FluidMacros
Paste any recipe
We'll auto-import the title, ingredients, steps and nutrition. If you enter these details by hand, we can auto-calculate the macros using a USDA-verified food database.
Now in private beta
Your macros,
Your macros,
your way.
FluidMacros helps adapt your meals without sacrifice.
You're on the list.
We'll be in touch. In the meantime — let's eat something worth waking up for.
How it works
Go from link to lunch, instantly.
Smart swaps
With just one tap, we'll suggest ingredient substitutions and ratios that get you as close as possible to your per-meal macro targets. These are filtered to your diet and allergens.
Dial in the amount
Adjust the swap ratios and watch the macros recompute live as you go.
Chef's notes
Click into suggestions to evaluate the texture & taste tradeoffs for each change.
Honest tradeoffs
When a recipe just can't hit every macro at once, you choose what to re-prioritize.
Your cookbook
Save recipes to build a bank of custom meals you love.
"This gave me back 5 hours each week from time spent meal planning."
On the road
Eating out, still on track.
Your day, wherever you are
Tap "Use my location" and we'll plan breakfast, lunch and dinner around what's actually nearby.
Orders built to fit
We put together a full order that gets as close as possible to your per-meal macro targets.
Your diet & allergens, respected
Orders are filtered to your preferences, and we flag it when a menu doesn't list allergens.
Room for a treat?
If dessert still fits your meal, we'll tell you.
"I'm finally eating food that keeps me on track when I'm traveling for work."
What's Cookin'
Soon, you can also expect:
Tailor-Made Meal Plans
Create daily / weekly meal plans, or let us recommend combinations from your saved recipes.
Family Features
Add family members with different macro goals, and optimize a single recipe that works for everyone.
FAQ
Questions, answered.
What is FluidMacros?
FluidMacros is a macro app that fits food to your life instead of the other way around. Paste any recipe and get simple ingredient swaps that move it toward your protein, carb, fat and calorie targets. When you're eating out, it finds orders at nearby restaurants that fit your macros.
Why wouldn't I just use ChatGPT or Claude for this?
General chatbots are great for ideas, but they don't have the data behind good macro math:
- Real restaurant data. We use thousands of menu items with published nutrition and 50,000+ real U.S. restaurant locations, so you get actual orders at actual spots near you, with distance and directions.
- Ingredient-level math, not estimates. Every recipe is calculated line by line from USDA FoodData Central, accounting for cooked vs. raw weights and how much frying oil actually gets absorbed.
- Swaps that keep the dish what it is. We've tested our swap engine on real recipes, so tiramisu keeps its mascarpone, your mac and cheese still tastes like mac and cheese, and your quiche isn't entirely egg whites. Please email us if you ever discover a swap you didn't like.
- It remembers you. Set your targets, diet and allergens once and every recipe and order respects them.
- Same answer every time. Ask a chatbot twice and you can get two different macro counts. Ours are consistent, and you can adjust swap amounts live and watch the numbers update.
- It all lives in one place. Save recipes to your cookbook, log meals and orders in a tap, and scan barcodes.
How do I hit my macros when eating out?
Turn on your location and FluidMacros plans breakfast, lunch and dinner around what's actually nearby. It builds full orders, including sides, drinks and protein add-ons, that get as close as possible to each meal's targets.
Can I make my favorite recipes higher protein or lower calorie?
Yes, that's the core of the app. Paste a link or type a recipe and we suggest swaps like Greek yogurt for sour cream or a leaner cut of meat. Each swap comes with chef's notes on how it changes taste and texture, so you choose what's worth it.
How accurate are the macros?
Recipes are calculated from USDA FoodData Central. Restaurant numbers come from each chain's published nutrition, and barcodes come from Open Food Facts. Portions and menus vary, and you can report anything that looks off.
Does it work for vegan, keto, gluten-free or food allergies?
Yes. Choose from vegetarian, vegan, gluten-free, dairy-free, keto and paleo, plus allergens like dairy, gluten, nuts, soy, eggs, fish, shellfish and sesame. Swaps and restaurant orders are filtered to match, and we flag it when a menu doesn't list allergen info. Always double-check with the restaurant if an allergy is serious.
Which restaurants are included?
Popular U.S. chains like Starbucks, CAVA, Sweetgreen, Chick-fil-A, Panera and more. New menus are added daily. If you run a local restaurant, contact us to be added.
Is FluidMacros free, and when can I get it?
FluidMacros is in private beta. Join the waitlist to get early access. The app is currently free.
Is FluidMacros medical or dietary advice?
No. Macro estimates are for informational purposes, and FluidMacros isn't a substitute for a doctor or registered dietitian.
Let's eat something
worth waking up for.
That's enough planning. Let's eat.
You're on the list.
We'll be in touch. Good things take thyme — yours is nearly ready.