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Scientifically Sound. Empirically Driven.

Five tips to get your child to eat more fruits & veggies

4/6/2021

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Kids are picky eaters. I think most parents would agree with that statement. As a father of two children, ages 1 and 3, I know this for a fact! Our parental instinct tells us to force them into eating their fruits and vegetables, but this can backfire down the road.
 
Children are in a unique life stage as the habits they form throughout their childhood will continue into adulthood. Poor dietary choices may contribute to obesity and the risk for chronic disease. Because children depend entirely on their parents for their food intake, it's crucial to establish healthy eating behaviors now.
 
Children have extraordinary energy and nutrition needs based on their age, activity levels, and stage of growth and development. According to the most recent Dietary Guidelines for Americans, 2020-2025, children between the ages of two and six require about 1 to 1.5 servings of fruits and the same amount for vegetables. A serving is defined as a cup equivalent per day. Therefore, 1.5 servings of fruit translate to 1.5 cups.
 
Current intakes in American children, ages 2 through 6, fall short of recommendations. Both boys and girls consume less than 1 cup of vegetables per day. Not surprisingly, fruit intake is higher for both genders, but it still falls short for older children (e.g., ages 5-6). Kids tend to have a palate for sweeter things, and since veggies are generally more bitter, they will shy away from them and gravitate towards fruits. Fortunately, applying a few simple tips can come a long way in getting your picky eater to consume more veggies and fruits.
 
Tip #1: Every child has their favorite dish – mac-&-cheese, pizza, cheeseburgers, or spaghetti and meatballs. Incorporating fruits and vegetables into your child's favorite dishes is a sure way to get them to increase their intakes of these nutrient powerhouses. For example, broccoli can be finely diced and cooked into the mac-&-cheese, spinach can become a second topping on pepperoni pizza, and tomato sauce makes a great meatball topping.  
 
Tip #2: If your child is extremely picky, even with their fruit intake, introduce them to fruit juices. Fruit juice counts as a serving of fruit, but it should not replace their fruit intake entirely. Some fruit juice varieties contain both fruits and vegetables. To ensure your child gets adequate fiber, limit fruit juice to 1 to 2 servings per day.
 
Tip #3: Children love to be in charge. The next time you take a trip to the grocery store, have them choose a vegetable or fruit they're open to trying. When you get home, try the new fruit or veggie with them—modeling good behavior before your child reinforces positive habits.
 
Tip #4: Get creative with the way you prepare vegetables. Raw vegetables may not be so enticing for children, but pair them with a ranch dip, and it changes everything! Perhaps raw broccoli florets aren't your kid's cup of tea. Try steaming them instead and top it with some cheddar cheese. What about incorporating vegetables into soups or sauces? There are plenty of ways that parents can "hide" veggies in their kid's dishes.
 
Tip #5: Lastly, try getting your kids involved in the cooking process. My wife always says she enjoys food more when it's made by someone else other than her. I believe children are the complete opposite. For some reason, they tend to enjoy the food they made themselves and are more likely to eat a vegetable if they cooked it. Cooking would also be an excellent opportunity to teach them about healthy eating while making a mess in the kitchen and having fun while they're at it.
 
Remember, this is going to be a slow process, so be patient. Don't overwhelm yourself and your child by throwing all these tips at once at them. Choose one or two to work on and make it a habit. More importantly, be a good role model for them. Your child is more likely to eat vegetables if they see you doing it too.  
 
References
  1. Home: Dietary Guidelines for Americans. Home | Dietary Guidelines for Americans. https://www.dietaryguidelines.gov/. Accessed April 5, 2021.
  2. About The Buzz: Picky Eaters. Have A Plant. https://fruitsandveggies.org/stories/atb-for-071510/. Accessed April 5, 2021.
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The Ultimate Guide for Lifting After 40

10/15/2020

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This article was originally published in Generation Iron. Click here to read the full article. 
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The Big Fat Keto Diet Fail

2/13/2019

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This article was originally published in T-Nation. Click here to read the full article.  
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Supplements that actually work: Creatine

12/6/2018

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Creatine remains the most researched ergogenic aid that exists today. Well over 1,000 peer-reviewed studies have been dedicated to creatine supplementation. Some of the purported benefits of creatine supplementation include an increase in muscle creatine stores, improved exercise and training adaptations, and potential medical uses for clinical populations. 

