moderate, sustainable long-term plan.

Following a rapid weight loss diet can:

  • Provide a mental boost from quick results
  • Reset unhealthy habits and cravings
  • Help shrink your stomach to reduce portions
  • Establish a calorie deficit for fat loss

However, it’s crucial to manage expectations. Extreme deprivation or unsustainable plans can lead to rebound weight gain and even slow your metabolism in the long-term. The best diets for weight loss fast promote fat-burning while still providing essential nutrients.

Top 10 Best Diets for Weight Loss Fast

When it comes to the best diets for weight loss fast, not all plans are created equal. These expert-approved diets can help you lose weight quickly and safely:

  1. Keto Diet
  2. Intermittent Fasting
  3. Volumetrics Diet
  4. WW (Weight Watchers) Diet
  5. Vertical Diet
  6. Mediterranean Diet
  7. Paleo Diet
  8. Jenny Craig Diet
  9. Nutrisystem Diet
  10. Vegan Diet


  1. Keto Diet

Keto Diet

How it Works: The keto diet is a very low-carb, high-fat eating pattern that puts your body into fat-burning ketosis. With carbs restricted to 20-50 grams per day, your body’s main fuel source switches to fat for rapid weight loss.

Potential for Fast Weight Loss: Very High. Ketosis has been shown to suppress appetite and rapidly burn fat stores, leading to potential losses of 1-2 lbs. per week or more initially.

Drawbacks: Keto can cause side effects like keto flu, constipation, bad breath, and nutrient deficiencies if not properly balanced. It may not be suitable for the long term.

  1. Intermittent Fasting

Intermittent Fasting

How it Works: Intermittent fasting (IF) involves cycling between fasting periods and eating windows. Common schedules include 16:8 (fasting 16 hours per day), alternate-day fasting, or up to 24-hour fasts a few times per week.

Potential for Fast Weight Loss: High. I can create a substantial calorie deficit and has been shown to increase fat loss, especially in combination with healthy eating.

Drawbacks: IF may cause side effects like hunger, headaches, and fatigue initially. It requires diligence and isn’t suitable for some.

  1. Volumetrics Diet

 Volumetrics Diet

How it Works: The Volumetrics diet emphasizes low-calorie, high-volume foods high in water and fiber like fruits, veggies, soups and smoothies to promote fullness on fewer calories.

Potential for Fast Weight Loss: Moderate. By focusing on high-volume, nutrient-dense foods, it’s easier to create a calorie deficit for steady fat loss.

Drawbacks: Can lack protein and healthy fats if not balanced. Requires adjusting to larger portions of low-calorie foods.

  1. WW (Weight Watchers)

WW (Weight Watchers)

How it Works: WW assigns point values to foods based on calories, protein, fat, and carbs. You get a personalized daily points budget for weight loss balanced with satisfying foods.

Potential for Fast Weight Loss: Moderate. By tracking portions through points, most achieve a 500-1000 calorie daily deficit for 1-2 lb. weekly losses.

Drawbacks: Requires tracking/counting points, purchasing WW food. May not work for all personality types.

Diet Potential for Fast Weight Loss
Keto Very High
Intermittent Fasting High
Volumetrics Moderate
WW Moderate
  1. Vertical Diet

Vertical Diet

How it Works: The Vertical Diet revolves around simple but nutritious whole food sources like lean protein, veggies, fruits, healthy fats, and starches in proper portions.

Potential for Fast Weight Loss: High. By emphasizing protein and whole foods, it’s easy to create a calorie deficit while staying satisfied. Many report rapid initial results.

Drawbacks: Requires planning and prepping basic whole-food meals. May feel restrictive due to limited food variety.

  1. Mediterranean Diet

Mediterranean Diet

How it Works: The Mediterranean diet encourages healthy fats like olive oil and avocado, lean proteins, vegetables, fruits, legumes, nuts and whole grains.

Potential for Fast Weight Loss: Moderate. The balanced approach makes it easy to create a slight calorie deficit for steady, sustainable weight loss.

Drawbacks: Not designed for rapid loss, so may need to be tweaked to restrict portions or calories initially. Rich foods can make it harder to restrict calories.

  1. Paleo Diet

Paleo Diet

How it Works: The Paleo diet centers on whole, unprocessed foods like lean meats, seafood, eggs, veggies, fruits, seeds and healthy fats while avoiding grains, dairy and legumes.

Potential for Fast Loss: Moderate to High. Paleo’s clean eating approach eliminates processed foods and added sugars, creating a deficit for rapid loss.

Drawbacks: Eliminating grains and dairy can make it hard to meet nutrient needs. Difficult to sustain for more than a few weeks.

  1. Jenny Craig Diet

Jenny Craig Diet

How it Works: Jenny Craig is a portion-controlled meal delivery service specifically designed for weight loss. You’ll receive chef-made meals and snacks to create a calorie deficit.

Potential for Fast Loss: High. Most members lose 1-2 lbs. weekly with the structured, calorie-controlled menus delivered right to you.

Drawbacks: Pre-made foods get expensive and may not work well for picky eaters or families. Requires commitment to switch all meals.

