Answer: Despite its low carbs, this drink mix is non-keto due to its sweeteners.
At only 5 calories per serving and zero carbs, Crystal Light's Pink Lemonade Drink Mix makes an enticing proposition for keto eaters hoping to enjoy a sweet lemonade. Unfortunately this drink mix uses several artificial sweeteners that interfere with ketosis and health eating.
This drink mix contains maltodextrin, which has been shown to increase blood sugar. It also contains aspartame, which won't always affect ketosis, but is generally discouraged as part of keeping keto. Finally, it contains acesulfame potassium, which has been linked to health risks.