Metabolic Factors Limiting Performance in Marathon Runners

Proof that carbs are the body's best source of fuel. Coming soon - my summary of the article!

Food & Wine

Although I am not Catholic and my Lutheran roots never encouraged me to subscribe in the Lentin food suggestions, I decided this year, now that I am married to a Hindu man, I should! I have challenged myself to abstain from meat on Fridays. So far so good. Last week my Friday went pretty well:

Breakfast - Mesa Sunrise cereal with berries, 1/4 grapefruit + half a banana and peanut butter

After swimming snack - Larabar + plain yogurt and kiwi

Lunch - I had a giant salad with a Sunshine Southwest patty (which uses sunflower seeds instead of soy as the protein source), peas, cottage cheese, beets, and a slice of Breads from Anna and almond butter for lunch

Snack - decaf latte from Starbucks & mini apple

Dinner - My famous char topped with mango salsa paired for dinner with lemony, garlic baked mini artichokes, black rice, sauteed kale and garbanzo beans.

For this week, I hope to use some recipes from this month's edition of Food & Wine Magazine. Maybe because it's National Nutrition Month? Although I doubt it, I was inspired by the quality and quantity of their articles. I especially enjoyed the humorous account of one food lover attempting to chew his food more thoroughly. His idea is backed by scientific research that thorough chewing 1) aids in digestion, making food more absorbable, 2) slows down the eating process allowing fullness cues to reach the brain, and 3) helps us enjoy our food more by tasting and sensing bits of it we might otherwise miss. I myself have even tried chewing my oatmeal, rice, beans, and cottage cheese more this week. To my surprise, I usually swallow before the food even hits my tongue!

Not usually known for their collection of healthy recipes, March F&W is packed with clean and even vegetarian options. For a relaxing, Lent-friendly Friday in the near future, I am especially excited for Spelt Foccacia with Kale, Squash and Pecorino. Spelt is a grain similar in taste to wheat but with a slightly higher protein content. Sophie Dahl, granddaughter of author Roald Dahl, shares recipes from her new boo. When a group of chefs were asked to lighten their meals, Quinoa Stuffed Squash came to be. I cannot say enough good things about the quick-cooking, essential amino acid touting, fluffy grain quinoa! Share your own vegetarian/Lent creations!

Turkey Time

I made a delicious, moist black bean turkey burger this evening. The black beans kept this super lean patty moist and flavorful, plus added fiber and stretched my food dollar. The recipe made enough for 2 dinners (1 burger for me, 2 for the husband!) and 2 lunches of leftovers (1 burger each). You can see that using ground turkey is worth its savings in fat and calories. Although we need unsaturated fat to help our brain develop, protect the heart, reduce inflammation, and keep us full and satisfied, saturated fat is not necessary, especially post-workout. Where protein and carbohydrates aid in recovery, a high fat meal will does nothing but replace protein and carb calories, thus slowing recovery. Adding nutrient dense black beans also packs the burger with complex carbohydrates. High in fiber, B vitamins (which aid in the conversion of carbohydrates into energy and the breakdown of protein), and magnesium (helping reduce muscle cramps), black beans also contain the amino acid tryptophan. Tryptophan is a precursor to the neurotransmitter serotonin, which is a natural mood enhancer and stabilizer.

4 ounce serving	Calories	Fat (grams)
Ground Beef (80/20)	240	17
Lean Ground Beef (93/7)	170	8
Ground Turkey**	160	8

**Look for lean ground turkey. Not all ground turkey is created equally - just as ground beef comes in different fat content, so does ground turkey. Sometimes the entire turkey, dark meat and skin, can be mixed in, boosting saturated fat content.

• Black Bean Turkey Burgers
• 
  
• 1 lb. lean ground turkey
• 1 can black beans, drained and rinsed
• 1 egg white
• 1 Tbls. Worcestershire sauce
• 2 cloves roasted garlic
• 1/2 tsp. cayenne pepper
• 1/2 tsp. ground ginger
• 1/2 tsp. cumin
• salt and pepper to taste
• 1 egg white
• 1/2 -3/4 cup bread crumbs (I used 2-day old Whole Foods wheat-free rye)
  
• 1/2 cup red onion
• 2 ounces brie cheese (optional) **
  

1. Preheat the oven to 375 degrees.
   
2. Coarsely chop the onion and add it to the food processor with the turkey, drained beans, seasoning, egg white, bread crumbs, and garlic.
3. Blend until ingredients are evenly distributed.
4. Divide turkey into 10 patties. Place the chunks of brie cheese on half the patties. Top one patty with the other, covering the cheese.
   
5. Grill 5 minutes each side. Finish them off in the oven for 8 minutes or until cooked through.
6. Enjoy with green beans and home-made potato salad. Consider using plain yogurt to substitute some of the mayo in your potato salad. I added a ton of dill, celery, peas, onion, mustard, hot sauce, and salt and pepper to mine.
   

