Tyler Baltierra‘s time at the gym has clearly been paying off!

On Sunday (July 23), the 31-year-old Teen Mom star – who is married to Catelynn Lowell – took to Instagram to share a shirtless photo from July 2022 and a more recent one to show off how his body composition has changed after focusing on building muscle.

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“PROGRESSION > PERFECTION. 1 year apart & sitting at the same weight in each pic. This is why the scale isn’t as important as overall body composition,” Tyler wrote. “I still have a long way to go until reaching my goals, but I like to post my progress as a reminder to myself of where I started, how far I’ve come, & why I keep putting in the work! 😈💪🏻😤 #FitnessJourney #MuscleBuilding #Gainz #BodyBuilding.”