Scientific Content Hub

Creatine Benefits Guide

Sports performance, dosage, timing, safety, sleep and practical recommendations.

Beta-Alanine Guide

Sports performance, dosage, timing, safety, sleep and practical recommendations.

Caffeine Benefits Guide

Sports performance, dosage, timing, safety, sleep and practical recommendations.

Vitamin D3 + K2 Guide

Deficiency, dosage, K2 evidence, safety, athletes and product recommendations.

Protein Supplementation

Daily protein targets, whey timing, muscle growth, fat loss and safe supplementation strategies.

The GLP-1 Library — Every Guide, By Question

All 46 GLP-1 guides grouped by the question that brought you here: side effects, protein, muscle loss, training, and what happens after you stop.

What Are GLP-1 Medications?

The complete evidence-based guide to GLP-1 receptor agonists — what they are, how they work, and what STEP-1, SURMOUNT-1 and SELECT actually found.

How Much Weight Can You Lose?

STEP-1 and SURMOUNT-1 trial results translated into realistic expectations — average, range, timeline, and what happens after you stop.

GLP-1 and Muscle Loss

What SEMALEAN and SURMOUNT-1 body-composition data show, and the two proven ways to prevent lean mass loss on Ozempic, Wegovy, Mounjaro or Zepbound.

GLP-1 Side Effects

Every documented side effect ranked by frequency and severity, sourced to meta-analyses covering over 100,000 trial participants.

What to Eat on GLP-1

A protein-first, fiber-first nutrition framework built for small appetites and GI tolerance — with a sample day of eating.

Best Supplements for GLP-1

An honest, tier-ranked breakdown of which supplements have real evidence for GLP-1 users — and which to skip.

Best Exercise Routine for GLP-1

A weekly training template balancing strength, cardio and recovery — plus beginner modifications and energy management.

GLP-1 & Metabolic Health

What the SELECT trial and other evidence show about GLP-1 medications beyond weight loss — diabetes, cardiovascular risk, fatty liver, sleep apnea and blood pressure.

Protein Intake on GLP-1

The joint-society protein target for GLP-1 users — how much, per meal, and how to hit it on a suppressed appetite.

Weight Regain After Stopping GLP-1

How much weight comes back after stopping, how fast, and why clinicians call it recurrence rather than failure.

Nausea on GLP-1 Medications

Why nausea is the most reported GLP-1 side effect, when it settles, and the strategies that follow from the mechanism.

Gym Duffel Bag Checklist

The three checks that separate a gym bag that lasts from one that fails in a month.

Home Arm & Chest Trainer

Resistance type, adjustment range and stability — what to check before buying a compact trainer.

Constipation on GLP-1

How often it happens in the pooled trial data, why the mechanism causes it, and the order to fix it in.

Resistance Training on GLP-1

What a year-long randomised trial found when exercise was added to the medication.

Alcohol and GLP-1 Medications

A randomised trial tested semaglutide on alcohol consumption — what it found and what it did not.

GLP-1 and Pancreatitis

What the cohort data shows, why the confidence intervals are so wide, and the symptoms needing urgent care.

Do Vibration Plates Work?

Marketed for fat loss. Pooled data from 54 randomised trials says something quite different.

Hex Dumbbells & Racks

Fixed versus adjustable, and the rack spec that decides whether your set actually fits.

Best Air Fryer for High-Protein Cooking

Basket versus oven for protein-first meal prep — capacity, temperature range and the coating question.

Does GLP-1 Cause Hair Loss?

What a 547,993-person cohort found — and whether it is the drug or the weight loss.

Creatine on GLP-1

What the lean-mass evidence shows, and the honest answer about what has not been tested.

Gallstones and GLP-1

Quantified risk from 55 randomised trials, and the symptoms that need urgent care.

Why Your GLP-1 Weight Loss Stalled

The plateau explained — arithmetic first, adaptation second, and which levers matter.

Fatigue on GLP-1

Four separate causes, three of them fixable — and the trial figure against placebo.

Hydration & Electrolytes on GLP-1

Why fluid intake falls without you noticing, and the warning signs that need care.

Diarrhoea on GLP-1

How often it happens, and why the same drug causes both diarrhoea and constipation.

GLP-1 and Sarcopenia in Older Adults

Why age changes the calculation, and what guidance says to assess before starting.

Fibre on GLP-1

Why adding fibre first backfires, and the order to change things in.

"Ozempic Face" Explained

Why a systematic review concluded it is rapid weight loss, not the drug.

