Jeff Seid’s Workout Routine and Diet Plan: A Complete Breakdown

April 5, 2026 iris

Jeff Seid went from lifting weights in his parents’ garage at age 12 to becoming the youngest IFBB Pro in American bodybuilding history. Along the way, he dealt with a serious knee injury that would have ended most athletic careers — and trained through it anyway. His physique and competitive record have made him one of the most-followed bodybuilders of his generation. Here is a full look at his training split, diet, and the principles behind both.

Jeff Seid Body Measurements

Before diving into his training program, it helps to understand what Jeff’s physique actually looks like by the numbers:

Height: 6’0″ (183 cm)
Competition weight: 205–215 lbs (88–95 kg)
Year of birth: 1994
Deadlift: 515 lbs
Squat: 435 lbs
Bench press: 350 lbs

Those strength numbers are solid proof that his aesthetic-focused training does not come at the expense of actual power. Jeff is not just cutting for shows — he is genuinely strong.

Jeff Seid’s 5-Day Training Split

Jeff trains five days a week and takes Saturday and Sunday off for full recovery. He rotates through chest, back, legs, arms, and shoulders across the week, often training abs and calves daily. His approach is to focus on one primary muscle group per session, then add volume through multiple exercises rather than grinding away on a single movement.

Monday: Chest and calves

Jeff considers Monday his strongest training day of the week. He uses seven exercises for chest, progressively reducing reps across sets to increase intensity. His Monday session includes:

Barbell incline bench press
Dumbbell bench press
Decline dumbbell flyes
Chest dips
Cable flyes
Leg raises
Seated calf raises

Tuesday: Back

Tuesday is devoted entirely to back development. Jeff runs four exercises for 3–4 sets each, using a rep scheme of 10, 8, 8, and 12 reps. The reverse pyramid followed by a high-rep final set keeps both strength and hypertrophy in play. His back session includes:

Barbell deadlift
Bent-over barbell row
Wide-grip chin-up
Seated cable row

Wednesday: Legs

Leg day runs five exercises for 4–5 sets each, again using the 10, 8, 8, 12 rep pattern. Jeff does not skip leg work — his squat numbers make that clear. His leg session includes:

Barbell squat
Front barbell squat
Leg press
Leg extension
Lying leg curl

Thursday: Arms and calves

Thursday covers both biceps and triceps. Jeff separates the movements to hit each muscle thoroughly rather than pairing antagonists in supersets. His arm session includes:

Skull crushers
Tricep rope extension
One-arm dumbbell tricep extension
Barbell curl
Alternating dumbbell curl
Preacher curl
Concentration curl
Leg raises
Seated calf raises

Friday: Shoulders

Friday rounds out the week with a heavy shoulder session — eight exercises for 3–5 sets each. Jeff targets all three heads of the deltoid, plus traps, through a variety of pressing and raising movements:

Shoulder press
Lateral side raise
Front dumbbell raise
Bent-over rear delt raise
Straight barbell row (upright row)
Rear delt pec deck flyes
Barbell shrug
Dumbbell shrug

For another look at how top bodybuilders structure a full weekly split, see our breakdown of Ronnie Coleman’s workout routine and diet plan — a useful contrast in training volume and philosophy.

Jeff Seid’s Cardio Approach

Jeff keeps cardio simple and targeted. He favours HIIT over steady-state, using a stationary bike for 10-minute sessions every other day. According to ACE Fitness, HIIT sessions improve cardiovascular conditioning in a fraction of the time compared to moderate-intensity steady-state cardio — which fits well with a heavy resistance training schedule where recovery is at a premium. He also runs a 10–15 minute ab circuit at the end of most sessions, using exercises like crunches and hanging leg raises.

Jeff Seid’s Diet Plan

Jeff’s nutrition follows a clean, whole-food approach built around lean proteins and complex carbohydrates. He tailors his intake depending on whether he is in a building phase or cutting for a show, but the core foods stay consistent. His regular diet includes:

Chicken breast — primary lean protein
Eggs and egg whites
White fish
Brown rice — primary complex carb
Avocado — healthy fat source
Vegetables throughout the day

One of his go-to meals is a high-protein pancake made from four egg whites, three whole eggs, half a scoop of oats, and ground cinnamon. It looks like a cheat meal, tastes reasonably close to one, and delivers serious protein — the kind of practical food hack that keeps a clean diet sustainable long-term.

Jeff Seid’s Supplement Stack

Jeff’s supplement approach is straightforward and evidence-backed. His regular stack includes whey protein, BCAAs, glutamine, a multivitamin, and fish oil. He also uses creatine, which he credits for improved strength and muscle fullness. According to Examine.com’s research summary on creatine, it remains one of the most consistently supported supplements for improving strength, power output, and lean muscle retention — making it a logical inclusion for anyone training at his intensity.

Key Takeaways from Jeff Seid’s Program

A few things stand out when you look at how Jeff actually trains. First, he varies his workouts consistently rather than repeating the same movements week after week. That variation keeps muscles adapting and also keeps training mentally fresh. Second, his rep schemes are deliberate — the 10, 8, 8, 12 pattern he uses on back and leg days builds both strength and hypertrophy by hitting different intensity zones in a single session. Third, he trains with serious volume (seven to eight exercises on some days) but backs it up with five to six days of rest between training the same muscle group, which is enough recovery time for most intermediate to advanced lifters.

If you are earlier in your training journey, the full volume may be too much to start. However, the split structure and the principle of focusing on one muscle group per day translates well regardless of experience level — you just scale the number of exercises down until the volume is appropriate.

Frequently Asked Questions About Jeff Seid’s Workout

When did Jeff Seid start lifting?

Jeff started training at age 12 after asking his parents for a weight set as a birthday gift. He was inspired in part by the book “Weight Lifting For Dummies.” Despite suffering a serious knee injury during his athletic career, he continued training and eventually became the youngest IFBB Pro in American bodybuilding history.

What is Jeff Seid’s favourite type of cardio?

Jeff prefers HIIT over steady-state cardio. He uses a stationary bike for 10-minute HIIT sessions every other day, which lets him maintain cardiovascular fitness without compromising recovery from his resistance training sessions.

Does Jeff Seid use creatine?

Yes — creatine is part of his regular supplement stack. He recommends it for improving strength and muscle fullness, which aligns with the substantial body of research showing creatine is one of the most effective legal supplements for resistance-trained athletes.

How does Jeff Seid train his abs?

Jeff runs a 10–15 minute ab circuit at the end of most training sessions. His ab work typically includes crunches and hanging leg raises, performed consecutively rather than with long rest periods to maintain intensity throughout the circuit.

What does Jeff Seid eat for protein?

His primary protein sources are chicken breast, eggs, egg whites, and white fish. He also uses whey protein and BCAAs as supplements. His famous high-protein pancake — made with four egg whites, three whole eggs, half a scoop of oats, and cinnamon — is one of his most-shared diet hacks for getting protein in a more satisfying form.