Phyllis B. Acosta | |
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| Born | 27 December 1933 Shoal Creek Community |
| Died | 30 September 2018 |
| Occupation | Public health researcher |
Phyllis B. Acosta (27 December 1933 – 30 September 2018) was an American public health researcher best known for her research on inherited metabolic disorders and vegetarian diets. She was a pioneer in developing nutritional therapy for management of phenylketonuria.