Energy & everyday needs
Protein, carbohydrates and fats, alongside water, fibre and amino acids.
THE NUTRITION COLLECTIONUnderstand nutrition.
Understand nutrition.
See the whole picture.
From everyday nutrition to glutathione, NAC and other supplement ingredients. A connected library to help you understand food, compare formulas and assess the evidence.
Explore all 24 guidesMacronutrientsProtein · Carbohydrates & fibre · Fats
MicronutrientsVitamins · Minerals
How we research ↗THE INGREDIENT COLLECTION
Explore 8 ingredient guides ↗What's behind the label?
From glutathione to creatine. Follow the evidence, understand the forms and make your next comparison clearer.
INGREDIENT GUIDE
Glutathione
A familiar promise. A closer look at the evidence.
Take a closer look ↗INGREDIENT GUIDENAC
Know the ingredient. Keep the medical context.
Take a closer look ↗INGREDIENT GUIDEAlpha-lipoic acid
The initials are simple. The distinctions matter.
Take a closer look ↗INGREDIENT GUIDECoQ10
Compare the form without losing sight of the evidence.
Take a closer look ↗HOW IT ALL FITS TOGETHER
Start with the fundamentals ↗A clear map of your nutrition.
Small amounts. Essential roles.
Water- and fat-soluble vitamins. Major minerals and trace minerals.
Requirements & better questions
Put nutrients into meals, understand digestion and check supplement evidence.
START WITH A QUESTION
Explore nutrition & ingredients.
24 guides · review dates on each guide
N01 / FOUNDATIONS
The nutrition map
Macronutrients, micronutrients and the meaning of essential.
Read the guide ↗Fi02 / MACRONUTRIENTS
Fibre (fiber)
Soluble, insoluble and fermentable fibre, food sources and sensible supplement use.
Read the guide ↗V03 / MICRONUTRIENTS
Vitamins
A practical map of all 13 vitamins, food sources, label units and supplement decisions.
Read the guide ↗M04 / MICRONUTRIENTS
Minerals
Major minerals, trace minerals, their food sources, and the details that broad mineral labels can miss.
Read the guide ↗P05 / MACRONUTRIENTS
Protein
Everyday protein, exercise needs, Indian meal ideas and how to compare powders.
Read the guide ↗C06 / MACRONUTRIENTS
Carbohydrates & sugars
Starches, sugars and carbohydrate labels, with a direct route to the dedicated fibre guide.
Read the guide ↗F07 / MACRONUTRIENTS
Fats & omega-3
Unsaturated and saturated fats, cooking oils, omega-3 and supplement label checks.
Read the guide ↗AA08 / MACRONUTRIENTS
Amino acids
Essential, non-essential and conditional: understand protein’s building blocks.
Read the guide ↗H₂O09 / MACRONUTRIENTS
Water & electrolytes
Fluid needs, mineral balance and everyday hydration.
Read the guide ↗G10 / FIBRE & GUT
Gut health & the microbiome
Prebiotics, probiotics, synbiotics, postbiotics and fermented foods.
Read the guide ↗D11 / FIBRE & GUT
Digestion & absorption
How nutrients become available—and why intake is not the whole story.
Read the guide ↗M+12 / FOUNDATIONS
Balanced meals & energy
Turn nutrient knowledge into a varied daily food pattern.
Read the guide ↗R13 / FOUNDATIONS
Daily requirements
RDA, AI, EAR, upper limits and label percentages—without mixing them up.
Read the guide ↗C+14 / MICRONUTRIENTS
Choline & plant compounds
Essential choline, plant compounds and antioxidant claims explained.
Read the guide ↗↗15 / FOUNDATIONS
Deficiency, excess & life stages
Know when general nutrition guidance needs an individual assessment.
Read the guide ↗Q16 / PRODUCT QUALITY
Quality & traceability
Follow the maker, the batch and the evidence behind a product.
Read the guide ↗GSH17 / SUPPLEMENT INGREDIENTS
Glutathione
Understand oral glutathione, skin claims, label amounts and the difference between a biological role and a proven benefit.
Read the guide ↗NAC18 / SUPPLEMENT INGREDIENTS
NAC
N-acetylcysteine, its relationship with glutathione, and practical checks for single-ingredient and combination formulas.
Read the guide ↗LA19 / SUPPLEMENT INGREDIENTS
Alpha-lipoic acid
Understand lipoic acid forms, the evidence for nerve symptoms and why ALA can mean a different nutrient on another label.
Read the guide ↗Q1020 / SUPPLEMENT INGREDIENTS
CoQ10
Ubiquinone, ubiquinol, combination products and the questions behind “energy” and “heart support” claims.
Read the guide ↗Ax21 / SUPPLEMENT INGREDIENTS
Astaxanthin
Explore astaxanthin skin research and compare ingredient strength, carrier oils and the full softgel shell.
Read the guide ↗Col22 / SUPPLEMENT INGREDIENTS
Collagen
A practical guide to collagen peptides, the limits of skin research and comparing powders with combination formulas.
Read the guide ↗Cr23 / SUPPLEMENT INGREDIENTS
Creatine
Understand where creatine has stronger evidence and how to compare a plain monohydrate powder with a mixed sports formula.
Read the guide ↗Ash24 / SUPPLEMENT INGREDIENTS
Ashwagandha
Explore stress and sleep research, extract differences and the safety questions that matter before choosing ashwagandha.
Read the guide ↗No matching guide in this view. Try another nutrient or .
A USEFUL WAY TO BEGINYour meals.
Your meals.
Your questions.
Your next step.
You do not need to buy a product to use these guides.
- 01
Start with what you eat
Note your usual meals and which food groups appear regularly.
- 02
Learn the relevant nutrient group
Use the food examples, label checks and source links to understand your options.
- 03
Ask a focused question
If you suspect a deficiency or have a medical condition, take your diet and supplement list to a qualified clinician or dietitian.
Guides explain general adult nutrition. They do not mean every reader needs every supplement. These written guides are currently in English. The original magnesium desk retains its multilingual voice guide.