§02 · FAST

Fasting

Staying hydrated and electrolyte-balanced through intermittent and extended fasts.

A lean man in his late fifties with salt-and-pepper hair and glasses stands at a cluttered morning kitchen counter, holding a mug of black coffee and squinting at the small print on a food packet, an empty glass and dishes beside him in soft window light.

Does Erythritol Break a Fast? The Insulin and Calorie Question

Does erythritol break a fast? A spec-sheet read on calorie absorption, the insulin data, and where this polyol sits against xylitol and maltitol.

2026-07-07

An East Asian man in his mid-40s in a heather-gray T-shirt takes a contemplative sip from a cloudy glass of salted water at a cluttered home-office desk — notebook of handwritten time stamps, thermos, empty coffee mug, plain salt shaker, and a laptop full of windows — in late-afternoon side light, deep into a 24-hour fast.

§02 · FAST

How much sodium during a 24-hour fast?

The commonly cited ranges for fasted sodium, where they actually come from, and a sample dosing pattern across a 24-hour window.

2026-06-13

A torn electrolyte drink-mix stick pack lies flat on a kitchen counter beside a clear glass of water and a back-of-pack nutrition panel, available daylight from a side window

§02 · FAST

Does Liquid IV Break a Fast? Reading the Label Line by Line

A spec-sheet walk through the panel — calories, dextrose, stevia — and where each one sits against the common definitions of a fast.

2026-06-06

A man at a kitchen counter lifts a plain mug of black coffee to drink, a glass of sparkling water beside it in cool light.

§02 · FAST

Coffee, Black Tea, and Sparkling Water During a Fast

A clear-eyed list of fasting-window drinks ranked by caveat, the hidden calories and additives to watch, and how to hydrate without breaking the fast.

2026-04-24

A man at a home desk reaches for a tall glass of water beside a black coffee, a wall clock behind him.

§02 · FAST

Intermittent Fasting and Hydration: Timing Your Fluids

A practical how-to for staying well-hydrated across fasting and eating windows, with guidance on coffee, tea, and fasting fluids.

2026-04-18

A man pauses at a kitchen counter mid-fast, one hand pressed to his temple beside a glass of water in cool daylight.

§02 · FAST

Headaches and Dizziness While Fasting: Is It Electrolytes?

Sorting common, benign fasting discomfort from signals that mean stop, the sodium-and-hydration connection, and the red flags to respect.

2026-04-12

A woman on a long fast sits on a couch looking depleted, holding a glass of water beside a phone showing a timer.

§02 · FAST

Why Longer Fasts Raise the Stakes on Electrolytes

How multi-day fasting shifts fluid and mineral needs, the warning signs to never ignore, and why extended fasts call for medical oversight.

2026-04-07

A woman stirs a pinch of mineral salt into a clear glass of water at a kitchen island in cool morning light.

§02 · FAST

Can You Have Electrolytes While Fasting Without Breaking It?

What breaking a fast actually means, where zero-calorie electrolytes fit, and how your specific fasting goal changes the answer.

2026-04-01