Final answer:
Contemporary diets often include significant amounts of protein and calcium, and while a high-protein diet can increase calcium absorption, balance is key to avoid potential negative health impacts such as osteoporosis.
Step-by-step explanation:
The statement 'Overall we eat more protein and calcium today than ever before' can be challenging to declare as purely true or false without specific historical consumption data for comparison. However, contemporary diets often include a significant amount of protein and calcium, due in part to the availability of dietary supplements and fortified foods. Diets high in protein can increase the absorption of calcium, as amino acids present in proteins enhance calcium solubility and absorption. Calcium is essential for bone health, and the recommended daily amount for females aged 11-14 years is 1,200 milligrams. It's important to balance protein intake with calcium consumption to support optimal bone health and avoid potential issues like osteoporosis, which has been associated in some cases with excessive protein intake and calcium leaching.