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Which of the following is INCORRECT about cooking of food?
Makes it easier to digest
Results in the loss of certain nutrients
Destroys vitamin C easily
Destroys vitamin D easily
Destroys vitamin D easily
Cooking is a process that denatures proteins and softens cellulose, making food easier to digest. However, heat-sensitive nutrients like Vitamin C are easily destroyed, whereas Vitamin D is relatively heat-stable under normal cooking temperatures.
Cooking is a process that denatures proteins and softens cellulose, making food easier to digest. However, heat-sensitive nutrients like Vitamin C are easily destroyed, whereas Vitamin D is relatively heat-stable under normal cooking temperatures.
Think of Vitamin C as an ice cube that melts quickly when exposed to heat, while Vitamin D is more like a piece of chocolate that requires higher heat or more time to lose its original form.
C6тАЛH8тАЛO6тАЛheat/oxidationтАЛdegradation┬аproducts тАФ representing the thermal instability of Ascorbic Acid
Vitamin C (ascorbic acid) is water-soluble and highly susceptible to oxidation and thermal degradation at temperatures reached during boiling or frying. Vitamin D (calciferol), being fat-soluble and more robust, maintains its molecular integrity through most standard home cooking methods.
Water-soluble vitamins (C and B-complex) are more prone to loss during cooking.
Fat-soluble vitamins (A, D, E, K) are generally more resistant to heat.
Leaching occurs when vitamins dissolve into cooking water that is later discarded.
Denaturation of proteins improves bioavailability of amino acids.
Increases digestibility
Improves taste and texture
Eliminates harmful bacteria and parasites
Loss of heat-labile vitamins
Reduction in phytochemicals
Formation of Maillard reaction products at very high temperatures
Pasteurization
Steaming vs. Frying
Vitamin D is synthesized in the skin via UV light exposure, whereas dietary intake comes from fortified foods, fatty fish, and eggs.
Option A is correct because cooking denatures complex proteins, assisting enzymatic breakdown.
Option B is correct because water-soluble vitamins leach into cooking liquids.
Option C is correct because Vitamin C is the most heat-sensitive vitamin.
D is correct тАФ Vitamin D is fat-soluble and relatively heat-stable, meaning it is not easily destroyed by standard cooking processes.
Always remember the rule: 'B and C are for Boiling', as water-soluble vitamins are most likely to be lost in water-based cooking methods.
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