For portion control, Factor is the most practical meal delivery service for most people, because its prepared meals arrive cooked, single-serve and labeled with calories and macros, and its Calorie Smart filter narrows the menu to lighter options. BistroMD is the better fit if you want a structured program built around set meal plans, Trifecta suits people who already track macros closely, and Nutrisystem remains the lowest-effort packaged option. None of them guarantees weight loss, and none should replace advice from a clinician who knows your history.
We compared these services on published menus, nutrition labeling, plan structure and pricing, and read independent reviews and owner reports. We did not follow any plan ourselves and we are not reporting weight changes, because those depend on far more than a box of meals. Prices below come from third-party listings that disagree with each other, so verify current pricing on each company's site.
Portion-controlled meal delivery compared
| Service | Best for | Approximate price per meal (verify current pricing) | What helps with portions |
|---|---|---|---|
| Factor | Most people | About $11 to $14, plus shipping | Single-serve meals, calorie and macro labels, Calorie Smart filter |
| BistroMD | Structured programs | About $9 to $13, plus shipping reported near $20 | Preset daily plans designed with dietitian input |
| Trifecta | Macro trackers | About $14 to $16, plus shipping | Detailed macros, a la carte proteins and sides |
| Nutrisystem | Lowest effort | About $9 to $12 | Packaged meals and snacks for the whole day |
| CookUnity | Variety | Around $10 to $12 | Chef meals with nutrition shown per dish |
Why Factor is our top pick for portion control
Factor delivers fully cooked meals that you reheat in about two to three minutes, according to the company. Each meal is a single serving with a nutrition panel, which removes the hardest part of portion control at home: deciding how much to serve and estimating what is in it. The menu can be filtered by preference, including Calorie Smart, which the company describes as meals under roughly 550 calories, as well as keto and protein-focused options.
Third-party listings put Factor at about $11 to $14 per meal depending on how many meals you order each week, plus a shipping fee of around $11. That is more than cooking yourself, but it is often less than takeout. The main drawbacks are packaging volume and a menu that some reviewers find repetitive over months. Our Factor review covers the plans and cancellation steps in detail.
BistroMD offers the most structure
BistroMD was founded by a physician and builds its programs around full days of meals rather than single dishes, with menus the company says are designed with dietitian input. It offers several program types, including options aimed at specific needs, so if you like being told what to eat for breakfast, lunch and dinner, it removes most of the decisions. That structure is the main reason to choose it.
Independent reviews put meals at roughly $9 to $13 each, but a weekly shipping fee reported at about $20 adds noticeably to the total, so compare full-week pricing rather than the per-meal headline. Some reviewers find the meals smaller than they expected, which is partly the point of a portion-controlled plan but worth knowing if you are very active.
Trifecta is built for people who already count macros
Trifecta publishes detailed macros for each meal and sells a la carte proteins, grains and vegetables in measured portions, which suits people who log food in an app and want precise numbers. It offers clean, keto, paleo and plant-based style menus. It is one of the pricier services here, with sources placing it near $14 to $16 per meal before shipping, and the food is plainer than chef-driven services. Our Trifecta review goes deeper on the menus.
If you track your intake, our guides to macros, calorie needs and protein needs explain what the numbers on these labels mean. They explain general ranges only; your own targets should come from a clinician or registered dietitian.
Nutrisystem and CookUnity cover the two extremes
Nutrisystem is the classic packaged program: shelf-stable and frozen meals and snacks across the whole day, with little cooking or planning. Third-party listings put it at roughly $9 to $12 per meal. It is convenient, but the food is heavily packaged and processed, and some people find it hard to transition back to regular eating afterward.
CookUnity sits at the other end, with a large rotating menu of chef-made meals and nutrition information shown per dish, at around $10 to $12 a meal according to third-party sources. It is not built as a weight program, so you have to choose lighter meals yourself, but the variety can help people who get bored on repetitive plans. See our CookUnity review for more.
Pairing meals with an app or coaching
Meals handle portions, but not habits. Some people combine prepared meals with a behavior-focused app such as Noom, which focuses on psychology-based lessons and food logging. Our Noom review explains what the program does and does not include. A tracking app such as Cronometer or MyFitnessPal can also log prepared meals quickly because the nutrition panel is printed on each package. Treat the app as a tool for noticing patterns, not as a source of medical targets.
What to read on a prepared meal label
A calorie number on the lid is only part of the story. Check protein, because meals that are low in calories and low in protein can leave people hungry soon after eating. Check fiber, which comes mainly from vegetables, beans and whole grains and contributes to fullness. Check sodium, because prepared meals often run higher in salt than home cooking, and the federal Dietary Guidelines for Americans advise most adults to limit sodium to under 2,300 milligrams a day. If you have high blood pressure or kidney disease, your clinician may set a different target.
Also look at serving size. Most prepared meals are a single serving, but some sides and a la carte items list nutrition per portion while the container holds more than one. Our guide to reading nutrition labels walks through each line. Finally, compare the meal against what you would otherwise eat. A delivered meal that replaces a large takeout order may be a reasonable swap, while one added on top of regular snacking changes little.
How we compared these services
We weighed each service on four points. Labeling came first: whether every meal shows calories, protein, carbohydrates and fat. Second, menu filters that make lighter choices easy. Third, the true weekly cost including shipping, since fees can change the ranking. Fourth, flexibility: skipping weeks, pausing and cancelling online. We used each company's published information and independent pricing reports, and we did not measure portions or nutrition ourselves.
Safety notes before you change how you eat
Weight management is medical territory for many people, and a meal plan is not a substitute for care. Talk to your doctor or a registered dietitian before starting a calorie-restricted plan, and always if you are pregnant or breastfeeding, have diabetes, kidney disease or heart disease, or take medication. This matters especially if you use a GLP-1 medication such as semaglutide or tirzepatide, or medications that lower blood sugar, because changing how much you eat can change how those drugs affect you, and your prescriber may want to adjust the plan.
If you have a history of disordered eating, calorie-focused programs and precise tracking can be harmful, so speak with a clinician first. And remember that a prepared meal labeled with a calorie count is not automatically the right amount for you. Needs vary widely with age, size, activity and health.
The bottom line: choose Factor for flexible single-serve portions with clear labels, BistroMD if you want a structured program, and talk to your doctor before any plan if you take medication or have a health condition.
