Which vitamin is described as heat-stable and not easily oxidized?

Which vitamin is described as heat-stable and not easily oxidized?

• A. Vitamin A
• B. Vitamin D
• C. Vitamin E
• D. Vitamin K

Answer: (B)

When we consider vitamin stability during cooking and processing, some vitamins hold up to heat and air better than others. Vitamin D is known for its resilience to both heat and oxidation, so its activity isn’t easily lost during typical cooking or storage. This makes it the best fit for the description of being heat-stable and not easily oxidized. Other fat-soluble vitamins don’t share that level of resistance: Vitamin A tends to degrade and oxidize with heat and light; Vitamin E can be damaged by heat despite its role as an antioxidant; and Vitamin K can also be affected by processing, though it isn’t described as as resistant as Vitamin D.

When we consider vitamin stability during cooking and processing, some vitamins hold up to heat and air better than others. Vitamin D is known for its resilience to both heat and oxidation, so its activity isn’t easily lost during typical cooking or storage. This makes it the best fit for the description of being heat-stable and not easily oxidized.

Other fat-soluble vitamins don’t share that level of resistance: Vitamin A tends to degrade and oxidize with heat and light; Vitamin E can be damaged by heat despite its role as an antioxidant; and Vitamin K can also be affected by processing, though it isn’t described as as resistant as Vitamin D.