Fat-Soluble Vitamins (A, D, E, K)
Vitamins stored in body tissues that support vision, immune function, bone health and healthy blood clotting.
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Nutrient Library Hub
Clear, evidence-informed explanations of vitamins, minerals, amino acids, essential fats and more — written in everyday language so you can understand how nutrients support health and wellbeing. No hype. No pressure. Just clarity you can trust.
Every profile is reviewed for accuracy, clarity and compliance with Australian TGA and AHPRA expectations. Content is for general education only and is not a substitute for medical advice, diagnosis, or treatment. Always speak with your GP or qualified healthcare professional about your own situation.
LearnHub is part of The Vitamin Guy ecosystem alongside our mobile IV nutrient therapy services in Brisbane, Gold Coast and Northern Rivers NSW. All IV infusions require a GP assessment and prescription and are delivered by AHPRA-registered nurses.
Browse the Learn Hub library of
evidence-informed nutrient profiles. Each overview explains what the nutrient does, where it comes from, and how it
fits into everyday health — for education only, not medical advice.
You can also jump straight to category hubs:
Fat-Soluble Vitamins,
Water-Soluble Vitamins,
Minerals,
Amino Acids,
Essential Fats,
Hydration & Lifestyle, and
Antioxidants.
Vitamins stored in body tissues that support vision, immune function, bone health and healthy blood clotting.
Vitamins that dissolve in water and are not stored in large amounts — important for energy, nerves and immune defence.
Essential elements for fluid balance, muscles, bones, circulation and enzyme systems.
Building blocks of protein involved in muscle repair, enzymes, neurotransmitters and more.
Omega-3, -6 and -9 fatty acids that support membranes, brain structure and heart health.
Water, electrolytes and fibre — the foundation for circulation, digestion and everyday wellbeing.
Compounds that help protect cells from oxidative stress and support long-term tissue health.
Supports healthy vision, skin integrity and immune barrier function.
Helps regulate calcium balance, bone strength and immune signalling, especially when sun exposure is limited.
A fat-soluble antioxidant that helps protect cell membranes from oxidative damage.
Supports normal blood clotting and works with vitamin D and calcium for bone health.
Works with vitamin D to help direct calcium into bones and away from arteries.
Key for carbohydrate metabolism and normal nerve and heart function.
Helps convert food into cellular energy and supports normal skin and eye health.
Supports energy production, normal nervous system function and healthy skin.
Involved in coenzyme A pathways for energy production and normal stress response.
Required for neurotransmitter synthesis, haemoglobin formation and amino acid metabolism.
Supports normal hair, skin and nails and participates in carboxylase enzyme function.
Important for DNA synthesis, red blood cell formation and pre-conception / pregnancy support.
Supports red blood cell production, nerve health and energy metabolism, especially in low-intake groups.
Water-soluble antioxidant that supports collagen production, iron absorption and immune defence.
Major mineral for bones, teeth, nerve transmission and muscle contraction.
Involved in hundreds of enzyme reactions, muscle relaxation and nervous system support.
Works with calcium in bones and forms part of ATP, the body’s main energy currency.
Key intracellular electrolyte for fluid balance, nerve impulses and normal heart rhythm.
Major extracellular electrolyte important for fluid balance and nerve conduction.
Present in amino acids and structural tissues such as hair, skin and connective tissue.
Core component of haemoglobin, carrying oxygen around the body and supporting energy levels.
Essential for thyroid hormone production and normal growth and development.
Trace mineral involved in antioxidant enzymes and thyroid hormone metabolism.
Supports immune function, skin repair, taste and smell and normal fertility.
Long-chain fats (ALA, EPA, DHA) that support brain structure, mood and cardiovascular health.
Essential polyunsaturated fats that contribute to normal growth, skin health and cell membranes.
Monounsaturated fats such as oleic acid commonly found in olive oil and Mediterranean-style diets.
Fundamental for blood volume, temperature control and nutrient transport.
Charged minerals (such as sodium, potassium, magnesium) that help maintain fluid balance and muscle function.
Supports regular bowel habits, gut microbiome health and longer-lasting fullness.
A carotenoid that can be converted to vitamin A and contributes to antioxidant defence.
Carotenoids concentrated in the eye’s macula, supporting visual performance and light handling.
A mitochondrial cofactor involved in cellular energy production and antioxidant protection.
A major intracellular antioxidant involved in redox balance and liver-related pathways.
A large family of plant compounds with roles in antioxidant activity, circulation and gut interactions.
A branched-chain amino acid central to muscle protein synthesis signalling.
Branched-chain amino acid involved in muscle metabolism and energy during activity.
Branched-chain amino acid that helps supply energy to muscles and supports protein balance.
An essential amino acid used to make serotonin and melatonin in the body.
Precursor for catecholamine neurotransmitters and thyroid hormones.
Conditionally essential amino acid used heavily by gut and immune cells.
Simple amino acid abundant in collagen, involved in connective tissue and sleep-related pathways.
Learn Hub is an educational resource only and does not provide medical advice. Any IV nutrient therapy must be assessed and prescribed by an independent GP and delivered by AHPRA-registered nurses using nutrients made in an Australian TGA-licensed GMP compounding facility.
Mobile IV nutrient therapy with The Vitamin Guy is available in Brisbane, Gold Coast and Northern Rivers NSW. To understand the process, visit the FAQ or explore Our Services.
Nutrition feeds the body, while mindfulness nourishes the mind. Just as the nutrients in the LearnHub library help support your cells, mindfulness can assist with stress regulation, focus, and emotional balance. True wellness comes from paying attention to both.
Smiling Mind is an evidence-informed mindfulness and meditation program created by Australian psychologists and educators. It offers guided sessions for 🛌 Sleep, 😌 Stress relief, and 🎯 Focus, making it easier to build mindfulness into everyday life.
If you’d like to explore mobile IV therapy properly, start with the process. Prescriptions are issued by an independent GP when clinically appropriate, and appointments are then arranged around your location and schedule.

Send through your details and preferred day. Once the GP assessment is complete and a prescription is issued where appropriate, the appointment can be confirmed.