When you picture men in their late 60s, you may think about mowing lawns and playing with grandchildren. What you probably don't think about is muscle envy and wondering about their workout routine and diet.

With Jonathan Kimble Simmons, though, you should. This iconic American actor built lean muscle mass, added weight and got ripped, becoming the envy of athletes and actors half his age.

In this review, we will take a close look at his life, accolades, achievements, and, most importantly, his strenuous workout routine, diet, and supplements.

There is no age limit on great living and building muscle, and with the JK Simmons workout plan, we can prove it.

Jacked JK Simmons' Workout Routine

JK Simmons' workout routine is rigorous and detailed. His personal trainer Aaron Williamson focuses on a training method called Cumulative Blood Volume Training, or CBVT.

Essentially, the idea is to concentrate on flooding the muscle being trained with as much blood as possible.[1]

Because the blood carries the nutrients, fluids, oxygen, BCAAs, hormones and electrolytes, flooding the muscle pumps them full of these nutrients.

To accomplish this, trainers use half reps, long peak holds, and extended static contractions.

Simmons performs these actions to pump anabolic-rich blood to his muscles and increase their size.

This takes a professional trainer and a plan, so before you begin, make sure you are covered and protected, as this can be dangerous, causing damage to your muscles.

The following exercise routine is one that Simmons followed for his Justice League roles.

Along with Simmons' trainer, the cardio and functional training Simmons wanted was paired with building muscle mass that trainer Williamson needed.

There is a lot of arm work here, focusing on the biceps and triceps. Simmons hits cardio first, and while cardio and weight management were crucial, moves similar to hammer grip pulldowns, overhead rope tricep extensions, dumbbell hammer curls, and wide grip lat pulldowns were the central focal point.

Related Article - Should You Do Biceps and Triceps On The Same Day?

While none of this was critical for his role as Kai in Kung Fu Panda, it was for the live-action comic roles, including playing opposite Jamie Foxx in Spider-Man: No Way Home.

Along with Simmons diet plan, the superset exercises found below will have your arms larger and your endurance longer in a very short time.  You can also check this article if you are working out and still wondering "Why are my arms so skinny?"

It is important to note, though, that Simmons trains with little to no rest between sets. The CBVT forces you to hold positions and weight with extended arm control and weight training arm blaster movements.

This is a difficult workout for anyone, especially beginners. 

JK Simmons Seated Lifting Weights

Training Phase One - Workout A

Exercises

Sets

Reps

Rest

Elliptical machine

10 minutes

1

10-15 secs

Dynamic stretching

5 minutes

1

10-15 Secs

Flat dumbbell press

4

10

10-15 Secs

Flat Reverse Grip Dumbbell Press

4

10

10-15 Secs

Machine Chest Press

4

10-12

10-15 Secs

Cable Crossover

4

10-12

10-15 Secs

Wide-Grip Lat Pulldown

4

10-12

10-15 Secs

Hammer Grip Pulldown

4

10-12

10-15 Secs

Hammer strength row

4

10-12

10-15 Secs

Superman

4

10

10-15 Secs

Crunch

4

15

10-15 Secs

Hanging leg raise

3

20 (each side)

10-15 Secs

Abdominal machine crunch

3

12-15

10-15 Secs

Lying side oblique crunches

2

5 (Each Side)

10-15 Secs

Related Article - Ideal Lat Pulldown Weight

Training Phase One - Workout B

Exercises

Sets

Reps

Rest

Elliptical machine

10 minutes

1

10-15 Secs

Dynamic stretching

5 minutes

1

10-15 Secs

Standing dumbbell curls with arm blaster

4

12-15

10-15 Secs

Standing cable curls

3

15

10-15 Secs

One-arm high-cable curl

3

15

10-15 Secs

Dumbbell hammer curl

3

15

10-15 Secs

Rope push-down

4

12-15

10-15 Secs

Overhead rope triceps extension

4

12-15

10-15 Secs

Dumbbell tricep kickbacks

4

10-12

10-15 Secs

Bodyweight bench dips

4

10-12

10-15 Secs

Plank

1

Until Failure

10-15 Secs

Side planks with a twist

1

Until Failure

10-15 Secs

Plank jack

1

Until Failure

10-15 Secs

Plank push-up

1

Until Failure

10-15 Secs

Training Phase Two - Monday Workout (Chest & Triceps)

