Letter | Published:

Human Intolerance to Bacteria as Food


DEMANDS for new means to solve man's nutritional needs when the pressure of population intensifies or when he attempts to travel in space have suggested the use of single cell organisms as food. Hydrogenomonas eutropha, a hydrogen-fixing bacterium, could effectively control the atmosphere of a space cabin as well as providing nourishment1. The protein is of high biological value2 and is well tolerated even in high concentrations in rat diets3. Human feeding trials seemed warranted and were attempted.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1

    Jenkins, D., Proc. Sixteenth Intern. Astronautical Cong., 229 (1966).

  2. 2

    Calloway, D. H., and Kumar, A. M., J. Appl. Microbiol. (in the press).

  3. 3

    Shapira, J., and Mandel, A., Nature, 217, 1061 (1968).

  4. 4

    Foster, J. F., and Litchfield, J. N., Biotech. Bioeng., 41, 441 (1964).

  5. 5

    Kaufman, B., Nelson, W. O., Brown, R. E., and Forbes, R. M., J. Dairy Sci., 40, 847 (1957).

  6. 6

    Roberts, R. S., Brit. J. Nutrit., 8, 353 (1954).

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.