This Common Diet Could Be Detrimental To Muscle Growth, Research Suggests

Plus, three muscle-building tips.

This Common Diet Could Be Detrimental To Muscle Growth, Research Suggests
Hannah Frye
Hannah Frye

Assistant Beauty & Health Editor

By Hannah Frye

Assistant Beauty & Health Editor

Hannah Frye is the Assistant Beauty Editor at mindbodygreen. She has a B.S. in journalism and a minor in women’s, gender, and queer studies from California Polytechnic State University, San Luis Obispo. Hannah has written across lifestyle sections including health, wellness, sustainability, personal development, and more.

Image by Clique Images / Stocksy

October 27, 2023

Low-carb diets may interfere with muscle growth & performance

A recent review study published in Current Opinion in Clinical Nutrition and Metabolic Care analyzed research on ketogenic diets, low-carb diets, weight loss, insulin regulation, muscle formation, endurance exercise, and more. It's a comprehensive summary of what we know about the intersection of low-carb diets and muscle gains.

The review suggests that limiting carbs can increase protein oxidation, thereby limiting the availability of essential amino acids—which are necessary to stimulate optimal muscle protein synthesis and promote recovery. 

Authors note that keeping up with a low-carb diet (eating fewer than 130 grams of carbs or less than 26% of total calories from carbs per day) for 8 to 12 weeks can further limit essential processes that impact the growth of muscle cells—specifically in the case of anaerobic exercises like weightlifting.

In other words, severe carb restriction can be detrimental for those regularly performing high-intensity exercise—especially when continued beyond a week or two. 

This being said, following a ketogenic diet can be incredibly beneficial for some folks. Research shows that this low-carb eating pattern can help reduce seizure frequency in people with epilepsy and improve key markers of metabolic health when followed for six to 12 months. So there's certainly a case for going keto under some circumstances; it’s just not a one-size-fits-all solution (like any eating plan, really). 

3 take-home muscle-building tips: 

Rather than severely restricting one macronutrient, this review suggests we might consider taking a more food-inclusive approach to building strength. Some carbohydrates can play a key role in muscle mass and overall health.

Want to build muscle but not sure where to begin? Consider these starter tips. 

1.

Keep protein a priority

3.

Incorporate strength training if you aren't already

If you're looking to build muscle, you'll want to start strength training, focusing on increasing the amount of weight that you lift over time to continue to put sufficient tension on your muscles.

GET STARTED: The Only Guide To Strength Training You'll Ever Need (With 33 Exercises)

Now, weight lifting doesn’t have to be your only form of exercise. If you enjoy going on runs, keep those on the agenda. If you’re a devoted yoga class attendee, keep it up. Movement is movement, and while strength training may be most beneficial for building muscle, that doesn’t discount the benefits of other forms of exercise—especially if they bring you joy. 

The takeaway

A recent review study suggests that a low carbohydrate diet could negatively impact muscle development and anaerobic performance, making it a less-than-ideal choice for most athletes. However, low-carb protocol can be helpful for some individuals, so it’s important to consult your doctor before considering changes in your eating pattern. Here, more on the relationship between protein intake and muscle building if you want to dive deeper