**It is easier to find a part-skim feta or Swiss, which would also fit the flavor profile of this recipe. Can't find 2% or part-skim? Use less or omit the cheese, especially post-workout.

Arctic Char Recipe

This recipe is one of my favorites and was pictured in the blog 2 days ago. It works well with salmon or with a lighter fish, char. Char is usually about $1 less expensive per pound at whole foods. It has a less fishy taste.

2# fresh artic char
1/4 cup orange juice
2 tsp thyme
2 T extra virgin olive oil
1 T brown sugar
1 T smoked paprika **I found a Spanish version at Whole Foods. It is my favorite spice in the cabinet adding a bunch of smokey flavor and a little heat. It tastes much different than traditioinal paprika, so it is worth looking for.
1 tsp grated orange peel
1/2 tsp sea salt

1. Heat oven to 400 degrees. Mix OJ, EVOO, and 1 tsp thyme in bowl. Place char in glass dish and cover with orange juice mixture, turning the fish to coat it. Cover and refrigerate for 30 minutes or overnight.
2. Mix sugar, paprkika, grated orange peel, sea salt, and the rest of the thyme in another bowl. Remove char from marinade and place on greased, lined baking pan.Rub top of char evenly with dry mixture.
3. Roast char 10-12 minutes or until fish flakes easily with fork. Serves 8.
   
   ***I have made the recipe two ways - leaving the marinade to cook with the fish or removing it. I have also cooked the fish stovetop and it turns out great. Just do about 3-5 minutes per side, depending on how you like your fish cooked.

Frontloading - Day 1

My goal after attending the sports nutrition conference is to "frontload" my food. I already eat 2 - 3 snacks plus 3 meals, but I will attempt to add more to breakfast and snacks so that I have more energy while running and throughout the day, which is when we all need it.

Breakfast - 1.5 cup Nature's Path Mesa Sunrise, 3/4 cup light soy milk, 1 cup frozen berries, 1/2 cup cottage cheese, 1/4 grapefruit (the addition to one of my normal breakfasts)[389 kcals]

Snack - 2 clementines, KIND bar, part-skim string cheese (normally just a KIND bar)[350 kcals]Lunch - 1 silce whole rye bread, guacamole (1/4 avocado mixed with cilantro, chopped tomato, and Greek yogurt), 2 ounces turkey, spring mix, peppers, cucumber + 1 cup carrots with guacamole and 1 T almond butter, 1 cup soy crisps (the addition), 1 Hershey's dark chocolate kiss [493 kcals]

Snack - 1 large banana + almond butter [172 kcal]

Workout (10 miles - 1 mile Tempo, 2x2 mile Tempo, 1 mile Tempo) - Felt great! Not hungry until the cool down and still had enough energy to make dinner. Didn't hit a low during the workout.

Recovery - 1 glass soymilk [70kcal]

Dinner (see picture to the left) - 5 ounces arctic char (recipe to follow), 1 cup garlic broccoli, 5 sundried tomato polenta rounds, 1 Hershey's almond kiss [509 kcal]

=1,983 calories (67 grams fat, 254 g CHOs, 102 g protein, 40 grams fiber)

I need to keep working on it - more calories!

Vitamin D and Winter Running

Vitamin D is a fat-soluble vitamin necessary for the absorption of calcium. Therefore, vitamin D is essential for bone health as well as immune function, lowering risk or chronic disease, reduction in inflammation, and brain function and mood. Vitamin D deficiency has also been linked to depression (2). Vitamin D supplementation is by no means a cure-all for depression, but evidence is showing a correlation. Therapeutic supplementation of vitamin D (100,000 IUs) improved depression more than sun lamps in one population.

There are two sources of vitamin D - the food we eat and sunshine. Unfortunately, sufficient vitamin D it is difficult to obtain from either of these two sources. Very few foods naturally contain vitamin D although some are fortified (i.e. milk). Absorption of vitamin D from the sun depends on relative distance to the sun. Even 40% of Louisiana distance runners tested had low serum (blood) vitamin D levels (1). Darker skin tones as well as sunscreen also prevent absorption.

600 - 1000 IU of vitamin D3 (the active form of vitamin D) is recommended per day, especially during the darker months of winter. You can also bump up intake of fortified dairy (milk and yogurt), salmon and tuna (canned with bones has even more), sardines, mushrooms, and containing smaller amounts, eggs.

Symptoms of vitamin D deficiency may be hard for us to notice - they include bone and muscle pain and weakness. Not sure about the rest of you, but that is a daily occurence for me. Ask your doctor to check you vitamin D levels - 25 (OH) D specifically - next time you have a physical. Not scheduled for a physical? Not a bad idea to give the doc a call. While you are in, have them look at your iron before ramping up training for the spring season.

