Which of the following is true?

• A. You should carefully monitor vitamin C consumption because you can easily ingest toxic quantities.
• B. You need to eat citrus fruits (e.g. limes, lemons, oranges) every day to avoid vitamin C deficiency.
• C. Vitamin C is a protein that is converted into collagen once it has been digested & absorbed.
• D. Eating a wide variety of fruit & vegetables will ensure you meet your daily vitamin C requirements.

Answer: (D)

Verified step by step guidance

1. Understand the role of vitamin C in the body: Vitamin C is a water-soluble vitamin essential for collagen synthesis, immune function, and as an antioxidant. It is not a protein and does not convert into collagen but supports its production.
2. Evaluate the claim about toxicity: Vitamin C is water-soluble, meaning excess amounts are excreted in urine, making toxicity from dietary sources rare. However, extremely high supplemental doses may cause side effects like gastrointestinal discomfort.
3. Assess the necessity of daily citrus fruit consumption: While citrus fruits are rich in vitamin C, other fruits and vegetables (e.g., bell peppers, strawberries, broccoli) also provide sufficient amounts. A varied diet can meet daily requirements without exclusive reliance on citrus fruits.
4. Clarify the misconception about vitamin C as a protein: Vitamin C is a vitamin, not a protein. It acts as a cofactor in enzymatic reactions for collagen synthesis but is not converted into collagen itself.
5. Conclude with the correct statement: Eating a wide variety of fruits and vegetables ensures adequate vitamin C intake, as they collectively provide sufficient amounts of this nutrient to meet daily needs.