What exactly is creatine? 
Creatine is a nitrogen-containing compound found primarily in skeletal muscle. About 95% is found in muscle and the rest is found in the brain and testes. About half of the body's creatine stores is synthesized by the liver, kidneys, and to a lesser extent the pancreas, via the amino acids glycine, arginine, and methionine. The remaining creatine is obtained from the diet, primarily from animal sources such as meat and fish. An average 155 lb. individual may carry somewhere between 120-140g of creatine in their muscles. 

How does creatine work?
Creatine supplementation, usually in the form of creatine monohydrate, is popular amongst athletes and recreational lifters. The goal of creatine supplementation is to saturate the muscles with phosphocreatine and free creatine in order to delay fatigue during short-duration, high-intensity exercise. But how exactly does it do this? Well, without getting too technical, phosphocreatine lends its phosphate (Pi) group to regenerate ADP (Adenosine Diphosphate) into ATP (Adenosine Triphosphate), the energy currency of the cell. Without ATP, muscle contraction simply cannot continue. When muscles are working at a high rate (such as sprinting), creatine stores become depleted, consequently, lowering the rate of ATP re-synthesis. By saturating creatine stores through supplementation, one can prolong high-intensity, short duration exercise. 

Several studies have recorded the positive effects of creatine supplementation on exercise performance, with the majority indicating that creatine supplementation has a statistically significant improvement in exercise capacity. I won't link references to all these studies, but instead encourage a simple search on PubMed. 

Here's a list of potential benefits of creatine supplementation: 
  • Increased muscle mass and strength 
  • Increased single and repetitive sprint performance 
  • Enhanced glycogen synthesis 
  • Increased work capacity 
  • Enhanced recovery 
  • Greater training tolerance 
  • Potential enhancement of aerobic capacity via greater shuttling of ATP from mitochondria and buffering of acidity 
  • Potential therapeutic uses 

What about side effects?
The only side effect that has been consistently reported in the scientific and medical literature has been weight gain (in the form of lean mass). Although creatine supplementation has been linked to gastrointestinal distress, muscle cramping, dehydration, increased muscle injury risk, and even concerns for renal stress; recent evidence indicates that creatine is not associated with any of these anecdotally reported issues. 

How should you take creatine?
It should go without saying that anyone who wishes to supplement should consult with their physician before doing so. Creatine monohydrate has been shown through several studies to be the superior form of creatine. Therefore, a high-quality, pharmaceutical grade, creatine monohydrate should be favored.

The most rapid way to increase muscle creatine stores is through the use of a loading method. To load, take 0.3g per kilogram per day for 5-7 days. Using an example of a 155 lb. individual, this would equate to about 21g of creatine monohydrate. Studies have shown that this loading protocol can increase muscle creatine stores by 20-40%. Once creatine stores are saturated (following loading phase), a maintenance dose of 3-5g of creatine monohydrate per day will suffice at maintaining elevated stores.

Moreover, because creatine uptake is mediated by the hormone insulin, it is recommended to take creatine monohydrate with a carbohydrate containing drink (e.g., juice). Additionally, creatine ingestion is favorable post-exercise with the co-ingestion of a carbohydrate/protein drink. 

References 
Butts, J., Jacobs, B. and Silvis, M. (2018). Creatine use in sports. Sports Health. Jan-Feb; 10(1): 31-31. Published online 2017 Oct 23. don: 10.1177/1941738117737248

Kreider, R. B., Kalman, D. S., Antonio, J., Ziegenfuss, T. N., Wildman, R., Collins, R., Candrow, D. G., Kleiner, S. M., Almada, A. L., ... Lopez, H. L. (2017). International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. Journal of the International Society of Sports Nutrition, 14, 18. doi:10.1186/s12970-017-0173-z



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The Ultimate Minimalist Training Plan

11/29/2018

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This article was originally published in T-Nation. Click here to read the full article. 
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Top 3 Exercises for Massive Glutes

11/28/2018

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Nothing turns more heads than a big, muscular backside. That’s because the gluteus maximus is the largest muscle in the human body, and rightly so, as it must be strong enough to keep the trunk erect and act as a powerful hip extensor. Everyday tasks such as standing, walking, and climbing stairs are all aided by the gluteal muscles. These three exercises will turn any pancake butt into a seam-ripping glory. 

