Upload your bloodwork once. Retain analyzes your biology, builds your weekly meal plan, orders groceries, and sends daily guidance — all without you tracking a single calorie.
What Retain does
Retain is not a tracker. It's an autonomous agent that handles your nutrition start-to-finish — no daily input, no logging, no decision fatigue.
Upload your lab PDF once. Retain extracts ferritin, B12, vitamin D, glucose, HbA1c, cholesterol, and 6 more markers — comparing each to clinical reference ranges and building your nutrition plan around the results.
Every Sunday at 8am, Retain generates your 7-day meal plan — 3 meals + 2 snacks per day — based on your labs, goals, allergies, and budget. No input required from you.
Your weekly grocery list is built automatically from your meal plan and placed via Instacart. You get a single SMS when it's done. Open the door, the food is there.
Each morning at 7am, you get a personalized SMS with today's meals and timing. If you reported low energy yesterday, today's plan is already adjusted.
Send a photo of a restaurant menu, ask about a supplement, or describe a symptom. The AI advisor pulls your full health context — labs, current plan, recent check-ins — to give you a grounded answer.
Retain watches your weekly check-ins for declining energy, low adherence, and worsening lab trends. When it spots a pattern, it adjusts next week's plan and alerts you via SMS before you even notice.
How it works
Drop in your lab PDF. Retain reads 12+ biomarkers and flags what needs nutritional attention.
Tell Retain your health goals, allergies, dietary preferences, and weekly grocery budget.
Every Sunday, a full week's meal plan is generated and groceries are ordered. You don't do anything.
Rate your energy and adherence daily. Retain continuously refines your plan based on real feedback.
Everything included
No subscription tiers. No feature gates. Everything Retain can do is available from the moment you sign up.
Start for freeReady?
Upload your bloodwork, tell us your goals, and let Retain handle everything from there. No credit card required.