Keto, fasting and cycling: A weight loss plan spanning 238 days

Keto, fasting and cycling: A weight loss plan spanning 238 days

It started as a spring warning and ended up being an almost eight-month experiment. The initial proposal was textbook: keto diet, intermittent fasting, brisk walking, push-ups to failure, and bike rides with 30-second to one-minute sprints. The declared goal was to reach June without a belly and with a beard. What is striking is not the plan itself, but how it mutated over time, leaving a trail of figures worth examining closely.

The first phase was the most aggressive. Seven kilos in just over two weeks, with strict keto, 16-hour fasts, and some 24-hour ones. The author of the initial message summarized it with a phrase that sounds like a slogan: "true health". In parallel, the thread filled with satiety recipes — Greek yogurts with protein powder, microwaved potato with olive oil, sea bass with asparagus cream — and warnings about sugar, office pastries, and dairy. The conversation quickly drifted toward a more uncomfortable issue: what happens when the caloric deficit stops working.

How much protein is needed to avoid muscle loss?

That's where the technical twist arrived. With 97 kilos on the scale, the calculation used in the conversation is 2 grams of protein per kilo of body weight, meaning about 200 grams daily, with only 80 grams of fat and vegetables as accompaniment. The question opening the final stretch of the thread is very specific: how do you eat that without supplements and without turning the fridge into a warehouse?

The repeated answer is that 200 grams daily are not sustainable, but 160 or 170 are, based on meat with potatoes, fish for dinner, tuna, and a 30-gram protein shake. Some claim they have maintained that figure for months without supplements. Others nuance that the goal is not just losing fat, but gaining muscle at the same time, because staying skinny is not part of the plan.

The hunger problem: why keto works and why it fails

The circulating explanation is hormonal: strict keto generates leptin, the hormone that suppresses hunger. Hence the plan includes a shot of olive oil at noon, using fat as a tool to avoid hunger, and 87% chocolate to trick the brain. The problem appears when the body asks for sugar and doesn't find it: the first days are tough, and the recommendation is to rely on black coffee with cinnamon or a glass of water with sea salt.

Against this, the current defending permanent habits rejects seasonal operations. "You have to create a habit of healthy eating and exercise," argues part of the conversation, which considers bikini season stupid and absurd. The counterargument is that metabolic flexibility — the ability to switch from burning glucose to burning fat — is only trained through periods of restriction, not with a lifelong soft diet.

The real result: five sustained kilos and an orderly retreat

The end of the story is not what the beginning promised. The author acknowledges settling at about 5 kilos less, sustained over time while eating what he ate before. Neither the 14 kilos of visceral fat estimated initially, nor the 8 consolidated halfway. The conclusion left is that losing more ceases to be sustainable in his case, and that after a while he will make another push to consolidate another five.

Meanwhile, the thread has populated with different profiles: someone weighing 80 kilos with over 65 of muscle boasting about microwaved potatoes; someone aged 58 saying they don't diet or go to the gym; someone with a wedding in July and two sizes to lose. Seen from outside, bikini season is less a diet than a social thermometer. How many who start in spring are still going in September?