The main mineralocorticoid in human is

Options

A. Aldosterone
B. Cortisol
C. Testosterone
D. Progesterone.

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks for the main mineralocorticoid in humans.

2. **Understand Mineralocorticoids**: Mineralocorticoids are a class of steroid hormones that are primarily involved in the regulation of electrolyte and water balance in the body.

3. **Consider the Options**: The options given are:
- Aldosterone
- Cortisol
- Testosterone
- Progesterone

4. **Analyze Each Option**:
- **Aldosterone**: This is a mineralocorticoid hormone secreted by the adrenal glands. It plays a crucial role in maintaining electrolyte balance by reducing sodium loss in urine.
- **Cortisol**: This is a glucocorticoid hormone, not a mineralocorticoid. It regulates carbohydrate metabolism and has different functions.
- **Testosterone**: This is a male sex hormone produced in the testes and is not classified as a mineralocorticoid.
- **Progesterone**: This is a steroid hormone involved in the menstrual cycle and pregnancy, but it is not a mineralocorticoid.

5. **Conclusion**: Based on the analysis, the main mineralocorticoid in humans is **aldosterone**.

**Final Answer**: Aldosterone

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