THRYVE · HYDRATION
On keto and feeling off?
Cutting carbs drops your insulin, and your kidneys start shedding extra sodium and water, that's the real reason the "keto flu" (headache, fatigue, cramps) hits early on. Answer a few honest questions and we'll turn it into a real daily water number, give you a straight read on whether electrolytes matter for you, and a food-first plan to replace them, no hype about needing a tub of powder.
Your estimated daily water target
Enter your weight to estimate it.
Do electrolytes matter for you?
Tell us about your day below.
About you & your day
A few honest inputs make this yours, not a generic rule of thumb.
1 · Here's what we found
2 · What to actually do (food first)
3 · Resources
Get the low-carb electrolyte cheat sheet
How much sodium, potassium, and magnesium low-carb typically needs, the whole foods that cover it, and how to tell the keto flu from real dehydration. No spam.
General educational estimate, not medical advice. A low-carb or keto diet isn't right for everyone, certain conditions (kidney, heart, high blood pressure) and medications change how much sodium and fluid are appropriate, and adding sodium is not safe for everyone. Consult a healthcare provider, especially if on medication, pregnant, or managing a health condition. This tool does not diagnose, treat, cure, or prevent any condition and makes no weight-loss promises. Baseline assumes ~33 mL/kg/day of total water adjusted for activity, climate, and exercise; roughly 20% comes from food, so the headline number is the amount to drink. Over-drinking carries its own risk (hyponatremia), don't exceed about 1 L (32 oz) per hour sustained.
These statements have not been evaluated by the FDA. Thryve products are not intended to diagnose, treat, cure, or prevent any disease.