Backed by science, 5:2 fasting activates powerful metabolic changes in just two days a week—helping you feel better, lighter, and more in control without a full lifestyle overhaul.
Up to 25% off + FREE Fasting Bars with your 5:2 Pack! Offer ends soon.
What is 5:2 fasting
Eat normally 5 days a week and cut calories down to 20-30% of normal intake on two non-consecutive days.
Why it works
Between 12-24 hours into your fasting days, the body burns through stored glucose and shifts into fat-burning mode (ketosis) — a change linked to many of the health benefits seen with 5:2 fasting, including:*
Fat loss and sustained weight management
Metabolic + cardiovascular support
Inflammation reduction and strengthened immunity
Enhanced brain health and cognitive function
Inflammation reduction and strengthened immunity
Enhanced
brain health
and cognitive
function
Prolon's 5:2 fasting packs make it easy
Each pack includes (4) or (8) 1-Day Reset kits with clinically formulated meals that nourish your body, kickstart ketosis, and help keep you in a fasting state.
