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Optimal Iron

  • Gentle iron complex supports optimal absorption
  • Well-tolerated form of iron; Easy on the stomach
  • Cofactor nutrients support healthy iron metabolism and utilization

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High End Ingredients

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Highly Recommend

Capsules are easy to take. This iron is really helping my iron numbers to return to normal! I didn't experience any problems with constipation like most iron. ~Jadhemama

Iron can be a difficult mineral to absorb.

For this reason, it is one of the most common nutrient deficiencies in the world.

Many people are deficient in the specific nutrients required for iron to be absorbed and utilized. This is why standalone iron supplementation may not be effective at rebuilding or sustaining healthy iron levels.

Optimal Iron provides a well-tolerated form of iron along with targeted nutrients that help to absorb and utilize the iron.

Optimal Iron is an ideal choice for individuals with stubborn low iron levels. It contains 29 mg of elemental iron per capsule serving as Ferrochel® Ferrous Bisglycinate Chelate. This form of iron is gentle on the stomach and well-tolerated by those sensitive to iron supplementation.

Iron supplements frequently cause side effects such as stomach upset, nausea, or constipation. This can be due to the form of iron or poor iron metabolism.

Optimal Iron is designed for those who need effective iron support, but are sensitive to most iron supplements. This gentle iron complex contains targeted nutrients that facilitate the absorption of iron.

Many people struggle to absorb iron from whole foods and supplements. Iron requires supporting cofactor nutrients for its efficient absorption, transport, and utilization in the body. Low levels of these make it challenging to increase iron levels even with supplementation.

Unlike many standalone iron supplements, Optimal Iron includes these essential cofactors: vitamin A, vitamin C, copper, biotin, and riboflavin. Betaine HCl and lipase are included to support optimal digestion of iron and these supporting cofactors.

Dr. Ben Lynch ND designed Optimal Iron to provide powerful iron support in a well-tolerated form. This unique formula is gluten-free and dairy-free. It contains no fillers or GMO markers. It’s the perfect companion to our iron-free Prenatal Vitamins for those who require iron supplementation during pregnancy.

For a smaller serving of iron, consider Iron Chewable. When it comes to iron supplements, bioavailability is key. Feel good supporting healthy iron levels in your body with Optimal Iron by Seeking Health.

Key Ingredients

Inside the Uncompromising Quality of Our Ingredients

  • Iron (ferric glycinate)
    A well-tolerated, taste-free form of iron. Supports healthy oxygen transportation, muscle function, metabolism, and blood cell formation.
  • Vitamin C
    Supports immune system function, antioxidant and enzyme activity, histamine metabolism via DAO production, collagen production, mast cell stability and respiratory health.
  • Vitamin A
    Provides the bioavailable form, as retinyl palmitate, to support common BC01 gene variations for optimal eye, mucus membrane, and immune system health. It plays significant roles in respiratory and lung health, normal inflammatory signaling and healthy immune system defenses.
  • Riboflavin (Vitamin B2)
    This is the MTHFR gene cofactor, which produces the active form of folate. Supports hormone balance, nervous system function, cellular energy production and glutathione recycling. It is a cofactor for the MAOA enzyme, helping metabolize dopamine for feelings of calm. Also aids in healthy serotonin and histamine levels.
  • Biotin
    Supports healthy skin and nails.
  • Copper
    Supports healthy blood cells and cellular function
  • Betaine HCL
    Supports stomach acid levels, which in turn supports optimal digestion

Suggested Use

Take 1 capsule in the morning with breakfast or as directed by your healthcare professional.


Children and pregnant or breastfeeding women should consult their healthcare practitioner prior to use. Do not use if tamper seal is damaged.

Suitable for

Vegetarians/Vegans, Bariatric

Delivery Method


How to Store

Keep closed in a cool, dry place out of reach by children.

  • No Artificial Preservatives
  • No Artificial Flavors
  • No Artificial Colors
  • Wheat-Free
  • Tree-Nut-Free
  • Shellfish-Free
  • Soy-Free
  • Peanut-Free
  • GMO-Free
  • Gluten-Free
  • Fish-Free
  • Egg-Free
  • Dairy-Free

What our customers say

Real reviews from real customers.

Rated 4.9 out of 5 stars
Based on 154 reviews
Total 5 star reviews: 145 Total 4 star reviews: 9 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
98%would recommend this product
154 reviews
  • KR Profile picture for Kirsten R.
    Kirsten R.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Best I have found yet!

    I love this iron, it is the first iron supplement I have been able to take without having an instant headache or stomach issues! I am so happy I order this!

  • A
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Unique in the market!

    I have had chronic iron deficiency for years, so I have tried many iron supplements, and in my opinion, there is no other iron supplement that works as quickly and is as well absorbed as this one! I feel much better since I started taking this product! I am very, very grateful! Please never discontinue its production! Thank you very much!

  • MV
    Marian V.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    6 months ago

    My ferritin levels increased greatly taking this. I checked my bloodwork again 6 months later, so I am not sure how quickly it happened but it went from 19 to 46. This formula is definitely more gentle than other iron supplements but it does still affect BMs slightly. I stop taking it if I am not going easily 2x per day.

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