s8d

("sated")

One smoothie.
Every nutrient.

A science-backed solver that computes exactly what to blend for complete daily nutrition.

0+USDA foods
0nutrients tracked
0science-backed presets

How it works

1
Tell us about you
Sex, age, weight, height, activity level, and dietary restrictions. Takes 30 seconds.
2
Pick a goal
Maintain, lose, build muscle, heart health, longevity — in plain language. We handle the science.
3
Get your daily smoothie
Our solver computes the exact grams of each ingredient so your smoothie hits every target — protein, carbs, fat, fiber, and 28 vitamins & minerals.
4
Blend. Drink. Done.
Split into 2-3 servings throughout the day. One recipe, 70-90% of your nutrition. No meal prep. No counting.

Why S8D

Not a food logger
We don't ask what you ate — we tell you what to eat. You follow the plan. We do the math.
Science-backed
Every number traces to the NIH, IOM, or a named clinical study. Sources are one tap away, always.
Honest about gaps
If your pool can't hit a nutrient, we say so and tell you what to add — including when a multivitamin is the right answer.
Gets smarter every day
Don't like kale? Tap to remove — the app remembers and re-solves instantly. Your plan adapts to you.
Privacy-first
Your dietary data is stored securely with row-level access control. We never share it. We never sell it.

Every plan is computed fresh for your body, your goals, and your food preferences. Here's what happens when you tap "Generate":

1
Calculates your energy needs

Using the Mifflin-St Jeor equation — the gold standard for metabolic rate — combined with your age, sex, weight, height, and activity level. Adjusted for your goal (maintain, lose, or gain).

Mifflin et al. 1990, Am J Clin Nutr

2
Sets 28+ nutrient targets

Every vitamin and mineral has a floor (RDA) and a ceiling (UL) customized for your sex and age. These come directly from the NIH Office of Dietary Supplements — the same data your doctor uses.

NIH ODS Fact Sheets; IOM DRI 2005/2011

3
Searches 6,600+ real foods

Food composition data comes from USDA FoodData Central — the US government's most comprehensive food database. Every nutrient value is lab-measured, not estimated.

USDA FoodData Central (Foundation + SR Legacy)

4
Solves with mathematical optimization

A real constrained optimizer finds the combination of ingredients that hits every nutrient target simultaneously — protein, carbs, fat, fiber, and 28 vitamins & minerals — while minimizing your shopping list. Not a template. Not a lookup table. Real math.

5
Prioritizes your smoothie

The solver puts as much nutrition as possible into a single blendable recipe. Fruits and greens for flavor and micronutrients, seeds for omega-3s, protein powder for the protein floor. Snacks fill the gaps. Cooked food is a last resort.

6
Checks nutrient balance

Beyond individual nutrients, the solver's output is analyzed for key ratios: calcium-to-magnesium, zinc-to-copper, potassium-to-sodium, omega-6-to-omega-3. These competitive-absorption relationships affect how well your body actually uses what you eat.

Rosanoff 2012; WHO 2012; Simopoulos 2002

The specific optimization techniques, constraint formulations, and weighting strategies are proprietary to S8D. The data sources and scientific references cited above are publicly available and independently verifiable.

Ready to get sated?

No credit card required. Start eating better today.