Skip to content
Dr. Grey AI

Protocol · General Wellness

Optimal Nutrient Levels for Health Protocol

Vitamin D and Omega-3 Fatty Acids are the core of this stack, with 7 supporting supplements. Each row gives the amount the protocol lists and the grade our evidence database holds for that supplement in Optimal Nutrient Levels for Health.

We are re-verifying the studies cited on protocol pages; only confirmed citations are shown.

The stack

9 supplements · none graded yet

Amount listed in this protocol; not a recommendation.

Supplements in the Optimal Nutrient Levels for Health protocol, with the amount the protocol lists, the grade on file and confirmed studies
GradeSupplementAmount listedWhy it’s in the stackEvidence on fileShop
Primary stackThe core of this protocol
Vitamin DAmount listed: 2,000–4,000 IU daily (adjust based on blood levels; target 40–60 ng/mL)

Essential for bone health, immune function, mood; deficiency extremely common

Not graded yet
Omega-3 Fatty AcidsAmount listed: 1–2 g EPA+DHA daily (higher for specific conditions)

Essential for brain, heart, and joint health; most people don't get enough from diet

Not graded yet
Supporting stackListed as additions to the core
MagnesiumAmount listed: 300–400 mg daily (glycinate, citrate, or threonate)

Involved in 300+ enzymatic reactions; deficiency very common; supports sleep, mood, muscle function

Not graded yet
Vitamin B12Amount listed: 500–1,000 mcg daily (methylcobalamin)

Essential for nerve function, energy, DNA synthesis; deficiency risk increases with age

Not graded yet
Vitamin K2Amount listed: 100–200 mcg daily (MK-7 form)

Directs calcium to bones rather than arteries; supports bone and cardiovascular health

Not graded yet
ZincAmount listed: 15–30 mg daily

Supports immune function, wound healing, taste, smell; many people have suboptimal levels

  • Iron Absorption: improves
Not graded yet
FolateAmount listed: 400–800 mcg daily (as methylfolate)

Essential for DNA synthesis, methylation; especially important for women of childbearing age

Not graded yet
IodineAmount listed: 150 mcg daily (included in most multivitamins)

Essential for thyroid function; deficiency common in those not using iodized salt

Not graded yet
SeleniumAmount listed: 100–200 mcg daily

Supports thyroid and immune function; antioxidant; soil-dependent dietary intake

Not graded yet

Shop this protocol

Each opens third-party tested products, matched to the dose above where we can.

Links to Fullscript, iHerb or Thorne carry our referral, so we may earn a commission at no extra cost to you. Grades come from the research and never change based on what we earn. Fullscript asks for a free account before it shows its catalog and prices. Full disclosure

How this protocol works

In plain language

Optimal nutrient levels are essential for your body to function at its best. While a balanced diet should be the foundation, many people have suboptimal levels of key nutrients due to modern diets, soil depletion, limited sun exposure, age-related absorption issues, or increased needs. This protocol focuses on the nutrients most commonly deficient and most important for overall health.

NOTE: Ideally, work with a healthcare provider to test your nutrient levels and personalize supplementation. Not everyone needs every supplement - testing can identify your specific deficiencies. Food should always be the primary source of nutrients; supplements fill gaps. More is not always better - some nutrients can be harmful in excess. This protocol outlines commonly deficient nutrients with good safety profiles at recommended doses.

Vitamin D* is deficient in over 40% of the population, largely due to limited sun exposure and few dietary sources. It's essential for bone health, immune function, mood, and reduces risk of many diseases.

Omega-3 Fatty Acids* (EPA and DHA) are essential for brain, heart, and eye health. Most people consume far below optimal levels. A ratio of omega-6 to omega-3 of 4:1 or less is ideal; many people are at 15:1 or higher.

Magnesium* is involved in over 300 enzymatic reactions. Modern diets often provide less than optimal amounts. Deficiency can cause muscle cramps, poor sleep, anxiety, and cardiovascular issues.

Vitamin B12* absorption decreases with age. Deficiency causes fatigue, nerve problems, and cognitive issues. Vegetarians/vegans are at high risk.

Vitamin K2* (distinct from K1) helps ensure calcium goes to bones rather than arteries. Most people don't get enough from diet.

Zinc* supports immune function and is involved in hundreds of enzymes. Many people have marginal intake.

Folate* is essential for cell division and methylation processes. The methylfolate form is preferable for those with MTHFR variants.

Iodine* is essential for thyroid function. Those not using iodized salt may be deficient.

Selenium* supports thyroid and immune function. Intake varies by region due to soil selenium content.

Expected timeline: Correcting deficiencies takes weeks to months depending on the nutrient. Benefits are often gradual improvements in energy, mood, and overall health.

Printed from drgrey.ai/protocols/optimal-nutrient-levels. For education only; not medical advice. Talk to a clinician before starting any supplement.