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Carbs for Muscle Growth: How to Use Them Best


Board Rep
Board Rep
Sep 4, 2019
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Carbs for Muscle Growth: How to Use Them Best

Carbohydrate consumption is often associated with weight gain. So, it’s not uncommon for clients to want to follow a low carb diet. Yet, reducing carb intake could negatively impact a client’s ability to achieve optimal muscle gain. Why?

The Connection Between Carbs and Lean Muscle
Cells use glucose for energy production. When glucose is stored in the body, it is called glycogen. If the body doesn’t have enough glycogen available, getting through a resistance training workout can be a struggle. Carbohydrates help top off glycogen stores, supporting a more intense exercise session.

When a client’s glycogen stores are low, you may notice that they have a hard time pushing their muscle to its max. Powerlifters may hit failure more quickly or have a lower one-rep max. Those engaging in a less intense strength training routine may find it more difficult as well.

Having adequate glycogen stores is also critical for muscle recovery. This can be a major issue for bodybuilders and other clients intent on increasing their lean muscle mass. Of course, protein intake is also important, but if they want the best results, an increase in carbohydrates may do the trick.

Speaking of protein, research further reveals that carbs are required for proper protein metabolism. Thus, eating low carb can potentially limit the body’s ability to use the protein consumed.

Simple Carbs vs Complex Carbs: What’s the Difference?
One of the reasons carbs have a bad name within the fitness world is that not all carbohydrate sources are healthy or support increases in muscle mass. Educating clients about the different types of carbs is the first step to helping them make healthier dietary choices.

The two most basic types of carbs are simple and complex. Simple carbohydrates are broken down by the body more quickly, giving the body a faster dose of energy. However, this type of carb is also responsible for raising the body’s insulin level. This leads to less stable blood sugar, which can lead to increased food cravings and more mood variations. If too many simple carbs are consumed, it can lead to type 2 diabetes, worsening a client’s health.

Complex carbohydrates create a much different effect on the body. They take longer to digest so they deliver energy slowly over time. Complex carbs also tend to be higher in nutrients. That makes them a better source of nutrition than their more simple counterparts. They also typically provide a good source of fiber which is helpful to digestive health.

Best Carbs for Muscle Growth
When engaging in resistance exercise, clients benefit from eating primarily complex carbohydrates. Foods that fall into this healthier carb category include:



Sweet potatoes






Whole wheat bread

Whole wheat pasta

It is also recommended that clients limit their intake of simple carbs, especially if their goal is to reduce their body fat. Sugary drinks, foods made with white flour, and most sweets are examples of simple carbohydrates. So too are crackers, cookies, and other common snacks.

Does this mean that clients can never enjoy their favorite foods if these items fall into the simple carb category? Not all. It simply means that most of their carbs should be complex if their goal is to increase muscle mass. Simple carbs should be saved for cheat days or special occasions.

Skip the Counting and Get it Delivered
Save the hours you spend in the grocery store, cooking, and prepping. Meal delivery makes planning your meals easier than ever before. You can customize your meal plan based on allergies, eating styles (clean eating, keto, vegan, etc.), and even budget. Working with a meal delivery service like Trifecta Nutrition takes all the work out of counting macros and prepping your meals. Each meal has a nutrition label with the calories and macros listed on it. You can also order from their Al La Carte menu to customize your macros on your own.

Recommended Carbohydrate Intake for Building Muscle Mass
The number of carbs a person should consume to promote muscle growth can vary greatly from one person to the next. This can increase a client’s frustration as they try to figure out the best intake for them. Clients can also be turned off by having to count their carbs. This limits your ability to identify the appropriate intake level.

To make this process easier, it may be helpful to talk in terms of portion sizes. Typically, an active male needs 6-8 cupped handfuls of carbohydrates daily. An active female needs 4-6 cupped handfuls. If they aren’t achieving the muscle growth they want, adding 1-2 additional cupped handfuls per day may be necessary.

Research further indicates that consuming a carbohydrate supplement “as soon after exercise as possible” is helpful to replenishing glycogen stores. This ensures that the muscle tissue worked has the energy it needs to recover and repair. This study further recommends consuming 1.2-1.5 grams of carbohydrates per kilogram of body weight per hour during longer exercise sessions.

Consuming protein at the same time can improve the storage of glycogen and promote muscle gain. This can be accomplished easily by having clients add fruit to their protein shake. Eating a slice of whole wheat toast with peanut butter is an alternative for those who don’t like the taste or texture of protein powder.

Another way to boost strength training results is to engage in carb cycling. This involves consuming more carbs on high-activity days, lowering carbohydrate intake by as much as 25 percent on rest or low-activity days. One benefit of this approach is that it supplies more carbs on days when the body can use it most. Carb cycling also prevents your body from adapting to a low carb intake, which can inhibit fat loss.

When Clients Resist Carbohydrate Increases
What do you do if a client is on a ketogenic diet or other low carb diet and doesn’t want to increase their carbohydrate consumption? Certainly, you can’t force them to eat more carbs. However, you can educate them as to the benefits of increasing their carb intake, especially if they are struggling to get through their resistance training sessions.

Talk to them about how carbs can increase their energy, making it easier to tackle their workouts. It might also be helpful to aim for small carb increases. Ask them to eat just one more serving daily and see if it makes a difference. If they see that they feel better but their weight doesn’t change, this may be enough.

Also remind them that complex carbs are good for the body and can be part of a healthy diet. It is food items that fall into the simple carb category that can potentially make it harder to build muscle and reduce fat tissue.

Protein and Fat Intake Also Important for Optimal Muscle Gain
A good muscle building diet considers all of the macronutrients within a client’s total calorie intake. This includes also paying attention to their intake of protein and fat.

Protein is the building block for muscle cells. Muscle needs it to get stronger and bigger. Ensuring that clients are eating enough protein, in conjunction with carbs, makes it easier to achieve their desired physique. If they struggle with this, consuming a whey protein supplement can help.

Consuming healthy fat foods also supports the body as it works to grow muscle. Two types of essential fat are important to overall health. These are omega-3 and omega-6 fatty acids. Both are good for the heart and can help fight inflammation.

In the end, it’s all about eating a balanced diet. Carbs, protein, and fat all contribute to optimal bodily function. When the body is given the nutrients it needs, it is able to respond more effectively to exercises performed.