Exercises

Sets

Reps

Rest

Unilateral flat dumbbell press

4

6-10

10-15 Secs

Unilateral fly

3

12

10-15 Secs

Unilateral pec dec fly

2

15

10-15 Secs

Dips

2

Until failure

10-15 Secs

Push-up

2

Until Failure

10-15 Secs

One-arm overhead triceps extension

3

12 (each arm)

10-15 Secs

Triceps push-down

3

12

10-15 Secs

Reverse dips

3

Until Failure

10-15 Secs

Training Phase Two - Wednesday Workout (Back, Shoulders, & Biceps)

Exercises

Sets

Reps

Rest

One-arm lat pulldown

4

20/15/10/8

10-15 Secs

Cable shrug

3

12

10-15 Secs

Seated unilateral dumbbell press

3

12

10-15 Secs

Upright row

3

12

10-15 Secs

Cable side lateral raise

3

15 (Each Arm)

10-15 Secs

Alternate standing dumbbell curl

4

20/15/10/8

10-15 Secs

Cable curl

3

12

10-15 Secs

Close grip pull-up

3

Until Failure

10-15 Secs

Related Article - Best Cable Curl Alternatives

Training Phase Two - Friday Workout (Legs & Abs)

Exercises

Sets

Reps

Rest

Leg extension

4

30/20/15/10

10-15 Secs

Seated leg curl

4

30/20/15/10

10-15 Secs

Glute machine kickback

4

30/20/15/10

10-15 Secs

Dumbbell lunge

3

12 (each leg)

10-15 Secs

Leg press machine calf raise

4

30

10-15 Secs

Plank

1

Until Failure

10-15 Secs

Side planks with a twist

1

Until Failure

10-15 Secs

Plank jacks

1

Until Failure

10-15 Secs

Plank push-ups

1

Until Failure

10-15 Secs

Who Is JK Simmons? (Beloved American Actor)

Born in 1955, Jonathan Simmons attended high school in Columbus, Ohio, where he participated in football, drama, and choir.

As his father was a music teacher, singing and dancing were around from birth.

After graduating college as a member of the musical fraternity (Phi Mu Alpha Sinfonia), Simmons moved to Seattle and became a member of the Repertory Theater.

In 1992 he landed his first role on Broadway.

From Guys and Dolls to Peter Pan, Simmon was all over Broadway and eventually landed a role on television.

On television, he plays major roles in All My Children, moving on to his most popular role in Law & Order as Dr. Emil Skoda.

From there, his notoriety led to larger roles and even a transition to the big screen. Small parts and a lifetime of roles on both large and small screens made Simmons a household name.

His casting list includes credits on Hollywood blockbusters such as Juno, Thank You For Smoking, Jennifer's Body, and Kong: Skull Island.

In 2017 Joss Whedon’s Justice League hired him for the part of Commissioner James Gordon.

He also played J. Jonah Jameson in the MCU in animated adaptations of Spider-Man as well as Venom and No Way Home.

Arguably his most notable role, though, is his long-standing voice work as the Yellow M&M.

With over 40 years of film, television, and Broadway credits, Simmons' next achievement may very well be the lifetime achievement award.

Current Body Stats

JK Simmons surprised many when he showed up on set muscular, bulky, and fitter than other actors on the Justice League set that were still in their 20s.

His current measurements are as follows.

Stat

Measurement

Height

5’11”

Weight

147 lbs

Age

67

Biceps

14 inches

Waist

32 inches

Chest

40 inches

Legs

15 inches

JK Simmons Seated Full Body Shot

JK Simmons’ Workout Principles (How He Shocked The World)

JK Simmons’ trainer has placed him on a HIIT routine with a major focus on CBVT.

While this can be dangerous without proper guidance and supervision, it is one of the same techniques that Dwayne Johnson uses to increase the size of his chest and biceps.

Simmons understands his body and knows what he is capable of.

However, under strict guidance, supervision, high-intensity training schedules, and the proper diet, Simmons has made it work.

JK Simmons Before And After Side By Side

Awards & Achievements In Hollywood & Beyond

The 67 year old actor has over 200 credits in film and television, as well as numerous appearances on the Broadway stage.

Over his career, he has racked up over 60 nominations and a total of 40 wins. [2] We are certain there will be more Simmons credits to come, too.

