Is magnesium gluconate vegan?

Magnesium gluconate is the magnesium salt of gluconic acid, utilized primarily as a mineral supplement, acidity regulator, and firming agent. Manufacturers produce this compound by neutralizing gluconic acid with a mineral base such as magnesium carbonate or magnesium hydroxide. The gluconic acid itself is typically derived through the aerobic fermentation of glucose, a sugar obtained from plant starches like corn, using microbial cultures such as the fungus Aspergillus niger. Magnesium gluconate commonly appears on ingredient labels for dietary supplement tablets, fortified beverages, energy drinks, and certain processed foods.

This ingredient receives a vegan verdict because its production relies entirely on mineral, plant, and microbial sources. The starting carbohydrates are harvested from botanical sources, the conversion occurs via microbial fermentation, and the neutralizing agents come from mined or synthetic mineral compounds. Because no animal-derived raw materials, processing aids, or animal tissues are involved in its synthesis, magnesium gluconate is suitable for a vegan diet.