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Range Atlas

AI-collected, not medically reviewed. Compare source context, not your health status.

Choose the units printed on your report.

Homocysteine: ranges and targets

6 sources / 7 ranges · umol/L

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Categories and treatment goals are not interchangeable. Blank chart areas do not mean normal. Display values are rounded.

Shared scale (umol/L)

01020

Laboratory reference intervals

Cleveland Clinic

Source reference interval

United States · Any sex · adult

Descriptive normal homocysteine range.

5 to 15 umol/L

01020
Source details: Cleveland Clinic, Source reference interval
Native values:
5 to 15 umol/L
Context:
Descriptive normal homocysteine range.
Population / collection / assay:
any; adult. Descriptive normal homocysteine range. Any additional details not recorded here remain unspecified.
Source date/version:
Not recorded
Last verified in this pass:
Not rechecked. Recorded access: 2026-06-11.
Verification:
verified_numeric_source. Inherited extraction, not rechecked in the September 20 pass. Endpoint inclusion, source version and any context absent from the original record remain unverified.
Endpoint inclusion is not verified. A boundary label does not imply ≤ or ≥.
Locator:
Original source link and basis note
Read Cleveland Clinic (new tab)

Rupa Health

Source reference interval

United States · Any sex · adult

Cited adult lab reference upper bound (0 to 12 umol/L).

Upper boundary 12 umol/L

01020

Arrow: continues beyond the displayed scale.

Source details: Rupa Health, Source reference interval
Native values:
Upper boundary 12 umol/L
Context:
Cited adult lab reference upper bound (0 to 12 umol/L).
Population / collection / assay:
any; adult. Cited adult lab reference upper bound (0 to 12 umol/L). Any additional details not recorded here remain unspecified.
Source date/version:
Not recorded
Last verified in this pass:
Not rechecked. Recorded access: 2026-06-11.
Verification:
verified_numeric_source. Inherited extraction, not rechecked in the September 20 pass. Endpoint inclusion, source version and any context absent from the original record remain unverified.
Endpoint inclusion is not verified. A boundary label does not imply ≤ or ≥.
Locator:
Original source link and basis note
Read Rupa Health (new tab)

Mayo Clinic Laboratories (female, age 50)

Source reference interval

United States · female · adult

Mayo Clinic Labs homocysteine reference is age- and sex-specific; female age 50 shown as a representative adult.

5 to 14.5 umol/L

01020
Source details: Mayo Clinic Laboratories (female, age 50), Source reference interval
Native values:
5 to 14.5 umol/L
Context:
Mayo Clinic Labs homocysteine reference is age- and sex-specific; female age 50 shown as a representative adult.
Population / collection / assay:
female; adult. Mayo Clinic Labs homocysteine reference is age- and sex-specific; female age 50 shown as a representative adult. Any additional details not recorded here remain unspecified.
Source date/version:
Not recorded
Last verified in this pass:
Not rechecked. Recorded access: 2026-06-11.
Verification:
verified_numeric_source. Inherited extraction, not rechecked in the September 20 pass. Endpoint inclusion, source version and any context absent from the original record remain unverified.
Endpoint inclusion is not verified. A boundary label does not imply ≤ or ≥.
Locator:
Original source link and basis note
Read Mayo Clinic Laboratories (female, age 50) (new tab)

Mayo Clinic Laboratories (male, age 50)

Source reference interval

United States · male · adult

Mayo Clinic Labs homocysteine reference is age- and sex-specific; male age 50 shown as a representative adult.

6.8 to 15 umol/L

01020
Source details: Mayo Clinic Laboratories (male, age 50), Source reference interval
Native values:
6.8 to 15 umol/L
Context:
Mayo Clinic Labs homocysteine reference is age- and sex-specific; male age 50 shown as a representative adult.
Population / collection / assay:
male; adult. Mayo Clinic Labs homocysteine reference is age- and sex-specific; male age 50 shown as a representative adult. Any additional details not recorded here remain unspecified.
Source date/version:
Not recorded
Last verified in this pass:
Not rechecked. Recorded access: 2026-06-11.
Verification:
verified_numeric_source. Inherited extraction, not rechecked in the September 20 pass. Endpoint inclusion, source version and any context absent from the original record remain unverified.
Endpoint inclusion is not verified. A boundary label does not imply ≤ or ≥.
Locator:
Original source link and basis note
Read Mayo Clinic Laboratories (male, age 50) (new tab)

Clinical categories and treatment goals

StatPearls (NCBI)

Source category

United States · Any sex · adult

Moderate hyperhomocysteinemia begins at 16 umol/L.

