Can You Gain Muscle with Intermittent Fasting?

Welcome back to our health blog! Today, we’re diving into a topic that has been gaining traction in the fitness community: intermittent fasting (IF) and its effects on muscle gain. This week, we’ll explore a recent study that examines how IF compares to continuous meal feeding in terms of building muscle.

Understanding the Study

A new study led by researchers including Grant Tinsley, Minnow Hinselman's, and Andy Galpin investigated the effects of intermittent fasting on muscle gain over an eight-week period. Participants engaged in resistance training while following either an intermittent fasting regimen or a continuous meal feeding approach, all while maintaining a calorie surplus.

Study Details

• Participants: Men and women involved in resistance training.
• Duration: 8 weeks of resistance training.
• Caloric Intake: 10% calorie surplus with a protein intake of 2.2 grams per kilogram of body weight.
• Feeding Window: Intermittent fasting group consumed all calories within an 8-hour window, starting at least an hour after training, while the continuous feeding group ate throughout the day.

Results of the Study

At the end of the study, both groups exhibited similar gains in lean mass, with no statistically significant differences. However, there were noteworthy distinctions:

• The intermittent fasting group reported lower energy levels and had reduced performance during their lifting sessions.
• They completed fewer repetitions in their training and showed lower increases in their squat one-rep max compared to the continuous feeding group, who gained an average of 4 kg more in their squat max.
• Interestingly, the intermittent fasting group did not gain as much body fat as the continuous feeding group, even though calorie intakes were supposed to be equivalent.

Potential Explanations

This discrepancy in body fat gain may stem from the participants in the intermittent fasting group possibly consuming fewer calories overall, despite the designed calorie surplus. Past research indicates that a smaller caloric surplus is sufficient for muscle gain without significantly increasing fat mass.

Implications and Future Research

This study contributes to the ongoing conversation about intermittent fasting and muscle building, particularly in resistance training contexts. While the findings align with previous literature suggesting lower body strength gains with intermittent fasting, it highlights the need for further research with larger sample sizes and longer durations.

Conclusion

In summary, while intermittent fasting can be beneficial for some health goals, it may not be the most effective approach for muscle gain during resistance training compared to continuous meal feeding. As always, it is important to consider personal goals and dietary needs.

If you’re looking for guidance in building muscle or reaching other fitness goals, consider working with an expert coach. The team at Biolain can provide the support needed to help you navigate your fitness journey successfully.

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