|Fasting is an act of willing abstinence or reduction from certain or all food, drink, or both, for a period of time, week or days. Other fasts may be only partially restrictive, limiting particular foods or substances. The fast may also be intermittent in nature. Metabolic changes toward the fasting state begin after absorption of a meal (typically 3-5 hours after a meal); "post-absorptive state" is synonymous with this usage, in contrast to the "post-prandial" state of ongoing digestion. An absolute fast is normally defined as abstinence from all food and liquid for a defined period, usually a single day (24 hours), or several days.
The top open access journals are peer reviewed scholarly Journals of Food Processing & Technology. The top open access journals are freely available on the public internet domain, allowing any end users to read, download, copy, distribute, prink, search or link to the full texts of the articles. These provide high quality, meticulously reviewed and rapid publication, to cater the insistent need of scientific community. These journals are indexed with all their citations noted. The top open access journals are indexed in MEDLINE, PUBMED, SCOPUS, COPERNICUS, CAS, EBSCO and ISI.