Too numerous to list here, JK Simmons has won an Academy Award, British Academy Film Award, one Golden Globe, and a Screen Actors Guild Award. Some of the more prominent awards are:

  • Best Supporting Actor - Whiplash
  • Best Actor in a Supporting Role - Whiplash
  • Outstanding Performance by a Male Actor in a Supporting Role - Whiplash
  • Best Supporting Actor, Motion Picture - Whiplash
JK Simmons Whiplash Movie Scene Capture

JK Simmons' Diet & Nutrition

Over the course of his entire life, JK Simmons has tried almost every diet under the sun. When hired for Justice League, he worked with his personal trainer to develop a diet that worked for his goals and needs.

That diet, outlined below, features low-carb foods, a lot of vegetables, and lean proteins. Simmons eats every three hours and allows himself one cheat snack per day: a single square of dark chocolate.

Breakfast

After waking up, JK Simmons eats a couple of eggs and a bowl of oatmeal. The carbs and lean protein give him the energy he needs to get his day started and fuel for his body to perform.

Snack

As a mid-morning snack, Simmons prefers to drink a protein shake to keep his calorie count up, and his body energized.

Lunch

Lunch for Simmons is simple and small, usually only lean meat from chicken or fish, without any additional ingredients.

Snack

His daily vice (the chocolate cheat meal) and another protein shake round out his afternoon snack and keep him going until dinner.

Dinner

That dinner is another source of lean meat but this time accompanied by plenty of vegetables. Low starch and almost no sugars allow his metabolism to remain high and his blood flow steady.

What To Go For

  • Lean Proteins
  • Veggies
  • Drinking Enough Water

What To Avoid

  • Eating Excess Carbs
  • Fast Food

What Supplements Does JK Simmons Take?

JK Simmons doesn’t take a lot of supplements.

The supplements JK Simmons does ingest are included in his daily protein shakes. This also includes a multivitamin and omega 3s.

JK Simmons adds that the BCAAs, proteins, testosterone, and creatine in the shake are all he needs to get through his workouts and day-to-day activities without needing massive doses or long recovery periods.

JK Simmons Workout Routine & Diet FAQs

Did JK Simmons work out for the Tomorrow War?

Yes, when playing the role of Chris Pratt’s father on screen, Director Chris McKay asked JK Simmons to return to form when he saw older photos of Simmons lifting weight in the gym.

Simmons got with his trainer and bulked up for the part.

Who is JK Simmons’ personal trainer?

Since 2009 when Simmons hit a 250-pound weight maximum, he hired personal trainer Dana Perri and has been with them ever since.

He also added a second trainer, former Marine Aaron Williamson, to help keep him ripped and growing for other roles. [3]

How long has JK Simmons been training for?

JK Simmons has been through the weight yo-yo multiple times in his life. In 2009 he reached a new high on the scale and vowed to end it once and for all.

Since 2009 he has been on a healthy diet and workout routine.

Simmons preferred treadmill workout routines, but his trainers agreed that Commissioner Gordon needed superset exercises; the forearm plank and plank push-up exercises became his new comfort zone.

Did J.K. Simmons gain weight for New In Town?

Yes, Many thought Simmons wore a fat suit for his role in New in Town, but the fact is, he didn't. The actor gained over 40 pounds to play the part in a complete body transformation.

Conclusion

JK Simmons is a role model. On-screen and off, he has dealt with it all. From massive weight gain to getting shredded and bulking up, Simmons knows what it takes. His low-carb diet and personal trainer-guided workout system lead to an Instagram account that is the envy of millions.

While you may not be able to land a role in Terminator, just so your daughter can meet Jai Courtney, his large biceps and Adonis-like physique can be achieved by anyone with the dedication, desire, and wherewithal to see it through.

As Simmons proves, age is only a number, and you can lose fat and build muscle at any age.

References: 

1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6950543/
2. https://www.imdb.com/name/nm0799777/awards
3. https://people.com/health/j-k-simmons-says-his-insanely-ripped-body-is-just-part-of-his-healthy-lifestyle/

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Andrew White

Andrew White is the co-founder of Garage Gym Pro. As an expert fitness professional (gym building nerd) with over 10 years of industry experience, he enjoys writing about everything there is to do with modern fitness & the newest market innovations for garage gyms. When he isn’t testing out products for his readers, he’s usually out surfing or playing basketball.