Is 16:8 good for beginners?

Yes. 16:8 is the gentlest common protocol — a 16-hour fast that's mostly sleep, with an 8-hour eating window. Ease in by delaying breakfast an hour every couple of days.

What can I have during the fasting window?

Water, black coffee, and plain tea. Anything with calories — milk, sugar, snacks — breaks the fast and restarts the clock.

How long until 16:8 shows results?

It varies and depends on your overall calories, not the clock alone. 16:8 makes consistency easy; results come from sticking with it over weeks, not from a single fast.

How to start 16:8 fasting (your first week)

16:8 is the easiest place to start: a 16-hour fast and an 8-hour eating window, every day. Most of it is the sleep you’re already doing. Here’s a calm first week — no app gimmicks, no streak guilt.

Pick your window

Choose the 8 hours you’ll eat. The most common is 12:00–20:00 (skip breakfast, normal lunch and dinner), but 10:00–18:00 or 13:00–21:00 work just as well. Pick the one that fits your real life — the best window is the one you’ll actually keep. See the full 16:8 protocol guide for variations.

Ease in — don’t jump

You don’t have to hit 16 hours on day one. Push your first meal later by an hour every couple of days:

Days 1–2 — eat within ~10 hours (a 14-hour fast). Just delay breakfast.
Days 3–4 — a ~9-hour window (15-hour fast).
Day 5 on — settle into the 8-hour window (16-hour fast).

By the end of the week a 16-hour fast brushes the start of fat-burning and the edge of ketosis — but the point of 16:8 is consistency, not chasing phases.

During the fasting window

Black coffee, plain tea, and water are fine and genuinely help. Anything with calories restarts the clock — here’s what breaks a fast. If you get a headache, it’s usually salt and water, not hunger — electrolytes help.

What to expect

First few days — hunger comes in waves and passes; it’s a habit adjusting, not an emergency.
By week’s end — most people stop noticing the missing breakfast.
Energy — usually steady; black coffee covers the morning.

Don’t undo it in the eating window

16:8 isn’t a license to binge. Eat normal, satisfying meals — protein, vegetables, enough food. A fast followed by a giant pastry blowout cancels the math. The window is for eating well, not for eating everything.

Keep honest time

This is where a plain timer beats guesswork. FastHQ starts when you stop eating and ends when you say — no auto-detection, no nags, just the clock and your log. It’s the streak-free version of fasting: consistency you can see.

This article is informational and not medical advice. If you are diabetic, on blood-sugar medication, pregnant, or have a history of disordered eating, talk to a doctor before fasting.