Does pickle juice break a fast?

Plain dill pickle brine has very few calories and is generally fast-safe; it also provides sodium. Sweetened brine is not.

Does pickle juice break autophagy?

Nobody has measured it. Plain dill brine has almost no calories, sugar or protein, so it is unlikely to interfere, but autophagy cannot be measured at home and its timing in people is not established.

Are sweet pickles okay while fasting?

No, sweet and bread-and-butter pickles contain added sugar that breaks a fast.

How many pickles can I eat during a fast?

A spear or two of plain dill pickles is fine; a full serving starts to add up.

Can pickle juice help with fasting cramps?

The sodium in dill brine can help with cramps during longer fasts.

Does Pickles Break a Fast? No

Reviewed by the FastTrack team · Updated June 2026

Short answer: No

Most plain dill pickles do not break a fast. Brined in vinegar and salt, they have very few calories, and the brine can even help replace electrolytes. Sweet pickles are the exception.

Calories	~4 kcal per spear
Breaks a weight-loss fast?	No
Breaks ketosis?	No
Breaks autophagy?	Unlikely
Insulin impact	Minimal

Why dill pickles are mostly fast-safe

A plain dill pickle spear has only a few calories and almost no sugar. The salty, vinegary brine provides sodium that can ease fasting fatigue. In the small amounts people eat, plain dill pickles have a negligible effect on insulin and do not meaningfully break a fast.

Sweet pickles are different

Bread-and-butter and other sweet pickles are packed with added sugar and will break a fast. The verdict depends entirely on the type: choose plain dill, not sweet, and keep portions small.

How much is safe

A spear or two of plain dill pickles is fine during a fast; a full serving starts to add up.

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Frequently asked questions

Does pickle juice break a fast?: Plain dill pickle brine has very few calories and is generally fast-safe; it also provides sodium. Sweetened brine is not.
Does pickle juice break autophagy?: Nobody has measured it. Plain dill brine has almost no calories, sugar or protein, so it is unlikely to interfere, but autophagy cannot be measured at home and its timing in people is not established.
Are sweet pickles okay while fasting?: No, sweet and bread-and-butter pickles contain added sugar that breaks a fast.
How many pickles can I eat during a fast?: A spear or two of plain dill pickles is fine; a full serving starts to add up.
Can pickle juice help with fasting cramps?: The sodium in dill brine can help with cramps during longer fasts.