PubMed (Includes more than 28 million references)
PubMed is a free resource supporting the search and retrieval of peer-reviewed biomedical and life sciences literature with the aim of improving health–both globally and personally. Citations in PubMed primarily stem from the biomedicine and health fields, and related disciplines such as life sciences, behavioral sciences, chemical sciences, and bioengineering.
A handy list of search tips and a glossary of terms
PubMED Medical Subject Headings 2019
The Medical Subject Headings (MeSH) thesaurus is a controlled and hierarchically-organized vocabulary produced by the National Library of Medicine. It is used for indexing, cataloging, and searching of biomedical and health-related information. MeSH includes the subject headings appearing in MEDLINE/PubMed, the NLM Catalog, and other NLM databases.
PubMed Medical Subject Headings for Fad Diet assignment
MeSH Heading Diet, Carbohydrate-Restricted
MeSH Heading Diet, Carbohydrate Loading
MESH Heading Diet, High-Protein Low-Carbohydrate
MeSH Heading Diet, Fat-Restricted A diet that contains limited amounts of fat with less than 30% of calories from all fats and less than 10% from saturated fat.
MeSH Heading Diet, Reducing
MeSH Heading Fasting
MeSH Heading Diet, Ketogenic
MeSH Heading Diet Fads
MeSH Heading Diet, Mediterranean
A diet typical of the Mediterranean region characterized by a pattern high in fruits and vegetables, EDIBLE GRAIN and bread, potatoes, poultry, beans, nuts, olive oil and fish while low in red meat and dairy and moderate in alcohol consumption.
MeSH Heading Diet, Paleolithic:A nutritional plan based on the presumed diet of pre-agricultural human ancestors.
Sample peer reviewed journal article about fasting :
Effect of Alternate-Day Fasting on Weight Loss, Weight Maintenance, and Cardioprotection Among Metabolically Healthy Obese Adults: A Randomized Clinical Trial.