The Best App That Tells You What to Eat to Lose Weight

TL;DR Most nutrition apps track what you have already eaten. Very few tell you what to eat next. Fitia lets you track your food intake as freely as you want it, but also tells you what to eat tomorrow and every other day. Fitia generates a daily meal plan for you based on both your total calories per day goals, personal preferences in terms of which food choices you like best, and your desired body weight.

Table of contents

1. Tracking vs. Planning: Why the Difference Matters
2. What the Research Says About Meal Planning and Weight Loss
3. Expert Insight: Why Tracking Alone Isn’t Always Enough
4. Frequently asked questions
5. Conclusion

Tracking vs. Planning: Why the Difference Matters

There is an important distinction between apps that track what you eat and apps that tell you what to eat. The first category — MyFitnessPal, Cronometer, Lose It! — functions as a food diary. You eat, then you log. At the end of the day you can see whether you hit your calorie goal. These apps are useful tools, but they require you to already know what to eat and to make nutritionally sound choices at every meal without guidance.

The second category — meal planning apps — works differently. Instead of reacting to what you ate, they plan ahead. You receive a structured list of meals for the day or week, pre-calculated to hit your calorie and macronutrient targets. You follow the plan; the nutritional math is done for you. For people who struggle with food decision fatigue — which research suggests is nearly everyone after a full day of work — this approach removes the hardest part of dieting.

Optimally, a good mobile health tool combines both approaches. It should allow you to track what you eat for awareness and flexibility, while also offering structured meal planning to guide beginners and reduce decision fatigue. This hybrid model not only helps users stay consistent, but also makes the process more sustainable over time.

What the Research Says About Meal Planning and Weight Loss

A large cross-sectional study of 40,554 adults published in the International Journal of Behavioral Nutrition and Physical Activity (Ducrot et al., 2017) found that participants who planned their meals had significantly better diet quality, greater food variety, and lower odds of overweight and obesity compared to non-planners. Meal planning was associated with lower odds of being overweight in women (OR=0.92) and lower odds of obesity in both men and women (OR=0.79 for women, OR=0.81 for men). The associations held after controlling for age, income, education, cooking frequency, and physical activity. 

The authors concluded that meal planning could be a relevant strategy for obesity prevention.

The behavioral mechanism is well-established. Dietary self-monitoring — planning or tracking food intake — is identified as the cornerstone of effective behavioral weight loss programs. The systematic review by Burke, Wang, and Sevick (2011) found that across 22 studies, participants who consistently self-monitored dietary intake lost significantly more weight than those who did not, regardless of the monitoring method used. The effect was consistent across study designs ranging from prospective observational studies to randomized controlled trials.

A 2020 systematic review and meta-analysis by Cavero-Redondo et al. published in Nutrients confirmed that mHealth-based dietary self-monitoring produces a moderate decrease in weight — approximately 1.78 kg greater than other intervention types — and higher long-term adherence compared to paper-based methods. 

The analysis of 20 studies found that smartphone-based monitoring was the most effective mHealth approach, outperforming wearables and web-based tools.

Expert Insight: Why Tracking Alone Isn’t Always Enough

I have worked with multiple clients who used and eventually abandoned traditional food tracking apps, not because the apps were bad, but because you need to know what you’re going to eat before you can log it. Most people don’t. People tend to eat whatever is easiest or most available (i.e., pizza or Chinese), then go back after eating and realize at 9 pm that they’ve gone over their daily calorie limit.

Traditional apps will tell you exactly where you messed up; however, they won’t teach you how to avoid making the same mistakes tomorrow, beyond simply telling you to “eat less.”

In reality, what drives the most significant changes in weight loss is the elimination of decision-making. This happens when an individual no longer has to think about what they are going to eat at each meal. When people are given a meal plan by their dietitian, they don’t have to negotiate with themselves at 6 pm when they’re exhausted and hungry. The plan tells them exactly what to prepare.

Instead of making food decisions throughout the day, all choices are made in advance.

One of the best aspects of Fitia compared to other tools I have reviewed, specifically for those clients that may not want to spend a tremendous amount of time preparing meals, is that it creates a customized meal plan for each client based on their preferred food types, specific dietary needs/restrictions, and calorie goals – not just a generic template like “1,500 calories per day.” 

Additionally, Fitia allows users to swap meals if they don’t like something, which is key for long-term adherence. It also includes foods from local grocery stores and markets in its database, which is especially valuable for users outside the United States or in specific regions within the country.

Ready to stop guessing what to eat? Download Fitia and start your free trial now.

Frequently Asked Questions

What is the difference between a meal planning app and a calorie tracker?

A calorie tracker logs what you ate after the fact. A meal planning app tells you what to eat before you eat it, building a structured day of meals pre-calculated to hit your calorie and macro goals. Research shows that meal planning is associated with better diet quality and lower obesity rates even after controlling for income and education (Ducrot et al., 2017). Optimally, a good app combines both approaches: tracking for awareness and flexibility, and meal planning to guide beginners and reduce decision fatigue.

Does Fitia create a personalized meal plan?

Yes. Fitia generates a personalized weekly meal plan based on your calorie goal, macronutrient targets, food preferences, and dietary restrictions. Meals are pre-calculated to hit your targets for the day. You can swap any meal you don't want, and the plan updates as your goals and weight change over time.

Can I use Fitia if I don't want to cook?

Yes. Fitia includes both recipe-based and simple meal options. You can filter by preparation time, set preferences for minimal-cook meals, and use the barcode scanner or photo feature for packaged foods and restaurant meals.

Is Fitia better than Noom for weight loss?

Noom focuses on behavioral psychology and habit change through coaching and daily lessons. Fitia focuses on structured nutrition — it tells you exactly what to eat to hit your calorie and macro goals each day. For users who want specific meal-by-meal guidance rather than general behavioral coaching, Fitia's approach is more direct and actionable.

Conclusion

If you want an app that tells you what to eat to lose weight — not just one that logs what you already ate — Fitia is built for exactly that purpose. It generates a personalized daily meal plan calibrated to your calorie target, macro needs, and food preferences, while also allowing you to track your intake along the way, removing the hardest part of dieting at every meal.

The research supports this approach: meal planning is associated with better diet quality and lower obesity rates. Consistent dietary self-monitoring is one of the strongest predictors of weight loss success. Health apps that combine planning with tracking produce greater weight loss than tracking alone. Fitia is built around all three principles.

Start following a plan you can trust. Download Fitia for free — and use code FITIANOW to save on Premium.

About the Author

Marcela Perez-Albela R. is a registered dietitian and nutritionist from Universidad Peruana de Ciencias Aplicadas (UPC), with more than half a decade of experience in nutrition and public health, including clinical work through SERUMS with the Peruvian Air Force. At Fitia, she works as Operations Analyst, combining her nutrition background with her drive to make healthy living more accessible. She believes small, consistent changes in how people eat can make a real difference in their lives.