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💥 Elevate your fast with nature’s purest electrolyte boost!
Fast Lyte Fasting Electrolyte Supplement Powder delivers a potent blend of 1175mg potassium, 575mg sodium, 100mg marine-sourced magnesium, 25mg calcium, and over 74 trace minerals in a sugar-free, unflavored formula. Designed for fasting, keto, and clean diets, it offers superior hydration and mineral support without fillers or sweeteners, leveraging bioactive minerals from pristine natural sources to optimize electrolyte balance and metabolic health.









| ASIN | B0BDLT1HFM |
| Age Range Description | Adult |
| Best Sellers Rank | #12,391 in Health & Household ( See Top 100 in Health & Household ) #161 in Sports Nutrition Electrolyte Replacement Drinks |
| Brand | FAST LYTE |
| Brand Name | FAST LYTE |
| Customer Reviews | 4.5 out of 5 stars 1,230 Reviews |
| Diet Type | Gluten Free, Paleo, Vegan |
| Flavor | Unflavored |
| Item Form | Powder |
| Item Nype Name | Fasting electrolyte salts supplement containing potassium and magnesium |
| Item Weight | 600 Grams |
| Manufacturer | FAST LYTE LLC |
| Manufacturer Part Number | K Na Mg Ca + MMC |
| Model Number | FL-BLUE |
| Number of Items | 1 |
| Primary Supplement Type | Electrolytes |
| Product Benefits | High concentration electrolytes powder that hydrates the body with no sugar. Ideal for fasting, keto, vegan, or any diet Product Benefits High concentration electrolytes powder that hydrates the body with no sugar. Ideal for fasting, keto, vegan, or any diet See more |
| UPC | 196852472581 |
| Unit Count | 21.0 Ounce |
S**E
Not salty tasting
Like these. They actually don't taste salty to me. Very mild taste can easily mix it in with other things than water if you arent fasting. I havent used them for fasting yet. Just daily electrolytes.
C**H
Amazing!
The price is fantastic per serving, way better than the only other brand of non flavored non sweetened electrolyte power on the market. I've been using this for this last year for everything from hiking/backpacking to keeping the throat lubricated singing on my parish choir. I actually quite enjoy the salty taste personally but I'll admit I'm likely an outlier there. Also not making medical claims here so grain of salt (har har), but I feel like this stuff helps me regulate my blood sugar better, especially when doing longer fasting (I'm not diabetic but mildly hypoglycemic). I'd give it a 10/5 if I could it's honestly that good and the price can't be beat.
E**C
It's pretty good, and has more potassium relative to sodium than most other similar products.
It has quite the array of minerals and trace elements, but the largest in quantity contained in the package is potassium, which is good. Some have stated that it is more salty than lmnt, which is impossible according to the laws of thermodynamics and basic physics. If you can do elementary math and ratios, you will see that it contains far more potassium relative to sodium, while lmnt has far more sodium relative to potassium. You don't even have to buy the product to find this out, the nutrition labels are available in the Amazon listings. Lmnt is not a good product for me because it contains too much salt relative to the rest of the minerals, and I get enough salt in my diet from food. This product called fasting electrolytes, I take it even though I'm not fasting. The extra potassium and magnesium help keep me from developing muscle cramps especially at night. The taste is not particularly good, it's just minerals and no sweeteners. But I add in small amounts to my lemon water throughout the day, or a little bit in my coffee. I'm pleased with the product, and will continue to order.
A**A
Salty because it's salt. Put it in something sweet!
So OF COURSE this stuff is gonna be extremely salty. Anyone who is surprised by that just did not know what they were ordering. I put this in my daily lunch smoothie and it tastes amazing. My smoothie is as follows: 1 scoop sixstar protein powder 1 cup frozen fruit (mixed berries if using chocolate powder, tropical blend if using vanilla) 3 handfuls of spinach 1/2 cup dry oats 2 tbs ground flax 1/2 cup vanilla oikos triple 0 3/4 cup coconut water 1 4cc scoop of electrolyte powder 14 ice cubes This results in a 32oz smoothie and the umami/sweet flavor combo is addictive. Literally the highlight of my day!
C**S
A bit too much salt for me but it's good
Editing my original review. Although it does have too much salt for me it appears my issues that I attributed to the supplement are based on something else. The supplement is fine if you don't mind the amount of salt. I am doing an extended fast and the symptoms I was experiencing were related to that.
G**Y
Helps with the cramps
After years of fasting, I finally found a solution to the cramps. This stuff works, almost immediately. Highly recommend. Also, it taste like salt. No way around it.
M**E
Nicely Balanced Electrolytes, Unflavored, Unsweetened
I have purchased and used at least four different electrolyte powders including a favorite brand of YouTube influencers. Some have no sodium at all. The influencer brand has way too much sodium for my level of physical activity. This supplement powder, however, has a nice balance of sodium, potassium, and magnesium with a token but meaningful amount of calcium. There are flavored brands that contain sweeteners that I find cloying and which actually make me feel fatigued because they evidently stimulate insulin production. This is highly counterproductive when one is trying to fast because higher insulin also stimulates appetite. Fortunately, this brand does not flavor or sweeten. Finally, there is the question of packaging. There's another brand that is quite similar in its formulation, which would be my favorite, but the amount in the bag is about half as much. This would not be a big problem except it is hard for me to extract a measured amount from the bag since the bag of that brand is too small to fit my hand into. This ends up causing a lot of fiddling to extract the product from the last third of the bag. In this brand, the bag is nominally the same face dimension, but it contains nearly twice as much powder, meaning the problem persists for about half as long as a percentage of product life. A longer handled scoop would help in both cases. And maybe one with a boat-shape so one can scoop out of the crevices at the fold. There are some keto salts that eschew sodium altogether which may have a place in a keto practice, but I find this moderate sodium version to taste better and to be more satisfying. As a person who does little vigorous exercise and does frequent fasting of various durations, I find FastLyte supplement powder to be ideally suited for my keto-inspired lifestyle.
M**Y
Clean Electrolytes
Highly recommended! No stevia or “natural flavors” added and no bad taste, either. It’s main but totally easy to drink. I went without electrolytes for a few days and WOW could I feel it! This isn’t just one of those supplements one takes wondering if it’s actually doing anything. IT REALLY DELIVERS! Great price, too!
O**R
REALLY salty...yuck!
REALLY salty/hard to drink, but the incredients are good. I use it on my multi-day fasts.
A**R
best value real electrolytes
Best value real electrolytes that I have found and used. So much expensive garbage out there with extremely small amounts of potassium and sodium, I am glad this exists and will continue buying for years to come.
A**A
Helpful
It’s really helpful, I really feel different every time when I drink it , it’s really helping with my keto diet , I don’t feel Daisy and weak anymore
C**L
IT WORKS
This stuff tastes BAD, let it be said, if you are expecting some sugary / glucose / aspartame / stevia slop, you won't find that here, this stuff tastes like sea water or maybe slightly worse. However if you are searching around for a CLEAN effective electrolyte that isn't filled with random chemicals this is exactly what you want, it is a pure combination of different salts that does exactly what you want.
M**D
Speedy delivery
WE placed our order on Monday and received delivery on Tuesday. We love these electrolytes, best on the market. Expensive but does not contain sugar or colors and flavours. Taste takes some getting used to but when you can handle it you'll love it.
Trustpilot
3 weeks ago
1 month ago