Ghatti.

The polysaccharide carries a small covalently linked protein fraction that anchors at the oil droplet surface while the carbohydrate chains extend into water and hold droplets apart. That combination lets it stabilise oil in water emulsions at lower use levels than most gums manage. This is why it appears in beverage emulsions carrying lipid actives.

Cholecalciferol will not dissolve in water and separates out of a drink without a stabilising system. Ghatti-stabilised emulsions keep it dispersed through shelf life and shake cycles. That is a formulation function, and it should not be read as a claim that ghatti raises the amount absorbed in a person.

Carotenoid emulsions are prone to creaming and oxidation, and the gum's interfacial layer slows both. Ghatti performs this role at lower use levels than gum arabic requires. Delivery and stability are the claim here, not increased uptake.

Curcumin's practical problem is that it barely dissolves and degrades in light and heat. Emulsion and spray-dried encapsulation systems built on gums address both. Whether a given ghatti-based system changes what reaches circulation depends entirely on the specific formulation, and should be measured rather than assumed.

The gum layer at the droplet surface acts as a partial barrier between the oil and dissolved oxygen and metal ions. That extends the point at which a fish oil beverage starts to smell like fish. It is stability engineering, not a nutritional interaction.

Gums are routinely used as the matrix that protects live organisms through drying and storage. Ghatti's film-forming behaviour makes it a candidate for that job. Whether the encapsulated cells survive gastric transit better is a property of the finished system, not of the gum on its own.

Human enzymes do not cleave the arabinogalactan backbone, so the gum arrives in the colon as fermentable substrate much as inulin does. Combined, they add to total fermentable load. That also means the gas and bloating add, which is the practical thing to watch when stacking soluble fibres.

Ghatti brings emulsifying capability at low viscosity, guar brings high viscosity with no interfacial activity. Formulators combine them because the properties are complementary rather than duplicated. The pairing is formulation convention.

Pectin contributes protein-protecting behaviour at low pH, ghatti contributes oil droplet stabilisation. Whether they cooperate or compete depends on charge and concentration, since anionic polysaccharides can also phase-separate from one another. This is a systems question, settled by trial in the specific product.

The gum's carboxyl groups interact with calcium and other divalent ions, and the raised viscosity slows everything reaching the absorptive surface. At the low use levels in a beverage this is unlikely to matter. At fibre-supplement levels taken with a mineral supplement, spacing them apart is reasonable caution.

Non-heme iron absorption is easily disturbed and viscous soluble fibre is one of the documented disturbers. Ghatti has not been singled out in that work, so this is a class inference. Taking an iron supplement away from a fibre dose costs nothing and removes the question.