Second pass at: Sodium, potassium and magnesium when intake drops posts 61–90

Reading rather than answering, but this is the post I would point somebody at.

Post #74 put the caveat in the right place and I want to underline it.

Potassium: similar to sodium; losing weight involves some potassium loss. Bananas, sweet potatoes, and other potassium-rich foods help. Severe depletion is rare but symptomatic (weakness, palpitations).

I have separated what I observed from what I concluded, which does not always happen.

The arithmetic in post #76 is right; the assumption feeding it is the part to check.

Sodium: I have looked for the primary source twice and failed twice. Either it does not exist or it is somewhere I do not know to look, and I would like to know which.

Careful with the language on Sodium. "Not detected" and "not present" are different findings and the first is a statement about the method.

Taking post #76 at face value and following it one step further.

Magnesium: deficiency during weight loss is common and symptoms (fatigue, muscle cramps) are nonspecific. Supplementation is inexpensive and low-risk if needed.

Fluid intake: baseline needs increase with gastrointestinal effects and exercise. Thirst is not a reliable guide during appetite suppression. Drinking regularly (not just when thirsty) is prudent.

Coming back to post #79, because the follow-up matters more than the original answer.

The very ordinary causes of week-two malaise: inadequate hydration, low sodium intake, too-rapid calorie deficit, and inadequate sleep are more common causes of fatigue and malaise than compound toxicity.

Saving this. It is the version I will quote when the question comes round again.

Two people in this thread mean different things by Sodium and are disagreeing about the definition while believing they are disagreeing about the facts. Worth pausing to define it.

Lab testing: if symptoms are severe or persistent, checking electrolytes and minerals (sodium, potassium, magnesium, calcium) and interpreting them in context of losses during weight loss is reasonable.

Agreed on Sodium, with one qualification that I think matters. The reasoning holds for the case as described. Change the starting assumption and it does not, and the starting assumption is the part nobody states.

Post #83 answers the question as asked. The question underneath it is different.

If someone has run Sodium properly I would rather read that than my own reconstruction of it. Posting mine only because the thread has gone quiet.

Sodium intake often falls sharply when processed food intake falls, and that transition is abrupt rather than gradual for many people.

Anyone with a larger sample, please post it.

Exercise and electrolyte losses: sweating during exercise increases sodium and potassium losses. Electrolyte replacement during or after intense exercise helps maintain balance.

I have seen it go both ways, which is why I hedge.

Orthostatic symptoms: dizziness on standing after lying down can indicate dehydration or electrolyte depletion. Increasing fluids, salt, and potassium usually resolves it.

That is the practical version. The rigorous version is longer and says the same thing.

Symptoms attributed to electrolytes here are non-specific and overlap with dehydration, low intake and poor sleep. Attribution from symptoms alone is unreliable.

Scoping that to what I have actually seen rather than what I have read.