Unlocking the Secrets to Strong Bones
Bone health is the foundation of a vibrant life, and understanding it is key to preserving the strength and integrity of our skeletons. Let's dive into the essentials:
Building Strong Bones
Our bone mass is like a lifelong savings account, with deposits made during childhood and peaking in our mid-20s to early 30s. However, for women, things change around age 40, with bone mass slowly declining and taking a more dramatic dip after menopause. Some other risk factors include body weight (small build), race (higher risk for white and Asian descent), medications, family history, and lifestyle. Click for more information on risk factors. Men can face these challenges too, although it's less common due to their larger skeletons and slower onset of bone loss.
The Calcium Connection
Calcium is often hailed as the poster child for bone health. But here's the twist: our bodies are calcium-savvy when it comes to food but not always with supplements. Excessive calcium, usually from supplements, can lead to complications like constipation and kidney stones. What you eat matters too. The absorption of calcium into our bodies (bioavailability) differs among foods. For instance Kale reigns supreme with a 40.9% calcium absorption rate, leaving milk (32.1%) and calcium-rich spinach (5%) trailing behind. That means more calcium from kale gets absorbed than milk, while spinach has a low absorption rate. See oxalates and phytates section below for more information.
Beyond Calcium
Bone health isn't just about calcium; it's a team effort. Phosphorus, magnesium, vitamin D, potassium, vitamin C, and vitamin K all play vital roles in maintaining healthy bones.
Lifestyle Matters
Eating right is only part of the equation. Resistance and weight-bearing activities are your bone's best friends, helping you build and maintain their strength. On the flip side, unhealthy habits like smoking, excessive alcohol intake, and a high-sodium diet can weaken your bones.
A Holistic Approach
Recommended Daily Allowance for Calcium
Females and males over age 70: 1200 mg
Females ages 51-70: 1200 mg
Males ages 51-70: 1000 mg
Females and males ages 19-50: 1000 mg
Females and males ages 14-18: 1300 mg