Haldi powder, also known as turmeric powder, is a spice made from the ground rhizomes of the turmeric plant (Curcuma longa). The main contents of haldi powder are:

1. Curcuminoids: A group of compounds with anti-inflammatory and antioxidant properties, responsible for the yellow color and medicinal properties.
2. Volatile oils: Aromatic compounds that contribute to the flavor and aroma.
3. Polysaccharides: Carbohydrates that provide fiber and texture.
4. Proteins: Contributing to the nutritional value.
5. Minerals: Like potassium, magnesium, and iron.
6. Fiber: Both soluble and insoluble fiber.
7. Moisture: A small amount, depending on the drying process.