Portrait of Linus Pauling

Photo: Nobel Foundation · Public domain

Born in United States · Nationality American — Science / intellectuals / activism

Linus Pauling

Documented profile covering 8 controversies, including “Promotion of vitamin C as cancer treatment and dispute over Mayo Clinic randomised trials” and “Break with Arthur Robinson over vitamin C/cancer research and $575,000 legal settlement”.

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Profile No. 2589 · Updated on 12 October 2026

Portrait of Linus Pauling

Photo: Nobel Foundation · Public domain

8Documented controversies
12Sources
0Formal charge · all time
0Conviction

I. Documented controversies

01

1976-1985

Promotion of vitamin C as cancer treatment and dispute over Mayo Clinic randomised trials

No legal proceedings

Together with Ewan Cameron, Pauling reported extended survival among patients with advanced cancers receiving vitamin C and popularised the idea of a major anticancer effect. The research was criticised for its non-randomised control groups and methodology.

State of the evidence
Documented
Attribution
Directly implicated

Last verified: 15 September 2026

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02

1978-1983

Break with Arthur Robinson over vitamin C/cancer research and $575,000 legal settlement

Civil / administrative proceedings

Arthur Robinson, co-founder and director of Pauling's institute, was ousted following a dispute concerning, among other matters, the institute's management and experimental findings on vitamin C and cancer. Robinson brought extensive proceedings for breach of contract and defamation.

State of the evidence
Documented
Attribution
Institutional responsibility

Sources · 2

  1. [1]
  2. [2]
    The Washington Post'C' is for Colds, Cancer and ControversyPressHigh reliability

Last verified: 15 September 2026

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03

1968-1974

Advocacy of orthomolecular psychiatry and megavitamins against schizophrenia

No legal proceedings

Pauling formalised the concept of orthomolecular medicine and psychiatry and advocated the idea that high doses of vitamins could contribute to treating schizophrenia and other disorders.

Attribution
Directly implicated

Sources · 2

  1. [1]
    American Journal of PsychiatryOn the Orthomolecular Environment of the Mind: Orthomolecular TheoryAcademic publicationVery high reliability
  2. [2]
    American Journal of PsychiatryLinus Pauling, Ph.D. (1901–1994): From Chemical Bond to CivilizationSecondary sourceVery high reliability

Last verified: 15 September 2026

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04

1970s

Promotion of high-dose vitamin C against common cold with claims considered excessive

No legal proceedings

Pauling popularised the idea that high doses of vitamin C could prevent or substantially alleviate the common cold. His fame turned this theory into a widespread social phenomenon and a sharp conflict with parts of the medical community.

State of the evidence
Documented
Attribution
Directly implicated

Sources · 2

  1. [1]
  2. [2]

Last verified: 15 September 2026

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05

1960

Senate subpoena and refusal to reveal names of people circulating his petition

No legal proceedings

The Senate Internal Security Subcommittee summoned Pauling and demanded that he disclose the identities of people who helped collect signatures for his anti-nuclear petition. He refused, believing they would face professional and political reprisals.

State of the evidence
Documented
Attribution
Protagonist is a witness

Sources · 2

  1. [1]
    NobelPrize.orgThe Nobel Peace Prize 1962 - Presentation SpeechArchiveVery high reliability
  2. [2]
    JustiaLinus Pauling v. James O. Eastland et al., 288 F.2d 126Court decisionVery high reliability

Last verified: 15 September 2026

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06

1958-1960

Legal action seeking to prevent American nuclear tests

Civil / administrative proceedings

Pauling and other citizens brought proceedings in federal court to prevent US authorities from continuing nuclear tests. The courts dismissed the action for lack of a justiciable issue and standing.

State of the evidence
Documented
Attribution
Protagonist is the complainant

Sources · 1

  1. [1]
    JustiaPauling v. Globe-Democrat Publishing Company, 362 F.2d 188Court decisionVery high reliability

Last verified: 15 September 2026

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07

1957-1958

Petition by 11,021 scientists against atmospheric nuclear testing and accusations of acting as communist intermediary

No legal proceedings

Pauling and his wife coordinated an international appeal signed by more than 11,000 scientists calling for an end to atmospheric nuclear testing. The initiative made him a leading figure in disarmament and, simultaneously, a target for officials accusing him of serving communist propaganda.

State of the evidence
Documented
Attribution
Directly implicated

Sources · 1

  1. [1]
    NobelPrize.orgThe Nobel Peace Prize 1962 - Presentation SpeechArchiveVery high reliability

Last verified: 15 September 2026

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08

1952-1954

Passport refused during McCarthyism because of political activism

Civil / administrative proceedings

The US State Department repeatedly refused to issue or renew Pauling's passport, citing security considerations and his political commitments. This prevented him from attending certain international conferences.

State of the evidence
Documented
Attribution
Directly implicated

Sources · 2

  1. [1]
    NobelPrize.orgThe Nobel Peace Prize 1962 - Presentation SpeechArchiveVery high reliability
  2. [2]
    Science History InstituteLinus Pauling’s Vitamin C Crusade ExplainedSecondary sourceVery high reliability

Last verified: 15 September 2026

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II. Constellation of documented links

No documented link with another published profile for now.

Two profiles are linked when a documented controversy of one names the other. The link points to that controversy and its sources; it does not indicate a personal relationship.

III. Has something changed?

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