I Blamed the Watermelon. It Was the Olives.

It was 35 degrees in August. I did not turn on the air conditioning, and I want to be honest about why: not principle, not some hardened dialysis discipline. Laziness. At eleven in the morning the flat was still fine, and by the time it stopped being fine I was already on the sofa and the remote was four metres away.

Before the sofa I had been out walking. Before the walk I had eaten olives. Not a bowl of them — a handful, standing at the counter, the way nobody has ever sat down and made a decision about olives.

Then I opened the fridge, and there was watermelon. Cold, already cut, sitting there being the single best object in Portugal in August.

I remember two bites. I would have testified to two bites.

Monday, at the clinic, the scale said plus four kilos.

The story I told myself on the way there

The watermelon did it. That was the whole theory, worked out over about nine seconds. Watermelon is water with a rind on it, I ate watermelon, there is the four kilos, case closed, next patient.

It is a comfortable theory because it has one villain and the villain is not me. It also happens to be wrong, or at least mostly wrong, which I worked out somewhere around the second hour of the session, when there is nothing else to do but audit your own week.

The unglamorous version

I write software, and one thing from that job transfers directly: an outage is almost never one bad line. It is four small reasonable things that stack, and each one on its own would have been nothing.

Mine stacked like this.

The olives were salt. I did not eat them as salt, I ate them as a snack, but my body does not care how I filed them. Then heat — 35 degrees, no air conditioning, in a flat that had been quietly collecting it since morning. Then a walk in that heat, on top of the salt. By the time I got to the fridge, the watermelon was not a snack. It was the answer to a question that three earlier decisions had already asked.

The watermelon was the last item in the chain. I blamed it because it was the one I could see.

Subjectively — and this is my own read on my own summer, not a rule about anyone — salt is the part that does the damage, and it does it hours before the thirst shows up. By the time I am thirsty, the negotiation is over. I am not deciding anything at the fridge. I am just finding out what I decided at the counter.

And watermelon is not only water

The other thing I had filed wrong. I had it in my head as fluid, purely fluid, the way you would count a glass of water. But watermelon carries potassium as well, so the same two bites were showing up in two different places at once, and I was only counting one of them.

That is not a warning. I am not the person to tell anyone what a piece of fruit means for them — the numbers I work against came from my own team, and yours come from yours. It is just that I had a whole category of food in my head labelled “basically water,” and it turns out the label was doing some editing.

What I actually changed

Two things, and neither of them is heroic.

The first one I have been doing for a while and never thought of as a method until I tried to write it down. Cold sparkling mineral water. Straight from the bottle, small sips, and the point is not the water — the point is the bubbles. That fizz in the mouth registers as something happening, and something happening is most of what thirst is actually asking for. Flat water goes down and leaves nothing behind. The same amount of sparkling leaves a sensation, and the sensation is what buys me the next hour. I have no idea whether that is physiology or theatre, and I have stopped caring which.

Small sips from the bottle matters too, at least for me. A glass gets finished because it is a glass. A bottle does not have that shape to it.

The second thing is the air conditioning. I turn it on now, in the morning, before the flat decides for me. That is the entire intervention. It is not about willpower at the fridge, because willpower at the fridge is not real — by then the day has already been played.

And then there is the part that is smaller and slightly embarrassing. I logged the watermelon. Afterwards. Not to be told anything about it, and not because a number on a screen would have stopped me — it would not have — but because “two bites” and what was actually in front of me on that plate were not the same object, and I wanted to see the gap in writing. My memory is a generous narrator. It rounds everything down.

That is most of what the tracking is for, at least for me. Not a verdict at the moment of eating. A record afterwards, so that next August I know that the olives were the beginning of it and the watermelon was just where it became visible.

The air conditioning is on. The remote is next to me on the sofa now.

I’m a patient, not a clinician. Everything above is my own summer and my own kitchen. Targets, limits and what any of this means for you come from your nephrologist or dietitian — renalee just keeps the record.