If digestive enzymes were not present in the body, the breakdown of complex food molecules such as proteins, carbohydrates, and fats into smaller, absorbable molecules would not occur effectively. This would lead to several consequences:

• Large macromolecules from food would remain undigested because enzymes like proteases, amylases, and lipases are essential for breaking down proteins into amino acids, carbohydrates into simple sugars, and fats into fatty acids and glycerol, respectively

• Without this enzymatic breakdown, the body would be unable to absorb the nutrients through the intestinal lining, resulting in poor nutrient absorption and malnutrition despite food intake

• The lack of nutrient absorption would impair the body's ability to obtain energy, support growth, repair tissues, and perform vital functions

• Undigested food molecules could also cause gastrointestinal discomfort, irritation, and other digestive issues due to improper digestion

In summary, digestive enzymes are crucial for converting complex food molecules into smaller molecules that the body can absorb and utilize. Without them, digestion and nutrient absorption would be severely compromised, leading to nutritional deficiencies and health problems