Table of Contents
Table of Contents
Every year, it seems a new supplement takes the spotlight, promising benefits for longevity, better sleep, stress management, or whatever wellness trend is having its moment. While some of these popular supplements can support health when used strategically and intentionally, a handful of key supplements have remained popular for decades because of their broad benefits and strong scientific support.
These foundational supplements help address some of the most common nutritional gaps and physiological needs across a wide spectrum of individuals and lifestyles. While nutrition should always begin with a balanced, whole-foods diet, magnesium, omega-3 fatty acids, vitamin D, zinc, and digestive enzymes can support essential functions throughout the body, from muscle and nervous system function to immunity and digestive health.
Whether you’re building your first supplement stack or looking to simplify your routine, focusing on these five nutrients can help you build a strong foundation and support your overall health.
I approach wellness through what I call my Three Pillars: Medicine, Movement, and Mindset. Foundational supplements live within that first pillar, but their real power shows up when they support the whole person. As a ninth-generation doctor of traditional Eastern medicine, I was raised to treat the root of an imbalance rather than chase the branches, and these five nutrients are among the most reliable for strengthening the body’s roots.
Magnesium is an essential mineral that plays a role in over 300 biochemical reactions throughout the body, affecting muscle and nerve function, blood pressure regulation, and heart health.1 It’s also attracting attention for its potential calming effects, which may help manage stress and promote more restful sleep.2,3
Despite magnesium’s importance, nearly half of us aren’t meeting our magnesium needs through food alone.1 And factors like chronic stress, poor diets, and certain medications can increase the body’s magnesium needs even further, putting us at greater risk for insufficiency.
There are several forms of magnesium supplements, each with its own benefits:
In my clinical practice, I often think of magnesium as a bridge between the body and the mind. When my patients feel wired but tired, or unable to settle at night, magnesium is one of the first foundations I look at. It speaks directly to my Mindset pillar, helping calm the nervous system so the body can do its most important repair work while we rest.
Omega-3s are essential fatty acids the body cannot produce on its own, meaning you need to consume them through foods you eat or as a supplement. These essential fats are vital for maintaining healthy cell membranes and play important roles in supporting cardiovascular, cognitive, immune, and joint health.7
The three primary omega-3 fatty acids include:
While the body can convert ALA from plant-based foods to EPA and DHA, the conversion rate is low. So, eating two to three servings of fatty fish like salmon, sardines, or mackerel weekly is the most efficient way to get enough omega-3s. If you don’t regularly incorporate fish into your diet, a fish oil supplement can help you meet your body’s needs for these essential healthy fats.
Research suggests omega-3 supplements may offer benefits, including support for heart health, improved cognitive function in older adults, support for a healthy pregnancy and fetal neurological development, improved mental health, and joint health support, especially in those who don’t get enough omega-3s through food alone.7
In traditional Eastern medicine, we speak of nourishing what is essential and building reserves the body can draw on over time. That is how I view healthy fats. Omega-3s quietly nourish the brain, the heart, and the joints, and I consider them one of the simplest ways to invest in graceful aging.
Vitamin D, also known as the sunshine vitamin, is unique in that you can get it from exposure to sunlight. It’s also found in some foods, like fatty fish, beef liver, mushrooms that have been exposed to ultraviolet (UV) light, fortified milks, and egg yolks. Vitamin D can also be taken as a supplement.
Vitamin D is essential for bone health and calcium absorption, muscle and nerve function, and a healthy immune system. Not getting enough vitamin D increases the risk of osteoporosis, and low levels are associated with depression, cardiovascular disease, and increased blood glucose levels.8
Most of us don’t get enough vitamin D from food alone. And for people living at high or low latitudes, who spend limited time outdoors, or during the winter months, taking a vitamin D supplement may be necessary.
That said, vitamin D is a fat-soluble vitamin, so your body stores any excess taken through supplements. It’s always a good idea to have your vitamin D levels checked to help determine whether supplementation is appropriate and the proper dosing.
I love that vitamin D connects us back to the sun and to movement outdoors, which is why it sits at the intersection of my Medicine and Movement pillars. A short walk in the morning light is one of the oldest forms of medicine I know. When sunlight isn’t enough, a quality supplement helps fill the gap.
Zinc is an essential mineral involved in hundreds of enzymatic reactions throughout the body. Although you only need it in small amounts, it plays important roles in immune function by supporting the development and activity of immune cells, protein and DNA synthesis, and wound healing. Studies have found that taking zinc supplements at the onset of a cold may help reduce the duration of cold symptoms.9
Zinc is involved in many different cellular processes, so not getting enough can affect multiple body systems. And since the body doesn’t store large amounts of zinc, consistent intake through diet or supplements is important. Certain populations—including older adults, vegetarians and vegans, and individuals with digestive disorders—are at greater risk of inadequate zinc intake.
Some of the best sources of zinc include oysters, beef, pork, pumpkin seeds, lentils, and fortified breakfast cereals. If you’re concerned you may not be getting enough zinc to meet your needs, talk with your physician about whether a supplement is appropriate for you.
In my tradition, we describe a protective layer of energy that guards the body against outside stress and illness. Zinc supports that same idea in modern terms, standing behind our immune defenses and capacity to heal. I remind my patients that consistency, not intensity, is what keeps this foundation strong.
Digestive enzymes are specialized proteins that help break the food you eat into smaller molecules that can be absorbed and used as energy for your body. They support efficient digestion, absorption, and overall digestive comfort.
Your body naturally produces digestive enzymes in the mouth, stomach, pancreas, and small intestine. But for those with decreased enzyme production or frequent digestive discomfort, digestive enzyme supplements can support healthier digestion.
Different digestive enzymes help break down different nutrients in the foods you eat:
Digestive enzymes can support one of the body’s most important functions: converting food into usable nourishment. For individuals who struggle with gastrointestinal issues, supporting digestion can be one of the most impactful ways to improve overall well-being.
In traditional Eastern medicine, digestion is considered the foundation of vitality. So much of the energy we carry through the day is created by how well we transform our food. When digestion is supported, everything downstream tends to improve, from energy to mood to the clarity of our skin. It is one of the most overlooked pillars of feeling truly well.
Not all supplements are created equal. Choosing high-quality supplements helps ensure you’re receiving products that are manufactured according to rigorous standards and contain the ingredients listed on the label in the proper dosage.
As both a physician and formulator, quality is deeply personal to me. I have spent years developing formulas, and I know how much the sourcing, form, and transparency behind a product matter. This is part of why I value working with iHerb, where I can point people toward a wide range of trusted, well-labeled options in one place.
Follow these tips for choosing high-quality supplements:
Building a supplement routine doesn’t have to be complicated. While wellness trends come and go, foundational nutrients continue to earn their place through decades of research and clinical use.
No single supplement can replace a healthy diet and lifestyle. And, as a physician, I always recommend that people get their nutrients through food first. But supplements like magnesium, omega-3 fatty acids, vitamin D, zinc, and digestive enzymes can help fill common gaps in the diet, supporting essential bodily functions and helping build a foundation of wellness.
We best support our health by focusing on strengthening the body’s foundations rather than chasing quick fixes. The best supplement routine is one designed to meet your individual needs, taking into account your dietary habits, existing health conditions, and personal goals.
When people ask me where to begin, I always return to these foundations. Start simple, choose quality, and let consistency do the work.
Always talk with your healthcare professional when starting a new supplement regimen to be sure it’s right for you. By focusing on high-quality, foundational supplements with strong scientific support, you can build a solid base for overall well-being and long-term health.
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DISCLAIMER: These statements have not been approved by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent disease.
