Best Seller ProLon Fasting Shake vanilla flavor plant-based protein gluten-free vegan pack of 14 sachets
ProLon Fasting Shake vanilla flavor plant-based protein gluten-free vegan pack of 14 sachetsProLon Fasting Shake vanilla flavor plant-based protein with glass of shake and vanilla flowers

SKU FS100412EU-SUB  ·  Fasting Mimicking Diet

Fasting Shake

The best from nature, nurtured by ProLon longevity science — a breakthrough in nutrition and healthy aging science. The proprietary blend of Fasting Shake avoids triggering the body's response to food, keeping it in a fasting, fat-burning state for longer!

  • Vanilla Flavor
  • 12 Individual sachets per bag
  • Gluten-free, Dairy-free, Soy-free, Vegan
  • Extend your fasting window
  • Breakdown fat and use it as fuel
  • 21 Vitamins & minerals
  • Plant-based, healthy fats, prebiotic fiber
  • Product options
Nutritional Fact Information
HCP Wholesale
£55.00

Ships from Lonso Milan facility · 72h after order confirmation · free cold-chain shipping on orders over €1,500.

Breakfast skip, made easy

Patients who 'need something in the morning' can use the shake to extend the overnight fast by 4–6 hours.

Coffee-friendly

Designed to whisk into hot coffee. No grit, no curdle. The smoothest fasting- window ritual we ship.

30 servings per tub

Cost per fasting moment lands at ~€1.65 HCP. The lowest unit cost in the Intermittent Fasting line.

How it fits the protocol

Inside the fasting window. As a morning ritual.

01

Breakfast skip

First thing in the morning — the shake bridges the 4– 6 hour gap between waking and the eating window. Especially useful in 16:8 patients who can't push past 11am unaided.

02

Coffee replacement

Whisked into espresso it becomes the morning ritual itself. Patients who 'need their coffee' get a fasting- compatible version that respects their habit.

03

Not during 5-day FMD

The Fasting Shake is NOT included in the 5-day FMD kit — those macros are calibrated. Use the shake exclusively for daily IF days between cycles.

What's in the scoop

One 20 g scoop. 200 kcal.Fat-led, fibre-rich, protein-capped.

The shake shares its macro philosophy with the Fasting Bar — fat-forward, protein-capped — but the liquid format works better for morning routines, patients who can't tolerate solid food first thing, or anyone already attached to a hot drink ritual.

01

PER 2 CAPS

5 g

MCT powder

Coconut-derived C8/C10

Medium-chain triglycerides convert directly to ketones in the liver without spiking insulin. The active ingredient in the shake — what makes it sustain a fast rather than break it.

Ketone fuel
02

PER 2 CAPS

Cocoa or vanilla flavour

Natural sources only

Cocoa (Dark Chocolate, Coffee & Cocoa) or Madagascar vanilla. No artificial flavourings, no sucralose, no stevia. The shake tastes like the food it's named after.

Natural flavour
03

PER 2 CAPS

4 g

Inulin + acacia fibre

Chicory root + acacia

Soluble fibres smooth the small glucose response and feed the post-FMD microbiome. Same family of prebiotics used in L-Biome — the synergy is intentional.

Prebiotic
04

PER 2 CAPS

3 g

3 g plant protein

Pea protein isolate

Capped at 3 g for exactly the same reason as the Fasting Bar — high enough to round the texture, low enough to keep IGF-1 / mTOR pathways quiet during the fast.

IGF-1 quiet

Macro split · per 20 g scoop

60% fat. 8% carbs.
A macro shape thatkeeps the fast open.

Macros are matched across all three flavours within ±5%. The visible difference is in serving style — switch the flavour above to see how we recommend preparing each one.

Fat (MCT-led)

12 g 108 kcal

Net carbs

4 g 16 kcal

Fibre

4 g —

Protein

3 g 12 kcal

Biological Age Score · Nature Aging, 2024

Three cycles. 2.5 years younger, on the data.

In the Mishra et al. 2024 trial (n=144, RCT), patients completing three consecutive Prolon FMD cycles reduced their Levine PhenoAge by an average of 2.5 years versus controls.

Read the Trial →

3 yrs

Biological Age Δ

−1.30 pp

HBA1C (12 wk)

−7.4%

Trunk Fat

96%

1st-Cycle Completion

FAQs
No. Fasting Shakes should be enjoyed outside your 5-Day Fasting Mimicking Diet. It’s designed for intermittent fasting days or as part of your everyday Longevity Lifestyle between FMD cycles.
The Fasting Shake’s unique blend of ingredients avoids triggering the body’s nutrient-sensing pathways (NSPs), allowing you to stay in physiological fasting while receiving nourishment.
Yes. The Fasting Shake is vegan, gluten-free, soy-free, dairy-free, and low-glycemic. It does contain nuts, however, so those with nut allergies should not use it.
The Fasting Shake contains a proprietary blend of plant-based proteins and healthy fats from nuts like macadamias, pecans, and almonds, plus 21 essential vitamins and minerals, prebiotic fiber, and natural cocoa or vanilla flavor.
The Fasting Shake is designed for intermittent fasting and formulated with less protein to help maintain a fasting state by staying below nutrient-sensing pathways, while L-Protein Shake is intended for your feeding window, providing higher protein to support muscle health between fasts as part of your daily longevity routine.

Complete the Protocol

Other essentials.