Science-first
We anchor every recommendation in the strongest human evidence available — insulin sensitivity, blood pressure, metabolic flexibility. If the research is thin, we say so out loud.
Science-backed fasting protocols
Your metabolism,
made new.
Personalized intermittent fasting guidance grounded in peer-reviewed research — not trends, not hype. Built by a Christian who believes the body is worth caring for.
- Day 1 protocol — what to eat, when to eat it
- The hunger curve — what day 3 feels like and how to ride it
- Peer-reviewed research behind every claim
Not ready to fast? Try the 7-day Meal + Move tracker instead →
By Brian Schultz — FounderInside the protocolFour pieces. No fluff.
I.Personalized fasting windows
II.Research-informed macros
III.Circadian meal timing
IV.Every claim cited
The signal, in numbers
0+
Peer-reviewed fasting studies published since 2016. More evidence than any single creator could read in a lifetime — which is why most of the internet is guessing.
73%
of popular fasting content lacks cited research.
89%
quit within 30 days without structured guidance.
Not ready to fast yet?
Start with two moves
you already do.
Sequence your bites. Walk ten minutes. Seven days, printable, no fasting required.
- Vegetables and protein before carbs (food order)
- 10-minute walk within ~15 min after one meal
- 7-day printable PDF, instant email delivery
- No CGM, no supplements, no upsell
Our approach
Built on research. Not trends.
Personalized
Fasting is not one-size-fits-all. The upcoming Manna Protocol tool factors your lifestyle, experience, and goals into a window and macro profile that actually fits your week.
Openly Christian
The faith is a visible identity, not a marketing aesthetic. No prosperity-gospel upsell, no Bible-verse-on-every-product. The protocols work for anyone; the meaning is optional.
Science-first
We anchor every recommendation in the strongest human evidence available — insulin sensitivity, blood pressure, metabolic flexibility. If the research is thin, we say so out loud.
Personalized
Fasting is not one-size-fits-all. The upcoming Manna Protocol tool factors your lifestyle, experience, and goals into a window and macro profile that actually fits your week.
Openly Christian
The faith is a visible identity, not a marketing aesthetic. No prosperity-gospel upsell, no Bible-verse-on-every-product. The protocols work for anyone; the meaning is optional.
01
16:8 vs 18:6 vs OMAD vs 5:2
What each window actually does in the body — and which one fits beginners, athletes, and metabolically resistant folks.
02
The adaptation phase
Days 3–10 are where most people quit. Here is exactly what hunger, energy, and sleep look like — and how long each lasts.
03
Hydration & electrolytes
Sodium, potassium, magnesium. The actual numbers that keep headaches, cramps, and lightheadedness from tanking your window.
04
Training fasted
When fasted cardio helps, when it hurts, and why heavy resistance work belongs inside your eating window — not before breakfast.
05
Preserving muscle
Protein distribution, leucine thresholds, and why TRE preserves lean mass better than chronic caloric restriction.
06
Food order hack
Vegetables and protein before carbs dropped post-meal glucose 29–54% in type 2 diabetes. Free. Instant. Barely discussed.
The research, in one line
Intermittentfastingimprovesinsulinsensitivity,bloodpressure,andmetabolicflexibility —independent of weight loss.
Synthesis of peer-reviewed human research
The receipts
Six studies,
plain English.
Every finding here is linked to the primary source. Not a summary of a summary. How we evaluate research →
01
Sutton et al.
Cell Metabolism · 2018
Early time-restricted eating (6-hour window, dinner before 3pm) improved insulin sensitivity, β-cell function, blood pressure, and oxidative stress in prediabetic men — with no weight loss.
Read the source02
TIMET Trial
Annals of Internal Medicine · 2024
12-week 10-hour TRE in metabolic syndrome lost body weight, BMI, and abdominal fat — without lean muscle loss.
Read the source03
Shukla et al.
Diabetes Care · 2015
Same meal, different order: protein and vegetables before carbs dropped post-meal glucose 29–54% and insulin 50% in type 2 diabetes.
Glucose drop (low-end)
29%
Glucose drop (high-end)
54%
Insulin drop
50%
Same meal, different order. In type-2 diabetes — protein and vegetables before carbs.
04
de Cabo & Mattson
New England Journal of Medicine · 2019
The most-cited IF review in medicine — evidence for metabolic switching, insulin sensitivity, cardiovascular outcomes, and longevity across 16:8, 5:2, and alternate-day protocols.
Read the source05
Anton et al.
Obesity · 2018
The metabolic switch to ketone-based fuel occurs between 12–36 hours of fasting — later than popular claims. This calibrates what 16:8 actually delivers.
Read the source06
Jamshed et al.
JAMA Internal Medicine · 2022
14-week TRE in obesity: modest weight loss, improved diastolic blood pressure, better mood and fatigue scores. Modest gains compound when sustained.
Read the sourceStart here
Four pieces. Four proofs the bridge is real.
Most sites pick a side — pure science or pure devotion. This one refuses to. Each piece below proves both belong.
Science
The food-sequencing hack
Glucose drops 29–54% — when you change the order, not the meal.
Read it→
Scripture
Isaiah 58 — the honest test
Is your fast making you kinder, or meaner? The text gives the rule.
Read it→
The Bridge
Body stewardship
What 1 Corinthians 6:19 actually means in 2026 — six disciplines, no slogans.
Read it→
Practice
The Daniel Fast
Where ancient partial fasting and modern metabolic research meet.
Read it→
Questions
Common questions.
What is Metabolic Manna?
A health and wellness platform focused on science-backed intermittent fasting protocols. We provide personalized guidance grounded in published research — not trends or hype. The upcoming Manna Protocol tool will recommend fasting windows, macros, and meal timing customized to your lifestyle.
Is this medical advice?
No. Metabolic Manna provides educational content based on peer-reviewed research. We are not doctors, and our content does not replace professional medical advice. Always consult your healthcare provider before starting any fasting protocol — especially if you have existing health conditions.
What's inside the free 7-Day Metabolic Reset Guide?
A beginner-friendly guide to starting intermittent fasting safely: a 7-day schedule, what to eat during your eating window, how to handle common challenges (hunger, energy dips), and peer-reviewed research behind each recommendation. No fluff, no upsells — just actionable science.
Do you build landing pages for other businesses?
Yes. The same hand-coded approach behind this site is available as a service — single-file HTML, conversion copy, micro-animations, a custom AI chatbot trained on your business, and Netlify deployment included. No page builders, no monthly platform fees. Find me on Fiverr @metabolicmanna.
When does the Manna Protocol launch?
The Manna Protocol is currently in development. Sign up above to get early access — founding subscribers receive a launch discount and are the first to know when it goes live.
One more time
Your metabolism,
made new.
Science. Research. A steady hand. The 7-Day Metabolic Reset Guide is yours — free, no upsells, every claim cited.