(1) Willis. Int'l J Sports Nutr 2008; 18: 204-225.

(2) Hoogendijik, WJ et al. Depression is associated with decreased 25-hydroxyvitamin D and increased parathyroid hormone levels in older adults. Arch Gen Psychiatry. 2008; 65(5): 508-512.

Follow that Blog

Alyssa gave me a heads up about a blog she reads.

The Science of Sport is written by two exercise science PhDs with interests in cycling, running, swimming, etc. Their current feature is on weight loss. I had my two cents to offer on their calories in vs calories out discussion.

After attending a nutrition conference hosted by Nancy Clark, MS, RD, and Bill Evans, PhD, this past weekend, my theories of weight loss, especially as it relates to athletes, have been confirmed with research. In a nut shell (raw and unsalted - lol), here are the concepts:

• There are huge benefits of pre-exercise fuel. A 1999 study measured how long bikers could pedal until they reached exhaustion. With the addition of a 400 calorie pre-exercise meal eaten 3 hours before the workout, athletes biked 27 minutes longer. Another study had participants eat 5 minutes before exercise and results were similar. Those who had breakfast 4 hours before, then a snack 5 minutes before biking improved 20% during the last 15 minutes when compared to only water. A 10% improvement was seen with just the 5 minute snack. Lesson learned: eat before you workout. You can train your intestinal tract.
• Diet while you sleep - Front load calories by eating a larger, balanced breakfast and having multiple snacks throughout the day that contain carbs, healthy fats, and protein. Diet at dinner. This way, you can use the energy (calories) throughout the day for training and every day activities. Chances are, you will be able to control portions at dinner, make healthier food choices, and run/bike/swim faster and harder. If your goal is weight loss, you will lose weight this way! Have you ever found yourself trying to eat "healthy" or "less" by starting off the day with a light breakfast, eating a small lunch, and by the time dinner comes around (especially post-workout), you are ravenous and blow the healthy eating resolution. And then there is the post-dinner snack. I'm going to guess it is not Greek yogurt with fruit but more likely a bag of M&Ms...Front-load your calories for success and energy.
• Don't get too hungry. You will tend to crave sweets and overeat. This goes hand in hand with the above statement but more emphasis is placed on snacks. Most people need to eat every 3-4 hours for blood sugar balance and to keep the metabolism running smoothly. High performing athletes may need to eat every 2-3 hours. I already have been eating this way, but my goal for the week is to have a bigger breakfast and bigger snacks in hopes of having more energy on my run. I will blog about my experience and we can see how dinner is affected.
• Many athletes trying to lose weight, especially woman, end up undereating. Most female athletes calorie needs are around 2,000-2,400 calories depending on that day of activity and their body size. If instead they consume 1500 calories in attempt to lose weight, the body will switch over to starvation mode and conserve energy. Thanks to evolution, the body is programmed to be efficient with calorie burning; if enough isn't going in, the metabolism down regulates and holds on to everything it can. Moral of the story - eat to lose weight. Don't be afraid. It really works. Plus, what a great diet secret: eating = weight loss**.
• ***The saying a calorie is a calorie is a calorie is not true. After a workout, it is important to refuel within the first half hour. During this time, muscles are more responsive to insulin. We need insulin to help our cells take up glucose (to replenish glycogen reserves) and amino acids (from protein, for growth and repair). Therefore eating a balanced snack with the proposed 4:1 ratio is important. Nancy's suggested recovery snack is milk or chocolate milk. If you can tolerate the lactose, milk has a natural balance of carbs (in the form of lactose which is a natural sugar) and protein (8 grams per 8 ounce serving).
• Fat and weight gain go hand in hand and do not help with recovery. Studies show that it takes 5 times as many calories to produce the same amount of weight gain with mixed compared to a high fat diet. Next time you consider stopping at Wendy's after a long run, think about your actions. That high fat burger with cheese and frosty will not help you recover but will help you negate the effect of the workout. It will also affect your appetite for your next meal and you will not meet nutrient requirements. Thus, calories from fat are different from calories from protein and carbohydrates.
• Carbohydrate calories are not treated the same either. Research shows that lipogenesis (new fat production) does not form after glucose ingestion but fructose is stored as fat. That means high fructose corn syrup may be contributing to our country's obesity epidemic and our own waist line struggles. Scientists think it has something to do with the metabolism of fructose, which must first pass through the liver in order for it to be converted to glucose.

Lots of good stuff. For more good stuff, pick up Nancy's book. She was one of the first sports dietitian's in the field and an expert on the material.

Schabort, Noakes. Med Sci Sports Exer 31 (3):464, 1999.