Yes and no—supplements during fasting keep the fast only if they’re truly non-caloric; oils, amino acids, sugars, and sweeteners end fasting goals.

No, most food sensitivity tests lack clinical proof; symptom triggers are best confirmed with a supervised elimination and reintroduction.

No, food-grade vacuum sealer bags made of polyethylene and nylon show low migration when used as directed.

Food purifiers can reduce some residues and microbes, but careful washing and peeling still do most of the work.

Yes, food processors grind nuts into meal, flour, or butter when you use short pulses, small batches, and the S-blade.

Most preservatives don’t cause cancer at typical intakes; a few need care in context, such as nitrites in processed meat.

Yes, food miles matter for air-freighted goods, but production choices and diet usually drive most food-related emissions.

Food miles matter in limited ways; farming methods, diet, and waste usually drive far bigger climate impacts.

Yes, some artificial colors can intensify ADHD-related behaviors in a subset of children; a short, guided elimination trial can confirm sensitivity.

Yes, many synthetic food colors are made from petroleum-based chemicals, while natural colorants come from plants or minerals.