Calcium Beta-hydroxybutyrate powder, or Calcium BHB, by BulkSupplements.com is one of the selections of dietary supplements. Beta-hydroxybutyrate is one of the ketones in the body that acts as a energy source under any diet. Each serving of this product contains 1500mg which is about 1/2 tsp, and may need a gram scale to measure. Contents of this product is sold by weight, not volume and settling may occur. And, we also sell it different sizes ranging from 100g to 5kg in resealable bags. Our Calcium BHB powder, an exogenous ketones, is pure, clean, and does not contain any fillers, additives and artificial flavors. And this BHB supplement, or Calcium BHB Salts, is dairy free, soy free, yeast free, no added sugar. All products by BulkSupplements.com are manufactured according to cGMP Standards to ensure the highest quality for manufacturing, packaging, labeling, and holding operations. We work with a third-party laboratory that test our products at multiple stages during production, from raw material to finished products, and ensures compliance, standards, and consistency.