When we are suffering from acidity, which of the following should be consumed? 

Antacids

The correct answer is option 4. Antacids.

When someone experiences acidity, it often involves an excess of stomach acid, leading to symptoms like heartburn, indigestion, or a sour taste in the mouth. Antacids are medications that help neutralize stomach acid, providing relief from these symptoms.

Antacids typically contain compounds such as calcium carbonate, magnesium hydroxide, or aluminum hydroxide. These substances react with excess stomach acid, forming neutral products and reducing the acidity in the stomach.

Here is how antacids work:

1. Neutralization: The active ingredients in antacids react with the excess stomach acid, neutralizing it. The chemical reaction results in the formation of water and a salt.

2. Reduced Acidity:  By neutralizing the stomach acid, antacids help reduce the overall acidity in the stomach, providing relief from symptoms like heartburn.

3. Quick Relief: Antacids are known for providing relatively quick relief compared to some other medications that target acid production.

It's important to note that while antacids can be effective for short-term relief, they do not address the root cause of acidity and may not be suitable for long-term use without medical supervision. If symptoms persist or worsen, it's advisable to consult a healthcare professional for proper diagnosis and treatment. Additionally, other lifestyle and dietary changes may be recommended to manage acidity in the long term.