Lower boundary 16 umol/L

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Arrow: continues beyond the displayed scale.

Source details: StatPearls (NCBI), Source category
Native values:
Lower boundary 16 umol/L
Context:
Moderate hyperhomocysteinemia begins at 16 umol/L.
Population / collection / assay:
any; adult. Moderate hyperhomocysteinemia begins at 16 umol/L. Any additional details not recorded here remain unspecified.
Source date/version:
Not recorded
Last verified in this pass:
Not rechecked. Recorded access: 2026-06-11.
Verification:
verified_numeric_source. Inherited extraction, not rechecked in the September 20 pass. Endpoint inclusion, source version and any context absent from the original record remain unverified.
Endpoint inclusion is not verified. A boundary label does not imply ≤ or ≥.
Locator:
Original source link and basis note
Read StatPearls (NCBI) (new tab)

Named clinician and other published views

Optimal DX

Published view

United States · Any sex · adult

Functional-medicine optimal homocysteine goal.

5 to 7.2 umol/L

01020
Source details: Optimal DX, Published view
Native values:
5 to 7.2 umol/L
Context:
Functional-medicine optimal homocysteine goal.
Population / collection / assay:
any; adult. Functional-medicine optimal homocysteine goal. Any additional details not recorded here remain unspecified.
Source date/version:
Not recorded
Last verified in this pass:
Not rechecked. Recorded access: 2026-06-11.
Verification:
verified_numeric_source. Inherited extraction, not rechecked in the September 20 pass. Endpoint inclusion, source version and any context absent from the original record remain unverified.
Endpoint inclusion is not verified. A boundary label does not imply ≤ or ≥.
Locator:
Original source link and basis note
Read Optimal DX (new tab)

Lamkin Clinic

Published view

United States · Any sex · adult

Functional-medicine optimal homocysteine ceiling (under 7 umol/L).

Upper boundary 7 umol/L

01020

Arrow: continues beyond the displayed scale.

Source details: Lamkin Clinic, Published view
Native values:
Upper boundary 7 umol/L
Context:
Functional-medicine optimal homocysteine ceiling (under 7 umol/L).
Population / collection / assay:
any; adult. Functional-medicine optimal homocysteine ceiling (under 7 umol/L). Any additional details not recorded here remain unspecified.
Source date/version:
Not recorded
Last verified in this pass:
Not rechecked. Recorded access: 2026-06-11.
Verification:
verified_numeric_source. Inherited extraction, not rechecked in the September 20 pass. Endpoint inclusion, source version and any context absent from the original record remain unverified.
Endpoint inclusion is not verified. A boundary label does not imply ≤ or ≥.
Locator:
Original source link and basis note
Read Lamkin Clinic (new tab)

Units change the display, not the source population or clinical purpose. Source-native values remain in each disclosure. No alternate conversion is offered for this marker.

Methodology, units and limitations

AI-collected source-comparison prototype. Not medically reviewed. Not a diagnostic tool. Reference intervals describe a source population; categories and treatment goals have different purposes. Named views do not establish a universal optimum. Country identifies a source, not a biological normal for everyone there.

Source counts use stable publisher IDs; one source may supply several legitimate categories. Source dates and recorded access dates are separate. Older rows explicitly marked not rechecked have not received a new source review. Missing age, fasting, assay and risk details are not inferred.

Strict < and > differ from inclusive ≤ and ≥. Approximate and unknown boundaries are labeled, not converted into exact cutoffs. Printed endpoint precision is preserved; gaps between source categories are not silently filled.

Bars show only the visible portion of each interval. Arrows indicate continuation; small intervals are not enlarged to imply a wider range. Display rounding does not change stored values. Numerically equivalent units do not change the numbers.

Personal-result entry is not available in this release. Do not enter health results into the marker finder. The tool does not classify you, recommend treatment or adjust ranges for your age.