Tapioca

Tapioca is the purified starch extracted from cassava roots through washing, rasping, separation, and drying. As a refined starch, it mainly provides carbohydrate energy and very little in the way of protein, fiber, or micronutrients. It is widely used as a neutral, gluten‑free thickener that creates clear gels and chew, and related starch substances are affirmed as GRAS in the U.S. Gluten‑free status is recognized by FDA labeling rules when products meet contamination limits. In short, it is a functional texture ingredient rather than a nutrient source. Most safety concerns trace back to cassava processing and supply‑chain controls rather than the starch itself. Cassava contains cyanogenic glycosides that can release cyanide; EFSA set an acute reference dose, and proper processing removes these compounds before starch is sold. Some starch processors use sodium metabisulfite during wet storage; sulfite‑sensitive people may need to verify labeling. Separate from intrinsic starch safety, several boba products have tested high for lead, likely due to contaminated ingredients or equipment—so brand selection matters. Because it is a refined starch, large amounts can add substantial rapidly digestible carbohydrates to a meal, which some people may wish to moderate.