Essential Supplements

Essential Supplements

Please read first. This page is general education, not medical advice. Supplements can interact with prescription medication and are not appropriate for everyone - particularly if you are pregnant, have kidney or liver disease, a bleeding disorder, or take blood thinners, blood pressure medication, or diuretics. Talk to your physician before starting anything here, and ask for bloodwork rather than guessing at a deficiency. Nothing on this page is a substitute for medical care.

What to take and why

What to take and why

When looking to optimize health after nutrition, sleep, and exercise have been accounted for, here are a few additions that may help address common vitamin and mineral shortfalls.

Vitamin D

Vitamin D

A steroid hormone involved in manufacturing key hormones, managing inflammatory markers, producing and maintaining bone, and immune function.

B vitamins

B vitamins

Essential in energy production, and cofactors in many metabolic reactions. Without them we cannot use energy from carbohydrate, fat, or amino acids effectively. A deficiency can also affect neurological function.

Magnesium

Magnesium

A mineral involved in repairing DNA damage, using carbohydrate effectively, and attenuating a concurrent vitamin D deficiency, with an added benefit of modulating vascular tone and heart rhythm. A large share of the population falls short, likely from a lack of green leafy vegetables in the diet.

Calcium

Calcium

Contributes to the formation and slowing of turnover in bone, mediating muscle contractions, and blood clotting. After roughly age 35, bone mineral dissolution begins to exceed deposition - a process associated with osteoporosis risk.

Other common shortfalls in the standard American diet include vitamin E, vitamin K, iron, and zinc. Ask if you would like the evidence on any of those.

General dose ranges

General dose ranges

These are commonly cited ranges for healthy adults, not prescriptions. Individual needs vary widely, and several of these have upper limits worth respecting. Confirm with your physician before starting, and ideally test rather than guess.

Protein

0.8-1.0 g per pound of bodyweight daily. Higher end when building muscle or in a calorie deficit; lower end when maintaining.

Fish oil

2-4 g of combined EPA/DHA per day. Discuss with your physician if you take blood thinners.

Vitamin D

Commonly 2,000-4,000 IU per day. Best guided by a blood test rather than assumption.

B vitamins

Prioritize food sources daily - whole grains, legumes, meat, eggs, some dairy - or a B-complex multivitamin.

Magnesium

RDA is roughly 310-420 mg per day depending on age and sex. Supplemental forms differ in absorption and bowel tolerance.

Calcium

RDA/AI is roughly 1,000-1,300 mg per day depending on age and sex. Food sources first where possible.

If you are navigating perimenopause or menopause, protein needs and bone density both shift - menopause and perimenopause training covers what changes and why.

Want help applying this?

Want help applying this?

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This material is provided for general education. It is not medical advice and is not a substitute for care from a qualified health professional. Always consult your physician before beginning any supplement regimen.

"I know what it's like to feel trapped by your own body."

At 280 pounds with high blood pressure, I was slowly killing myself with stress and neglect. That's exactly why I created Body Engineering - systematic wellness that actually works for busy people who don't have time to figure it out alone. Your transformation starts with one decision.

Jeff Danilin, founder of Body Engineering by JD, personal trainer in Burbank CA
Jeff Danilin, founder of Body Engineering by JD, personal trainer in Burbank CA

Stay Fit, Focused, and Ahead with Body Engineering

© 2025 ALL RIGHTS RESERVED

"I know what it's like to feel trapped by your own body."

At 280 pounds with high blood pressure, I was slowly killing myself with stress and neglect. That's exactly why I created Body Engineering - systematic wellness that actually works for busy people who don't have time to figure it out alone. Your transformation starts with one decision.

Jeff Danilin, founder of Body Engineering by JD, personal trainer in Burbank CA
Jeff Danilin, founder of Body Engineering by JD, personal trainer in Burbank CA

Stay Fit, Focused, and Ahead with Body Engineering

© 2025 ALL RIGHTS RESERVED

"I know what it's like to feel trapped by your own body."

At 280 pounds with high blood pressure, I was slowly killing myself with stress and neglect. That's exactly why I created Body Engineering - systematic wellness that actually works for busy people who don't have time to figure it out alone. Your transformation starts with one decision.

Jeff Danilin, founder of Body Engineering by JD, personal trainer in Burbank CA
Jeff Danilin, founder of Body Engineering by JD, personal trainer in Burbank CA

Stay Fit, Focused, and Ahead with Body Engineering

© 2025 ALL RIGHTS RESERVED