Citric Acid

Citric acid, also known as lemon acid, is one of the best natural sources of vitamin C. It’s made inside our cells through something called the "Krebs cycle." Fun fact: it was discovered by the Muslim chemist Jabir ibn Hayyan. You’ll find citric acid naturally in citrus fruits like lemons, oranges, pomelos, mandarins, tangerines, kamquats, grapefruits, and in other fruits like berries and strawberries.

Besides being a powerful antioxidant, citric acid has a sharp, tangy flavor that sometimes even tastes a bit salty. It’s used in all kinds of foods to preserve them and give them a unique taste. Plus, it’s great for cleaning dishes and polishing copper and metal items. When stored properly, citric acid can last for years without going bad.

How Is Citric Acid Used?

• It acts as an acidifying agent in foods like cheese, ice cream, and bread.
• Added to sodas to give that distinctive tangy flavor.
• Used in sour candies, creams, lollipops, toffee, and other sweets.
• Often used as a lemon juice substitute because it has a simpler flavor and can replace lemon when it’s not available.
• Helps keep fruits fresh and tasty when canned or preserved.
• Keeps the pH level balanced in preserved foods and stops bacteria from growing.
• Added to jams and pickles to boost flavor.
• Used as a salt alternative since it contains less sodium.
• Plays a role in many chemical reactions as a helper.
• Acts as an emulsifier for fats, especially in organic food production like cheese and ice cream.
• Helps milk curdle and thicken.
• Aids bones in absorbing calcium better.
• Helps your body absorb and digest various minerals.
• Prevents kidney stones and buildup in the urinary tract.

Possible Side Effects of Citric Acid

While it’s generally safe, some people might experience:

• Nausea and vomiting.
• Severe diarrhea, sometimes with blood or changes in stool color (red or black).
• Stomach problems.
• Swelling in limbs and tingling muscles.
• Feeling generally weak.
• Irregular or rapid heartbeat.
• Mood changes like anxiety, confusion, or trouble sleeping.
• Muscle spasms and numbness in hands or feet.
• Weight gain with swelling in different parts of the body.
• High blood pressure, which could cause complications like preeclampsia in pregnant women.