Is it better to get nutrients from food or supplements?

Food should always come first. Whole foods provide nutrients in forms the body recognizes, along with fiber and other compounds that supplements can't replicate. That said, supplements can help fill gaps that diet doesn't consistently cover, especially for nutrients that are difficult to obtain in reliable amounts from whole foods alone.

What does NSF Certified mean for supplements?

NSF Certified for Sport® means a product has been third-party tested for label accuracy, contaminants, and banned substances. It's one of the more stringent independent certifications in the supplement industry.

How do I know if a supplement is high quality?

Look for bioavailable forms of key ingredients, third-party testing, and a formula built around ingredient synergy rather than just a long list of isolated nutrients.

What is the difference between fat-soluble and water-soluble vitamins?

Fat-soluble vitamins (A, D, E, and K) are stored in body fat and the liver. Water-soluble vitamins (the B vitamins and vitamin C) aren't stored in the body and need to be replenished regularly through diet or supplementation.

Can one greens supplement replace a multivitamin?

A well-formulated greens supplement built around nutrient synergy can cover much of the same ground as a multivitamin, often alongside additional support like probiotics or digestive enzymes. The most useful comparison is what each product actually delivers (in what forms, and at what amounts) rather than the category label alone.

What are the most important vitamins to take daily?

This varies by individual, but B vitamins, vitamin D, magnesium, and omega-3 fatty acids are among the nutrients most commonly under-consumed and most foundational to everyday function, from energy metabolism to immune health.

How long does it take to notice results from supplements?

Internal changes aren't always felt right away. Because supplementation works by supporting the body's normal processes over time, many people notice gradual shifts in energy, digestion, or general well-being over weeks rather than days, particularly with consistent daily use.

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HEALTH GUIDES: VITAMINS & SUPPLEMENTS

Your guide to vitamins & supplements

Drops of vitamins going into green supplements in a bottle

Understanding vitamins, minerals, and their many benefits

Vitamins and minerals support thousands of processes in the body every day.

Things like energy production, immune defense, nerve signaling, and cellular processes all depend on a steady supply of essential nutrients. Fat-soluble vitamins and water-soluble vitamins each play distinct roles, and minerals like magnesium, zinc, and calcium play important roles in multiple bodily functions.

When intake is adequate and consistent, these systems tend to run smoothly. But most people have nutritional gaps—not from a single missing food, but from the cumulative effect of modern diets that fall short on variety and nutrient density. Only about 10–12% of US adults meet the recommended daily intake for fruits and vegetables. AG1 is designed as a complement to a nutrient-rich diet.

Explore vitamins and supplements topics

What your body needs can depend on diet, lifestyle, and which nutrients are hardest to get consistently from food—whether that's omega-3 fatty acids, B vitamins, or whole-food-sourced micronutrients. This guide to dietary supplements is your starting point for understanding what key nutrients do, how to evaluate them, and how Foundational Nutrition fits into the bigger picture. Explore our resources to get a better grasp of specific nutrients and how to choose quality supplements, plus what to look for with whole-food-sourced ingredients like greens powder. For a deeper dive into Omega-3s, check out our Omega-3 supplement guide. To understand how two of the most studied nutrients work together to support heart health and cellular energy, learn about the benefits of omega-3 with CoQ10. If low energy is one of the signs you're noticing, our guide to the best vitamins and supplements for energy breaks down which nutrients matter most and why.

All About Omega-3 Fatty Acids

How to Choose the Right Omega 3 Supplement?

Benefits of Omega-3 with CoQ10

Why AG1?

Rather than isolating nutrients, the AG1 Next Gen formula brings together 75+ vitamins, minerals, and whole-food-sourced ingredients, including B vitamins (B1, B2, B3, B5, B6, B7, B9, and B12) that act as cofactors in your body's energy production process, probiotics, prebiotics, and plant-based digestive enzymes, in a single daily serving.

Instead of piecing together multiple products, AG1 Next Gen offers a simple, daily way to support your nutritional foundation.*

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"I love it! The texture is smoother, mixes better, no grit remaining. Also like the additional vitamins and probiotics are great improvements."

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"I continue to love the taste and feel good while drinking AG1 daily. The customer service is outstanding and the company rewards loyal customers with occasional perks. That makes me feel good too!"

Wendy O., 3/17/25 — AG1 Next Gen Review

FAQs

Here are answers to some of the most common questions about vitamins, minerals, and choosing the right supplement for your needs.

Some of the most commonly under-consumed nutrients include magnesium, vitamin D, B vitamins (particularly B12 and folate), and omega-3 fatty acids. These nutrients are involved in processes as fundamental as cellular energy production, immune health, and nervous system function.

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