Karyn Guidry Fitness

If you’re training for a marathon, HYROX, triathlon, or long endurance event, your fueling strategy matters.

One of the biggest mistakes I see athletes make is not taking in enough carbohydrates during training and racing. As your sessions get longer and more intense, your body needs a steady supply of carbs to maintain performance, delay fatigue, and recover faster.

Here are a few of the highest-carb gels currently available, along with their cost per gram of carbohydrate, so you can compare both performance and value.

Remember:
• 30–60g carbs/hour is a good starting point for most athletes.
• 60–90g+ carbs/hour is beneficial for longer events if you’ve trained your gut to tolerate it.
• Never try a new gel on race day—practice your fueling strategy during training.

The best gel is the one that:
✔️ You can digest comfortably
✔️ Helps you hit your carbohydrate goals
✔️ Fits your budget
✔️ Is easy to carry and use during training and racing

Which gel have you had the best experience with? Or is there one I should add to the list? Let me know in the comments!

Check out the latest blog ⬇️

How Strong Do You Really Need to Be for HYROX? Learn how much strength you really need for HYROX, why aerobic fitness matters more, and how to train for faster race day performance.

The perfect breakfast doesn’t exist—but a balanced one does.

A yogurt bowl can be one of the easiest ways to fuel your body, support your gut, and stay full for hours… if you build it the right way.

Instead of loading it with sugar, use this simple formula:
✔️ Start with a high-protein yogurt
✔️ Add fiber-rich fruit
✔️ Include healthy fats and crunchy toppings
✔️ Finish with a little cinnamon, cacao, or a natural sweetener if needed

This combination helps support stable blood sugar, sustained energy, muscle recovery, and a healthy gut microbiome—all in one bowl.

Swipe through to see:
• How to build the perfect yogurt bowl
• My favorite topping combinations
• The best dairy and dairy-free yogurt options

Save this post for your next grocery trip or breakfast, and let me know in the comments—what’s your favorite yogurt topping? 🍓🥣

Stop overcomplicating healthy eating.

If you want better energy, improved digestion, balanced hormones, and consistent performance, it starts with what’s on your plate—not another fad diet.

A simple way to build every meal:

✔️ Prioritize 30g+ of quality protein to support muscle, recovery, and blood sugar.
✔️ Fill your plate with fiber-rich vegetables to nourish your gut and support overall health.
✔️ Include healthy fats to help with hormone production and keep you satisfied.
✔️ Add complex carbohydrates to fuel your workouts, brain, and daily life.
✔️ Boost nutrient density with herbs, fermented foods, seeds, and colorful produce.
✔️ Skip ultra-processed dressings and make simple sauces with whole-food ingredients.

Healthy eating doesn’t have to be restrictive or complicated. Focus on eating mostly whole foods, building balanced meals, and being consistent. Those habits are what create long-term results.

This is the same framework I teach my nutrition clients because it’s practical, sustainable, and works whether your goal is fat loss, building muscle, improving performance, or simply feeling better.

Save this post for your next meal or grocery trip, and share it with someone who’s ready to simplify nutrition.

What’s one food that’s always on your plate? Let me know in the comments! 💬

Healthy eating doesn’t have to be complicated—or expensive.

If you’ve ever walked through Walmart wondering what to buy, I put together a simple guide with some of my favorite staples that I recommend to clients.

Inside you’ll find:
• High-protein foods to help you hit your protein goals
• Better-for-you snack options
• Everyday pantry staples I keep stocked
• Simple swaps that support performance and overall health

Remember, you don’t need a “perfect” grocery cart. Focus on consistently filling it with foods that help you feel your best and support your goals.

What are your favorite healthy Walmart finds? Drop them in the comments—I’m always looking for new recommendations!

Follow for more nutrition tips, healthy grocery guides, and performance-focused content. 💪🥦