Gamma-aminobutyric acid — the brain's primary inhibitory neurotransmitter. Slows nerve activity and promotes relaxation and sleep.

Gamma-linolenic acid — an omega-6 fatty acid with anti-inflammatory effects. Found in evening primrose oil and borage oil.

Glucagon-like peptide-1 — an intestinal hormone that regulates satiety and blood sugar. Basis for Ozempic/Wegovy.

Good Manufacturing Practice — quality framework ensuring consistent production to defined standards.

Global Trade Item Number — GS1-managed unique identifier for trade items (UPC, EAN, ISBN).

Scientific genus name for Reishi mushrooms. Over 80 species identified — G. lucidum and G. lingzhi are the most studied.

Tropical fruit whose rind contains hydroxycitric acid (HCA), which may inhibit fat formation and suppress appetite. Popular weight management supplement.

Garlic (Allium sativum) contains allicin with antibacterial, antiviral and blood pressure-lowering properties. One of the most studied natural remedies.

Garlic contains allicin — a potent sulphur compound with broad antimicrobial effects. Supports immune function and heart health.

Tropical root plant (Zingiber officinale) with powerful anti-inflammatory and antiemetic effects. Gingerols inhibit COX-2 and LOX.

One of the world's oldest tree species with leaves that improve blood circulation to the brain. Used for memory and cognitive function.

Ginseng (Panax ginseng) is one of the world's most widely used medicinal plants. An adaptogen that supports energy, cognitive function, and the immune system.

Water-soluble fibre from konjac root that swells significantly in the stomach, creating a feeling of fullness. EU-approved for weight loss.

Natural amino sugar that is a building block of cartilage and synovial fluid. One of the most widely used supplements for joint health globally.

The body's master antioxidant — a tripeptide of cysteine, glycine, and glutamate. Protects cells, supports detoxification and immune defence.

Measure of how quickly a food raises blood sugar. Low GI (<55) provides steadier energy and less insulin release.

The simplest amino acid with calming and sleep-promoting properties. An important component of collagen and glutathione.

The simplest amino acid with a calming effect on the central nervous system. Lowers core body temperature and improves sleep quality.

Chinese happiness berry (Lycium barbarum) rich in zeaxanthin, polysaccharides, and vitamin C. Traditional longevity food.

Ayurvedic herb (Centella asiatica) that supports brain function, collagen synthesis, and blood circulation. Known as the "brain herb" in Asia.

Concentrated extract from green tea rich in the catechin EGCG that may increase fat burning and thermogenesis. One of the most studied weight management supplements.

Green-lipped mussel (Perna canaliculus) from New Zealand contains unique omega-3 fatty acids and glycosaminoglycans. An effective joint supplement.

Guarana (Paullinia cupana) contains caffeine with slow release plus theobromine and theophylline. Provides sustained energy without caffeine crash.

Gut flora (the microbiome) consists of trillions of microorganisms in the gut that influence digestion, immune function, brain function, and body weight.

Ayurvedic herb known as the "sugar destroyer" for its ability to block sweet taste receptors and support blood sugar balance.