Final answer:
To maintain adequate calcium intake without consuming lactose, Katrina should include dark green, leafy vegetables in her diet, which are high in calcium and suitable for those with lactose intolerance.
Step-by-step explanation:
Katrina, who is diagnosed with lactose intolerance, should include dark green, leafy vegetables in her diet to avoid a calcium deficiency. Milk and other dairy products, which are rich in calcium, contain lactose that can cause discomfort for individuals with lactose intolerance. Therefore, it is important to find alternative sources of calcium. Dark green leafy vegetables such as kale, bok choy, and spinach are excellent sources of this essential mineral. Other non-dairy sources include fortified plant-based milks, such as soy or almond milk, and other fortified foods, sesame seeds, almonds, and certain fish like salmon and sardines with bones.