GUUDIES Journal

Gummies, capsules, tablets or powders? The chemical form of a nutrient matters more than the format. A sourced UK comparison, including joint supplements.

Large plastic tubs, scoops and shakers have dominated supplements for decades. What that format costs you in packaging, in price, and in whether you finish the tub.

B12 comes from bacteria, not plants or animals. Why spirulina and mushrooms do not count, why deficiency takes years to show, and the three other nutrients worth watching.

Cholecalciferol, bisglycinate, menaquinone. The words in brackets are the most useful part of any supplement label, and they tell you which version you are actually buying.

How to choose the best vitamin D supplement in the UK: D3 vs D2, the NHS 10µg advice, IU vs micrograms, the 100µg upper limit, and gummies vs tablets vs sprays.

An honest answer from a company that sells them: what the NHS actually advises on vitamin D, folic acid and B12, when a multivitamin is a reasonable hedge, and when you can skip it.