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Experience Life magazine
July/August 2026
Your healthiest life starts here — subscribe now to be inspired every issue.
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Experience Life magazine
July/August 2026
Your healthiest life starts here — subscribe now to be inspired every issue.

Paul Kriegler, RD, CPT

paul-kriegler-registered-dietician-life-time

Paul Kriegler, RD, CPT

Paul Kriegler, RD, LD, CPT, CISSN, is the director of nutritional product development at Life Time. He’s also a USA track and field coach.

Latest stories

protein shake poured in glass

Which Whey Protein Is Right for Me?

A guide to choosing the form of whey protein that best supports your body — and your health and fitness goals.
By Paul Kriegler, RD, CPT
Supplements
supplements

6 Supplements to Consider This Fall

Life Time dietitian recommendations for supporting your health as the season changes.
By Paul Kriegler, RD, CPT
SupplementsVitamins/Minerals
A collage of four images of people utilizing heart-rate training while working out.

How Much Cardio Do You Really Need?

Don't just "do cardio." Transform your conditioning program by doing the right amount and intensity to drive results.
By Paul Kriegler, RD, CPT
CardioFitness Tips
Illustration of a woman running outside.

The Exercise and Movement Guide to Supporting Your Immune System

Learn how exercise and movement can help support your body's immune system. Plus, get a four-week, immune-friendly strength workout plan.
By Paul Kriegler, RD, CPT
Fitness TipsImmunity
Illustration of a woman running outside.

The Exercise and Movement Guide to Supporting Your Immune System

Learn how exercise and movement can help support your body's immune system. Plus, get a four-week, immune-friendly strength workout plan.
By Paul Kriegler, RD, CPT
An illustration of a woman washing her hands.

The Lifestyle Guide to Supporting Your Immune System

Understand what factors outside of nutrition and exercise influence the health of your immune system.
By Paul Kriegler, RD, CPT
Functional/Integrative MedicineImmunity
An illustration of a woman holding a pear.

The Nutrition and Supplementation Guide to Supporting Your Immune System

Discover which foods and supplements are essential for helping your body build a strong immune system.
By Paul Kriegler, RD, CPT
ImmunitySupplements
Coach Paul in a pushup position.

Coach Paul’s Labor Day Workout

Move your body over the long weekend with this do-anywhere, circuit-style workout.
By Paul Kriegler, RD, CPT
At-Home WorkoutsBody-Weight Workouts
A top-down image of a glass filled with a green liquid.

Should You Use a Greens Supplement?

Learn why a greens powder may be a worth it way to boost your veggie intake — and what to look for when selecting one.
By Paul Kriegler, RD, CPT
Supplements
A Life Time fitness professional speaking with four members in workout wear.

Do You Need a Personal Trainer — Or a Fitness Professional?

Three traits to look for when choosing someone to help with your fitness efforts.
By Paul Kriegler, RD, CPT
Fitness Tips
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