Questions: Excessive consumption of fruit juice in infants and young children can lead to all of the following except: diarrhea. excessive kcal intake. poor intake of food. toxicity of the water-soluble vitamins.

The answer is the last one: toxicity of the water-soluble vitamins.

Explanation for each option:

1. Diarrhea: Excessive consumption of fruit juice can lead to diarrhea in infants and young children due to the high sugar content and the presence of sorbitol, a sugar alcohol that can have a laxative effect.

2. Excessive kcal intake: Fruit juice is high in calories and sugar, which can contribute to excessive calorie intake if consumed in large amounts, potentially leading to weight gain and other health issues.

3. Poor intake of food: Drinking too much fruit juice can lead to a decreased appetite for more nutritious foods, as children may feel full from the juice, which lacks the fiber and nutrients found in whole fruits and other foods.

4. Toxicity of the water-soluble vitamins: Water-soluble vitamins, such as vitamin C and the B vitamins, are generally not toxic because they are excreted in the urine when consumed in excess. Therefore, excessive fruit juice consumption is unlikely to cause toxicity of these vitamins.

In summary, while excessive fruit juice consumption can lead to diarrhea, excessive calorie intake, and poor intake of other foods, it is unlikely to cause toxicity of water-soluble vitamins.