What these tools do
Weight gain ai, as this page treats it, is two different jobs sharing a search term. One group is visual: chonk.me takes an uploaded photo, applies a chosen body mode and returns an animated meme, which is a playful body transformation image rather than a health tool. The other group is practical nutrition planning: Prospre and NutriAdmin generate meal plans built around macro targets, with grocery lists and weekly structure. None of these tools diagnoses anything or prescribes a surplus. They replace the spreadsheet, the notes app and the manual math that people otherwise use to plan meals or make a joke image for a group chat. The nutrition side is for people who want a repeatable eating plan and for dietitians, nutritionists and coaches who build plans for clients.
How to choose one
Start with the job you actually need done. If you want an image for fun, a photo to animated meme tool is the whole category you need, and macro features are irrelevant. If you are planning eating to support a higher body weight, look at whether the tool works in macros or in meals, because macro-first tools ask you to set targets yourself while meal-planning tools hand you a week of food. Check platform coverage: a web app is fine at a desk, but weekly meal planning usually happens on a phone, so iOS and Android support matters. Consider whether you plan for yourself or for clients, since client-facing tools carry admin features and a price to match. Finally, check whether a grocery list is included, because a plan you cannot shop for is a plan you will not follow.
Notable tools
chonk.me
chonk.me uploads a photo, lets you pick a body mode and returns an animated meme. It is a visual and social tool, useful for a lighthearted before-and-after image rather than for nutrition planning. Freemium, web app only.
Prospre
Prospre is macro driven meal planning that builds your week and your grocery list, so targets you set turn into meals and a shopping list. Freemium, available as a web app and on iOS and Android, which suits people planning for themselves on a phone. It is the most direct fit for the weight gain search on this page.
NutriAdmin
NutriAdmin is a macro-driven meal plan generator aimed at dietitians, nutritionists and coaches rather than at individuals. It suits a practitioner building plans for several clients. Paid with a free trial, web app only.
Common questions
What is weight gain AI?
The phrase covers two unrelated things: photo tools that animate an uploaded picture into a meme with a chosen body mode, and nutrition tools that build meal plans around macro targets. Neither is a medical service. If your goal is planning meals for a higher body weight, the nutrition tools are the relevant half.
Can a meal planner help with weight gain?
A macro-driven planner helps by turning a target into a week of meals and a grocery list, which is the part most people struggle to sustain. You still set the target, and a planner will not tell you whether that target is right for you. Prospre and NutriAdmin both work this way.
Which tool should I try first?
For a personal plan with a phone app and a grocery list, start with Prospre. For client work, NutriAdmin is built for practitioners. If you only want a fun animated image, chonk.me is the simplest option and needs no planning at all.
When to look elsewhere
If your goal is the reverse, the Weight Loss Preview category covers tools that project a lower weight rather than plan a surplus. For general body measurement without a gain or loss goal, the Body Analyzer category is the closer fit.