Micronutrient Deficiency on GLP-1

Which nutrients go first, what to get checked, and when a supplement is justified.

Protein When You Can Only Eat a Little

Protein density ranked — most protein per bite, and what wastes the room you have.

Nutrition

Air Fryer Cooking for GLP-1 Users

Portion sizing, texture when nothing appeals, and batching a week.

The GLP-1 Weight Loss Timeline

Month by month — when loss is fastest, when it slows, and why.

HMB for Lean Mass: Who It Helps

The subgroup result that decides whether it is worth your money — it works without exercise, not with it.

Maintaining Weight Loss After GLP-1

What the discontinuation data shows, and why maintenance is a different problem from loss.

Cardio or Strength Training on GLP-1?

Which matters more during weight loss, and how to split limited time and energy.

Training on Low Energy and No Appetite

Cut volume, not intensity — and the ten-minute session that stops the habit breaking.

Small Meals or Three on GLP-1?

Why the protein target decides it, not metabolism.

Body Composition

Measuring Body Composition at Home

Smart scales, waist tape and what each is good for — including the honest limits of home body-fat readings.

The High-Protein Kitchen

What to buy for protein-first cooking, in what order — and the four categories to skip entirely.

Meal Prep Storage

Glass versus plastic, the seal that decides everything, and whether a vacuum sealer earns its place.

Do You Need a Blender for Protein Shakes?

A shaker handles powder and liquid. Here is the narrow case where a blender actually earns its place.

Hands-Off Cooking Appliances

What a pressure cooker with a built-in scale changes, and an honest read on the cooking robot category.

Electrolytes

Sodium, potassium, magnesium, sweat loss, cramps, endurance performance and hydration safety.

Training Research

Home Gym

The Home Gym Library

Every equipment guide grouped by the job the gear does — weights, bodyweight, cardio, recovery and measurement.

Home Gym

Do Walking Pads Work?

The step-count evidence, the one thing a walking pad will not do, and the motor spec that decides whether it lasts.

Muscle Growth

Hypertrophy mechanisms, training volume, progressive overload and practical programming.

Strength

Maximal strength development, intensity, frequency, periodisation and peaking strategies.

Recovery

Sleep, active recovery, deload strategies and optimising adaptation between sessions.

Muscle Hypertrophy

Volume, intensity, training to failure, cardio interference, protein, creatine and recovery principles.

Sports Hydration

Fluid intake, sweat rate, sodium, electrolytes, carbohydrates and heat performance strategies.

Strength Training

Progressive overload, sets, reps, intensity, older adults and cardiovascular health considerations.

Power Training

Rate of force development, load specificity, plyometrics, sprinting, jump training and periodization.

Endurance Training

VO2max, lactate threshold, HIIT, polarized training, running economy and practical programming.

How to Build a Home Gym

What to buy and in what order — five stages, what each unlocks, what to skip, and three budget tiers.

Ankle Mobility & Slant Boards

What the evidence says about ankle dorsiflexion, squat depth, and slant-board calf stretching.

Special Populations

Older adults, cardiac patients, type 2 diabetes, obesity, pregnancy and youth — dose and constraints.

Longevity Research

Scientific Dossier

#1 Predictor of Longevity

20.9M observations, 199 cohort studies. VO₂ max, grip strength, and effect sizes vs. smoking and diabetes — with limitations and practical takeaways.

Read Dossier ->

Evidence Review

Strength & All-Cause Mortality

3.1 million participants. HR 0.69. What handgrip strength and knee extension reveal about survival — and where the evidence is strong vs. where caveats apply.

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Evidence Review

Muscle Mass & Mortality Risk

RR 1.36–1.57 across 878,349 participants. OR 3.60 for sarcopenia. The science of how low muscle mass predicts longevity outcomes — and its measurement challenges.

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Evidence Review

Protein Intake for Older Adults

715,128 participants. 1.0–1.2 g/kg/day evidence target. Why the RDA is a floor, not an optimum — and how protein source shapes longevity outcomes.

Read Review ->

Healthy Aging

Muscle mass, bone density, metabolic health and evidence-based strategies for longevity.

Cognitive Health

Supplements, lifestyle and training interventions that support brain function and memory.

Metabolic Health

Insulin sensitivity, body composition, cardiovascular risk and practical diet strategies.

Evidence Reviews

Creatine Side Effects

Kidneys, hair loss, water retention, cramps and myths — what the evidence actually shows.

Scientific Summaries

Process

Research Methodology

How we evaluate evidence, select studies and translate science into practical recommendations.