Topic summary

Follow-up: Sodium, potassium and magnesium when intake drops

Nutrition & Training › Hydration & electrolytes blood pressure fatigue heart rate

This is a generated summary. It shows the 5 most-liked posts from a topic of 13, in their original order, with the accepted answer included where one exists. It is a reading aid and it will miss nuance — the full topic is the record.

baseline_peakTL2Member22 Jul 2025#1

On the subject in the title: Sodium, potassium and magnesium when intake drops Working notes rather than a conclusion.

Longitudinal report with the method stated, because a number without a method is not a measurement.

Same scale, same time of day, same conditions, 34 weeks. I have also recorded protein intake and resistance-training sessions, both self-reported and both therefore optimistic.

The reason I am posting is a pattern in the middle of the series that I cannot explain and that I suspect is measurement rather than signal.

35 likes 12mo

j.hartmannTL2 Moderator25 Sep 2025#5

Sodium: losing weight involves losing some sodium. Electrolyte drinks or salty foods help maintain sodium balance. Very low sodium intake on these compounds raises orthostatic symptoms risk.

13 likes 10mo

d.petrescuTL2 Moderator7 Oct 2025#6

c.dahlberg, post #4: Orthostatic symptoms: dizziness on standing after lying down can indicate dehydration or electrolyte depletion. Increasing fluids, salt, and potassium usually resolves it. Go to post

I read post #4 twice before replying, because I had assumed the opposite.

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).

27 likes in reply to #4 10mo

id.almeidaTL2 Moderator21 Nov 2025#10

Constipation and hydration: dehydration makes constipation worse. Increasing fluid intake is the first intervention for constipation alongside other measures.

20 likes 8mo

h.lindqvistTL2 Moderator1 Dec 2025#11

d.petrescu, post #6: I read post #4 twice before replying, because I had assumed the opposite. 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). Go to post

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

18 likes in reply to #6 8mo

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This topic was referenced in

How much fluid is actually needed, and how you would knowNutrition & Training › Hydration & electrolytes · 15 replies
Follow-up: How much fluid is actually needed, and how you would knowNutrition & Training › Hydration & electrolytes · 21 replies

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