Trap Bar Deadlift 
The main function of the gluteal muscles is to extend the hip. So when one thinks about powerful hip extension exercises, the conventional deadlift comes to mind. However, I prefer the trap bar deadlift for a couple of reasons. First, the trap bar deadlift places less demands on the spine. The hexagonal shape distributes the weight closer to your center of gravity, which means less stress on your spine compared to a traditional deadlift. Second, the trap bar deadlift is easier to master, making it an ideal choice for beginners. In addition, most trap bars come with a set of high handles which allow people with insufficient range of motion in the hips to deadlift with immaculate form. And finally, it’s virtually similar to the conventional deadlift. Contrary to popular belief, the trap bar deadlift places twice the demands on the hip extensors (glutes and hamstrings) compared to the quads and is more similar to the traditional deadlift than the squat as far as joint ranges of motion [1]. And since the bar isn’t directly in front of you like a regular deadlift, you can push the hips further back to emulate the position of a conventional deadlift. 

To perform the trap bar deadlift, begin by stepping inside the hexagonal bar and aligning your mid-foot with the sleeves of the bar. For a more hip-dominant deadlift, drive the hips further back, while slightly bending at the knees. Grab the bar where the wrists align with the sleeves. Arch your back and retract your shoulder blades back and down. Grab a big belly breath and brace your core. Drive through the heels and completely extend the hips, contracting your glutes hard at the top. Return to the starting position without breaking form. This movement is best trained heavy, so begin with sets of 5-8 reps. 

Double Band Hip Thrust 
The barbell hip thrust deserves a place on this list, but I prefer the double band hip thrust. First, band resistance increases towards the end range of motion, or top of the movement, where the glutes activate the highest. And second, placing a smaller band around the knees increases maximum voluntary isometric contraction of the gluteus medius by forcing you to drive the knees out. 

To perform the double band hip thrust, begin seated on the floor with your back against a bench. Let your shoulder blades rest just above the bench. If the bench is too tall, stack a small box or set of weight plates underneath you until you reach the appropriate position. Place a long band across your hips, anchored either to a rack or heavy pair of dumbbells. Place a short band around your knees. Extend your arms across the bench for increased stability. Bend your knees ninety-degrees and set your feet roughly shoulder-width apart. Inhale deeply, exhale all the air out, and contract your abs. Execute by tucking your chin, driving through the heels, and squeezing your glutes hard at the top, while simultaneously flaring your knees out. This movement is best trained with high reps, so begin with sets of 15-20 reps. 

Bulgarian Split Squat
The rear foot elevated split squat, commonly known as the Bulgarian split squat, is dubbed as an excellent quad builder. Although the quads do get significant stimulus, there’s also a lot of damage to the glutes due to the eccentric (muscle lengthening) stretch on the way down. By creating a more vertical tibial angle, or shin angle, we can reduce quad involvement and maximize the amount of damage to the glutes. Moreover, by elevating the leading leg on a small box or set of plates, we can increase the range of motion, thereby accentuating the stress on the glutes. 

Begin by holding a dumbbell in each hand and standing a few feet away from the bench. Place the instep of your rear foot on the bench. Lower yourself until the knee comes in close contact to the floor. To place a bigger emphasis on the glutes, make sure your shin is fairly vertical at the bottom of the squat. Lean slightly forward as you descend. Pause and drive through your heels to return to the starting position. This movement is best trained with moderate reps, so begin with sets of 8-12 reps.

References
[1] Swinton, P A, et al. "A Biomechanical Analysis of Straight and Hexagonal Barbell Deadlifts Using Submaximal Loads." Journal of Strength and Conditioning Research, vol. 25, no. 7, July 2011, pp. 2000-9., doi: 10.1519/JSC.0b013e3181e73f87.
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Two Glute Exercises for Knee Health

4/8/2018

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This article was originally published in T-Nation. Click here to read the full article. 
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Two Surprising Exercises for Shoulder Health

1/15/2018

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This article was originally published in T-Nation. Click here to read the full article. 
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    Dan Chavez is the founder of The DC System. 

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