The Top 8 Foods and Drinks That Will Sabotage Your CrossFit Gains (Moderation is Key)

Chelsea Cormier • September 19, 2025

The Top 8 Foods and Drinks That Will Sabotage Your CrossFit Gains (Moderation is Key)

At CrossFit Rising Sun in East Nashville, we believe in balance. While we encourage our athletes to fuel their bodies with nutrient-dense foods, we also understand that life is meant to be enjoyed. However, certain foods and drinks can significantly hinder your performance and recovery when consumed regularly. Here are the top eight culprits that might be holding back your CrossFit progress.

1. Sugary Sports Drinks

Unless you’re training for over 90 minutes at high intensity, most commercial sports drinks are unnecessary sugar bombs. A typical 20-oz sports drink contains 34 grams of sugar – that’s equivalent to 8.5 teaspoons! This sugar spike followed by a crash can leave you feeling fatigued and craving more sugar. Stick to water for most workouts and save sports drinks for truly demanding, extended training sessions.

2. Processed Foods High in Trans Fats

Packaged snacks, fried foods, and baked goods containing partially hydrogenated oils create inflammation in your body, slowing recovery and reducing performance. These foods also tend to be calorie-dense but nutrient-poor, meaning you’re filling up on empty calories instead of the vitamins and minerals your body needs for optimal function.

3. Excessive Alcohol

While an occasional beer or glass of wine won’t derail your progress, regular alcohol consumption can significantly impact your gains. Alcohol interferes with protein synthesis (muscle building), disrupts sleep quality, and dehydrates your body. It also contains empty calories that can contribute to unwanted weight gain without providing any nutritional benefit.

4. High-Sodium Processed Meats

Deli meats, hot dogs, and bacon are convenient protein sources, but they’re loaded with sodium and preservatives. Excessive sodium can lead to water retention, increased blood pressure, and poor recovery. The preservatives in these meats have been linked to increased inflammation, which can hinder your body’s ability to adapt to training.

5. Sugary Coffee Drinks

That venti caramel macchiato might taste amazing, but it can contain over 400 calories and 43 grams of sugar. These coffee shop creations can spike your blood sugar, lead to energy crashes, and add hundreds of unnecessary calories to your day. Opt for black coffee or add a small amount of milk or natural sweetener instead.

6. White Bread and Refined Grains

Refined grains have been stripped of their fiber and nutrients, causing rapid blood sugar spikes and providing little satiety. This can lead to energy crashes and increased hunger, making it harder to maintain a healthy weight and consistent energy levels for training.

7. Fruit Juices

Even 100% fruit juice is essentially liquid sugar without the beneficial fiber found in whole fruits. A glass of orange juice contains as much sugar as a can of soda but without the satiety that comes from eating an actual orange. Choose whole fruits instead to get the fiber, vitamins, and minerals your body needs.

8. Energy Drinks

Most energy drinks are cocktails of caffeine, sugar, and artificial ingredients. While the initial energy boost might seem beneficial for training, the crash that follows can leave you feeling worse than before. The high sugar content can also interfere with your body’s natural energy systems.

The CrossFit Rising Sun Approach

Remember, moderation is key. We don’t believe in completely eliminating foods you enjoy – that’s not sustainable or realistic. Instead, focus on making these foods occasional treats rather than daily staples.

At CrossFit Rising Sun, our coaches work with members to develop realistic nutrition strategies that support their fitness goals while still allowing room for life’s pleasures. We believe that sustainable progress comes from building healthy habits, not from restrictive diets that leave you feeling deprived.

Ready to fuel your body for optimal CrossFit performance? Visit us in East Nashville for a nutrition consultation where we’ll help you create a balanced eating plan that supports your goals while fitting your lifestyle. Because your nutrition should work for you, not against you.

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