Nutrition

Vitamin D & Calcium – A Healthy Bone Building Partnership (Part I)

Our team gets lots of questions about bone health, ranging from questions like “does soda decrease my bone strength?” To “how much calcium and Vitamin D are needed to maintain bone health?” In honor of National Nutrition Month, we want to share some interesting findings from new research being conducted around Vitamin D and Calcium and suggest few ways to get more of both in your diet, if you need them.

According to the National Institute of Arthritis and Musculoskeletal and Skin Disease, a division of the National Institute of Health, “low Calcium intake throughout life is associated with low bone mass and high fracture rates.” And while Calcium is critical in building bone health and density, Vitamin D is needed for the body to absorb this Calcium. According to findings from the CDC last year, about 1/3 of all Americans are deficient in Vitamin D. So if you’re looking for ways to boost your Calcium or Vitamin D intake, where should you start? Well, first, check out the latest recommendations on Calcium and Vitamin D intake from the Institute of Medicine:

Calcium & Vitamin D Recommendations

Then, after taking a look at your own diet as it compares to these recommendations, determine whether you need more or less of either Calcium or Vitamin D in your diet. If you need more of either, below we’ve listed some sources of both Calcium and Vitamin D.

Good Sources of Vitamin D

  • Sunlight
  • Supplements
  • Food
    • Cod Liver Oil
    • Fatty Fish (Swordfish, Salmon, Tuna, Mackerel)
    • Fortified Orange Juice or Milk
    • Eggs (Vitamin D is in the yolk)
    • Fortified Dairy Products & Cereals

Good Sources of Calcium:

  • Dairy Products
  • Fortified Cereals and Soy Beverages
  • Tofu
  • Spinach, Soy Beans, Beet Greens & Collards
  • White Beans

As is always the case, you should consult with your physician before changing your intake of any vitamin or nutrient, so make sure to discuss your bone health concerns with he or she at your next visit to get advice specific to your needs. If you have additional tips and ideas on Calcium, Vitamin D, or bone health, please leave them for us in the comments below!

Should I Eat Before, or After I Exercise?

exercise nutritionI myself have heard friends make unsupported claims that working out on an empty stomach is more effective, or that people should wait a certain amount of time after exercising to eat. Because I’ve been wondering whether it’s better to eat before or after I exercise, and more specifically, which foods I should be eating to support a physically active lifestyle, I reached out to our own Dr. Amadeus Mason to get answers to my questions. 

My first question for Dr. Mason was:  Do you recommend eating before or after a workout? Does your recommendation change whether the workout type is cardio-based or strength training?

Dr. Mason’s answer was extremely helpful, “Eating after exercise is pretty much the standard recommendation now. But what you’re eating is actually more important than when you eat it. For people who exercise often, high carbohydrates, moderate protein levels and increased fluid intake is important.” He noted though, that “carbs are the most important.”

After hearing this, I was curious. I typically like to avoid making my diet too heavy in carbohydrates, but I trust Dr. Mason and knew that he would help clarify this concern. So I asked, what is your daily recommendation for carbohydrate intake for people who work out regularly?

Again, Dr. Mason came through with some great answers, “I recommend 6-10 g/kg/day of carbohydrates.” Wait, I thought, ‘g/kg/day!? What does that even mean!?” G/kg/day is a reference to the grams of carbohydrates a person should intake daily, depending on their weight, in kilograms. I personally don’t know my weight in kg and I’m sure I’m not the only one. If you’re looking to calculate your personal ideal g/kg/day carbohydrate number, you can convert your body weight into kg here.

Once I understood that concept, Dr. Mason broke down the details on when I should be intaking these carbohydrates. “You should consume 1/5g/kg within 30 minutes of exercising and an additional 1.5g/kg within 2 hours of your workout. You should seek to consume remaining 3-7g/kg over the course of the day.”

That’s extremely helpful information. To keep your body functioning at peak performance and make your workouts more effective, it’s really not so much about whether you eat before or after you workout as it is about what you’re eating and how you’re breaking it up. One last cool tip from Dr. Mason? “Try high carbohydrate liquids too, such as chocolate milk, which is great for supporting workouts.”

Thanks Dr. Mason for helping me answer these questions for both my own workout practices and our readers!