Keto Flo Gummies They range from $ , so they are a pretty expensive upfront cost. We recommend that if you’re new to ketosis, you wait to buy one until you’re at a more advanced level. Keto Flo Gummies Review While breath meters are expensive upfront, it is much cheaper than the regular purchases of blood ketone strips. Keto Flo Shark Tank Weight Loss In the long-run, the most economical value for the results would be a breath analyzer – since you can reuse it as many times as you want. Besides being inaccurate if you’ve been in ketosis for a long time, the sticks can also give varying results based on your hydration.