  1. Nutrisystem Diet

Nutrisystem Diet

How it Works: Like Jenny Craig, Nutrisystem is a weight loss meal delivery service. You’ll eat their pre-packaged meals, snacks, and shakes to create a 1000-1500 calorie deficit.

Potential for Fast Loss: High. Studies show Nutrisystem members lost 3-5% of body weight after just 12 weeks thanks to the regimented low-calorie plan.

Drawbacks: The proprietary food can get monotonous and expensive long-term. Frozen meals may not appeal to some.

  1. Vegan Diet

Vegan Diet

How it Works: A vegan diet eliminates all animal products like meat, poultry, seafood, eggs and dairy while focusing on fruits, veggies, whole grains, legumes, nuts and seeds.

Potential for Fast Loss: Moderate. Plant-based diets are linked to lower BMIs and easier weight management thanks to the higher fiber and nutrient intake.

Drawbacks: Can lack certain nutrients like B12, iron, zinc, and omega-3s if not carefully planned. Requires eliminating all animal products.

Those are some of the best diets for weight loss fast that experts recommend for initial rapid weight loss results. However, lifestyle factors like adherence, food preferences

Those are some of the best diets for weight loss fast that experts recommend for initial rapid weight loss results. However, lifestyle factors like adherence, food preferences, and dietary needs should be considered when choosing the right plan for you.


Read AlsoBest Diets 2024: Discover the Ultimate Path to Wellness!

Choosing the Right Diet for You

With so many options for the best diets for weight loss fast, how do you decide which one to try? Consider these factors:

  • Weight Loss Goals: Are you looking to jumpstart weight loss, reset your habits, or lose a significant amount? More restrictive plans may be needed.
  • Food Preferences: Do you prefer premade meals, or would you rather cook whole foods yourself? Think about taste preferences too.
  • Lifestyle: How much time can you devote to diet prep and planning meals? Look for convenient options if you have a hectic schedule.
  • Dietary Needs: Any food allergies, intolerances or medical conditions like diabetes should inform your eating plan.
  • Sustainability: While rapid loss is the goal, you’ll need a long-term maintenance strategy. Make sure the habits are livable.

No matter which plans you choose, focus on developing healthy habits beyond just calorie counting. Things like meal prepping, portion control, and balanced nutrition will sustain weight loss.

Additional Tips for Success

To maximize results on one of the best diets for weight loss fast, implement these expert tips:

  • Stay hydrated by drinking plenty of fluids
  • Get quality sleep of 7-9 hours per night
  • Reduce stress through relaxing activities
  • Build muscle through strength training
  • Avoid excessive cardio or intense workouts
  • Take progress photos to stay motivated

With the right rapid weight loss diet coupled with healthy lifestyle habits, that head start toward your goals can quickly compound into major accomplishments.

Fast Weight Loss Cautions

While these rapid fat loss plans are considered safe under professional guidance, it’s still important to have realistic expectations and prioritize your health. A few cautions:

  • Lose no more than 1-2 lbs. per week beyond the first couple weeks to avoid muscle loss.
  • Don’t remain in an extreme calorie deficit for more than 12 weeks at a time.
  • Stay hydrated and supplement electrolytes if following a very low-carb approach.
  • Don’t push your body too hard with excessive exercise during rapid weight loss.
  • Be prepared to transition to a more moderate, sustainable calorie level.

Losing weight at an excessive, unsustainable rate can backfire by slowing your metabolism and making it harder to keep the weight off long-term. The best diets for weight loss fast allow for a healthy rate of loss.

FAQs: Best Diets for Weight Loss Fast

What is the best diet to lose weight quickly?

Some of the best diets for rapid weight loss are the keto diet, intermittent fasting, Jenny Craig, Nutrisystem and the Volumetrics diet. These create a calorie deficit through low-carb, fasting schedules, portion control or high-volume foods.

How to lose weight in 7 days?

To lose weight in just 7 days, you would need to create an extreme calorie deficit through a very low-calorie diet and fasting. However, losing more than 1-2 lbs. in a week is not recommended as it increases muscle loss. Focus on establishing a moderate 500-750 calorie daily deficit instead.

How can I lose 10 kgs in 2 weeks?

It is not safe or realistic to attempt to lose 10 kgs (22 lbs.) in just 2 weeks. A max of 4-6 lbs. of actual fat loss is possible during that timeframe. Losing more than 2 lbs. per week requires an unsustainable and unhealthy calorie deficit that will slow your metabolism in the long term.

How to lose 5kg in a week?

Losing 5kg (11 lbs.) in just one week would require an extreme 7000+ calorie daily deficit, which is neither safe nor sustainable. A max of 1-2 lbs. of actual fat loss per week is recommended to preserve lean muscle mass and keep your metabolism healthy.


While effective for the short term, the best diets for weight loss fast are intended to jumpstart your fat loss efforts, not remain in an extreme deficit indefinitely. To keep the weight off for good, you’ll need to establish a moderate, sustainable lifestyle focused on balanced nutrition.

If you need a reset or are struggling with a weight loss plateau, these top rapid fat loss plans can provide the kickstart you need. Just be sure to transition to reasonable, maintainable habits to keep the pounds from creeping back up.



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