System status — launching soon

YOUR
FAST,
COMPLETE.

Three products. One system. Each formulated for a specific phase of your 16:8 intermittent fasting protocol — with ingredients dosed at clinically studied levels. No fillers. No fairy dust. No compromises.

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01 / 03PM — Before fast
START THE FAST
Collagen · Mg Glycinate · L-Theanine · Zinc
02 / 03AM — During fast
INTRA-FAST
Sodium · Magnesium · Potassium · Stevia
03 / 03AM — Break fast
BREAK THE FAST
Whey Isolate · Prebiotic Fiber · Enzymes · Superfood
Our position
Intermittent fasting has a supplement problem. Generic products, wrong timing, unproven doses. EIGHT16 fixes all three.
Products
3
Phase-specific formulations mapped to your fasting window
Ingredients
15
Every ingredient cited to peer-reviewed clinical literature
Filler
0
No proprietary blends, underdosed ingredients or empty claims
Protocol
16:8
Designed for the most evidence-backed fasting protocol

THREE PRODUCTS

01
Evening — Before your fasting window
START THE FAST

Taken before bed. Supports the body's physiological transition into a fasted state with a low-glycemic protein base, and promotes deep, restorative sleep during your fasting window. Collagen's amino acid profile elicits a minimal insulin response — the key to a clean overnight fast.

Collagen Peptides20g
Magnesium Glycinate200mg
L-Theanine200mg
Zinc10mg
When
8PM
02
Morning — During your fasting window
INTRA-FAST

Consumed during your fast. Declining insulin causes kidneys to excrete sodium, pulling magnesium and potassium with it. This zero-calorie blend — sweetened only with stevia — replaces what fasting takes away without triggering an insulin response or ending your fast.

Sodium Chloride500mg
Magnesium100mg
Potassium100mg
SteviaNatural
When
7AM
03
Late morning — Breaking the fast
BREAK THE FAST

Taken with your first meal. After extended fasting the body is catabolic — depleted of the essential amino acids needed to rebuild. Leucine-rich whey protein supports muscle protein synthesis and helps shift the body back toward an anabolic state. Digestive enzymes ease the transition back to eating. Prebiotic fiber feeds your microbiome and helps moderate the post-fast glucose spike.

Whey Isolate20g
Inulin + Acacia Fiber10g
Enzyme Complex4-blend
Superfood Blend500mg
Flaxseed2g
When
12PM

THE PROTOCOL

01
Finish your last meal

End eating for the day. For a cleaner transition, favour protein and fat over carbohydrates in your final meal — lower glycemic load means faster return to baseline insulin.

02
Take Start the Fast

Mix with cold water before bed. Collagen provides a low-spike protein base while magnesium, L-theanine, and tryptophan support sleep onset and quality through the fasting window.

03
Hydrate with Intra-Fast

On waking, mix Intra-Fast into water. Replenish sodium, magnesium and potassium without calories. Your fast remains intact. Your body stays hydrated and functional.

04
Break the Fast with intention

Take Break the Fast with your first meal at noon. Restart muscle protein synthesis, ease digestion back online, and restore the micronutrients your body has been without.

16:8 TIMELINE

8:00 PM
Start the Fast
Last meal done. Mix Start the Fast. Fast begins.
10:30 PM
Fasted State
Insulin returns to baseline. True fasted state established.
7:00 AM
Intra-Fast
Wake up. Mix Intra-Fast. Restore electrolytes. Fast continues.
12:00 PM
Break the Fast
16 hours complete. First meal. Take Break the Fast.
8:00 PM
Repeat
Eating window closes. Protocol resets.
2–5h
To reach a true fasted state

Your body doesn't fast the moment you stop eating. Insulin takes 2 to 5 hours to return to baseline after a meal. Start the Fast is timed for this transition — not the clock.

≥3g
Prebiotic fiber minimum for effect

Most products use trace amounts of inulin that produce no measurable prebiotic benefit. We use 10g across two complementary fibers — inulin and acacia gum — for full-spectrum gut support.

200mg
Magnesium Glycinate for sleep

Magnesium is one of the most depleted minerals during fasting. We use the glycinate form — the most bioavailable and best-tolerated — at the dose shown in clinical literature to support sleep quality.

These statements have not been evaluated by the Food and Drug Administration. EIGHT16 products are not intended to diagnose, treat, cure, or prevent any disease. All ingredients are used as structure/function claims only. Individual results may vary. Consult a healthcare professional before beginning any supplement regimen.

EARLY
ACCESS
OPEN.

We're building EIGHT16 with a small founding cohort. Join now for early access, founding pricing, and direct input on the product before launch.

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First access at launch
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