Are you fasting right now? planning on one? Perhaps a water only fast, or maybe just a
500 calorie a day fast. The list of different fasts is endless.
But, what they all have in common is that they limit caloric intake, either directly or
But, while minimizing your calories you still want to get as many nutrients and electrolytes as you can.
So, let's take a look at 6 main electrolytes and see how you can get the most from each of them without
increasing your calorie intake by much.
Sodium and Chloride
This one's super easy. If you're not already getting more than enough sodium from your diet,
you can always just add a bit of table salt to your drink or food. Table salt is mostly 50%
Sodium and 50% chloride.
This is a big one. It's tough to reach 100% of your RDI (recommended daily intake) for potassium
on a low calorie diet. It's even harder when your fasting - not that you need to reach 100% while
Not getting enough potassium in your body can lead to muscle cramps in your arms or legs. You
can get high blood pressure or constipation. And, if your constantly craving sugar and sweetness then you
might have a potassium deficiency. That's because, back in the day, when humans were evolving, we
got a lot of our potassium from fruits which are high in potassium. And, since fruits are sweet,
sugar cravings were a signal to our brain to eat more fruits which contains more potassium.
But, getting enough potassium without all the sugar, while on a fast is a bit tricky. Here's a list
of super easy high potassium snacks. And,
dont' forget about coconut water, it's loaded with potassium!
But, if you're on water only fast, the above simply won't do. So, I'll introduce you to my secret weapon:
Creme of Tartar!
Creme of tartar is actually a baking good you can find in any grocery store. It's usually added
to baked goods in small quantities to help it get foamy. Creme of tartar comes from the residue of fermintation of grapes.
All you have to do is add a little creme of tartar to your water, about 1 tsp, is plenty.
It's almost 0 calories and
1 tsp has roughly 13% of your daily intake for potassium or roughly 1 bananas worth of potassium.
This is another difficult one because it's not generally found in super high quantities in many foods.
But, your best natural bet is Greens. Greens have by far the highest density of Magnesium. The 5 highest foods are the following:
As usual, all data is normalized to 200 calories. A single leaf of Swiss Chard has 9% of the daily recommended Magnesium for just 7 calories: which won't break your fast. Wow! That is impressive.
Now, the wheat bran you can get at a grocery store and then put it in your oatmeal for added Magnesium.
Just keep in mind, it does reduce the absorption of vitamins a bit, so don't relly on it too much.
Calcium is very easy to get in large quantities from just about anything in the dairy section of
the supermarket. Even vegan options like soymilk and almond milk are loaded with calcium because
the manufacturer adds calcium sulfate to it. Milk of course is famous for it's high calcium content
but the body doesn't even absorb most of it: much of it gets urinated out.
But, I wouldn't recommend relying on just 1 source for any kind of nutrient. So, let's look where-else
you can get your calcium. As you can see below, watercress is particularly impressive due to it's
extremely low calorie content which pumps up it's 200 calorie normalized percent. A small handful
of that, 1 cup would be about (40mg) 8% of your DRI (500mg according to WHO).
I'm sure you've heard so many drinks advertised everywhere, like Gatorade, etc.
The labels often claim they contain electrolytes. but, actually they're loaded with
sugar and only contain 1 kind of electrolyte: Sodium.
Now, don't get me wrong, sodium is very important, especially if you're excercising on a hot day.
In fact, you'll typically sweat out sodium a lot faster than potassium in a hard workout.
But, typically they don't contain any other electrolytes.
With water fasting, you aim to take in as close to 0 calories as possible. So that really
limits our options. But here some of the best:
Creme of tartar
Very high in potassium
Drink something fun with 0 calories
With coffee, we're talking about just coffee, nothing added in. It's pretty darn good, for
nearly 0 calories you can get about 2-4% of your DRI for potassium and magnesium.
Your body works really hard to keep the supply of electrolytes in your body stable,
balancing it by adjusting the amount that gets released through urine and sweat. You can
actually suffer severe side effects if you get way too much or way too little of any of
these important electrolytes.
You could even die. In fact, that's how they used to execute people on death row. They
would inject them with Potassium chloride thus creating a electrolyte im-balance that
the body couldn't recover from.
So, don't overdo it and don't underdo it. Don't worry too much. Your body was made to handle
quite a bit of variation in electrolyte intake.