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Picture of Fried Eggs
By Paul Kriegler, RD, CPT
How can one supplement offer so many potential benefits? Why aren't more people taking this stuff? These are just a few of the questions NAC generates.
Illustration of molecules.
By The Life Time Training Team
Quercetin is one of the most potent polyphenols in plants — and it can support your skin, heart, and body composition.
Assortment of supplements and foods to boost immunity.

Get advice from Tom Nikkola, vice president of nutrition and virtual training at Life Time, about the eating and lifestyle choices that can compromise immunity, as well as how we can optimize our nutrition to help build this system. Plus, he shares some bonus tips for exercise and sleep.

Blender, nut butter, blueberries and spinach laid out on a counter.
By Molly Schelper
Looking for a convenient way to get a balance of nutrients into your diet? Try these body-fueling shake recipes from three healthy-living experts.
Assorted supplements on a leaf.
By Paul Kriegler, RD, CPT
What are the best gut-health supplements? How do they support digestive function? Why does gut health even matter? Find out.
Strong man in health club or gym.
By Paul Kriegler, RD, CPT
Don't get confused with which supplements to take for weight loss — Life Time Training explains why multivitamins, fish oil, and protein are top choices.
Mix of various vitamins on white background.
By The Life Time Training Team
Wondering why you need a high-quality multivitamin? Or how to identify quality ones from the rest? Learn about the power of this supplement in this guide.
Woman with sunglasses outside in the sun.
By The Life Time Training Team
As many as four out of five people in the United States may have less than optimal vitamin D levels, yet this critical supplement can have a profound impact on our health.
Multiple bottles of pills spilling pills out.
By The Life Time Training Team
To support optimal health, these are the five supplements that we recommend everybody add to their daily nutrition routine.
Woman holding her stomach.
By The Life Time Training Team
Gastrointestinal symptoms may be the sign of a digestive issue. Learn how supplementing with digestive enzymes could contribute to a healthier digestive system.
Woman working out with dumbbells.
By The Life Time Training Team
If you can't get enough protein in your diet through food alone, you may want to consider supplementing with an amino acid.
Woman running outside.
By The Life Time Training Team
Wondering if this popular supplement is worth the hype? Discover the six potential health benefits of collagen.
Two women running outside.
By The Life Time Training Team
Your body uses magnesium to help produce energy, regulate inflammation, and more — and many of us are deficient. Learn how to get enough of this crucial micronutrient.
Smoothie ingredients falling into blender
By Molly Schelper
Many shakes and smoothies are high in sugar and neglect a balance of nutrients. This template can help you build a nutritious, tasty shake that’ll keep you feeling full and energized. Plus, enjoy three dietitian-created shake recipes.
Bowl of fish oil capsules.
By The Life Time Training Team
Think omega-3's are all hype? Learn the numerous health benefits that can come from supplementing with a high-quality fish oil.
The back of a woman running down the stairs, with a flowing ponytail.
By Emily Ewen
Just like skin, your hair’s appearance is a reflection of your inner health. Learn what to eat (and supplement) for healthy locks.
collagen
By Maggie Fazeli Fard
Collagen — and its gelative derivatives — is used to support hair, skin, muscle, and blood-cell regeneration.
bcaas
By Lauren Bedosky
Curious about BCAAs? Our expert explains what they're good for — and how to right-size your intake.
illustration of high protein food with a kettlebell
By Lauren Bedosky
What should you eat before and after exercising? Our expert offers some options.
Five different protein powders pointing toward a blender full of smoothie
By Kathy Summers
A popular nutritional supplement among fitness-minded people, protein powders come in many formulations. Here’s how to decide which ones are likely to suit you best.
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