Editorial policy

Last updated: October 12, 2026 · PingDiet Editorial Team

Our standard

Every PingDiet article starts with a direct answer, then shows the evidence behind it. We write for real people trying to eat fewer times a day, so we favor clear numbers, tables and plain language over hype.

Sources we use

• First choice: randomized controlled trials and systematic reviews in peer-reviewed journals (found through PubMed and the Cochrane Library).
• Reference data: NIH Office of Dietary Supplements fact sheets, USDA FoodData Central, the National Academies' Dietary Reference Intakes, and guidance from professional bodies such as ACOG and the American Diabetes Association.
• Used with care: animal and cell studies. When a claim rests only on them, we say so.
• Not used as evidence: testimonials, influencer posts or brand marketing, including OPA Nutrition's.

Each article lists its sources at the end. We link to the original study or official page wherever possible.

How articles are written and updated

• Articles are researched and drafted by the PingDiet Editorial Team and checked against the cited sources before publishing.
• We review articles at least once a year, and sooner when important new research appears. The "Last updated" date shows the most recent review.
• We don't make disease claims: no article says fasting or any product treats, cures or prevents a disease.
• Corrections: if we get something wrong, we fix it and note the change at the bottom of the article. Report errors through our contact page.

Medical-safety disclaimer

PingDiet provides general health information, not medical advice. It isn't a substitute for advice from a doctor, registered dietitian or other qualified professional who knows your history. Talk to your clinician before you change how you eat, especially if you take prescription medication.

Who shouldn't fast

Do not fast, or fast only under medical supervision, if you:

• Are pregnant, breastfeeding or trying to conceive
• Are under 18
• Have, or have had, an eating disorder
• Have type 1 diabetes, or take insulin or other medication that can cause low blood sugar
• Are underweight, frail or recovering from illness or surgery
• Take medication that must be taken with food
• Have kidney disease, heart disease, gout or a history of low blood pressure or fainting

Stop fasting and seek care if you have chest pain, confusion, fainting, severe dizziness or symptoms that don't improve after eating.

Advertising and commercial content

Our articles are not paid for by any brand. If an article mentions a product made by a company related to us, it carries a visible disclosure (see Ownership). Product mentions never change our conclusions.