Lemons are also keto-friendly, so go ahead and add a spritz of lemon juice to your ice water. One typical lemon wedge has about 0.5 g of net carbohydrates and only 0.2 g of sugar. The fruit also offers 3.7 mg of vitamin C, which is 6.2 percent of the DV.Click to see full answer. In respect to this, does lemon juice break a keto fast?Lemon water will not spike your insulin, it will not break your fast, instead it will do the OPPOSITE! So despite what you may think, lemon water is actually very healthy and also aids the fasting process which is why I recommend you give it a go!Subsequently, question is, what milk is best for keto diet? Almond, coconut, and cashew milks make for great choices if you want to mix things up, as they contain 1 g (or less) of carbs per cup. Just be sure to always read the nutrition label closely and choose unsweetened varieties. Also asked, how many net carbs are in lemon juice? One whole lemon contains 17 calories and just over five grams of carbohydrate. The carbs are primarily fiber (1.6 grams) and sugar (1.5 grams).Can you drink lemon water while doing intermittent fasting?definitely drink water during your fasting windows. Water is always a great choice, all day long, every day. It can be still or sparkling, whatever you enjoy. If you prefer lemon water, you can also add a squeeze of lemon (or lime) to your water.