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If you already have a fitness tracker like a FitBit or Jawbone most have a companion app that let's you log food and drink intake.
But there are stand alone apps available like My Fitness Pal.
Enter the name of the meal or scan the barcode to automatically pull in calorie counts.
Macronutrient details are also available.
Keep a visual food journal with an app like Meal Logger.
Take a photo of your food and enter in serving sizes of everything on your plate to help keep tabs on what you eat each day.
The Hidrate Spark is a water bottle with a sensor that automatically measure your H20 intake.
It glows to indicate when you're on track to hit your target, then automatically syncs with a smartphone to chart hydration history.
So the other side of drinking, there's Drink Control.
This app converts alcohol intake into standard measures of alcohol to let you know calorie intake and when you may be over the limit.
In San Francisco, I'm Lexy Savvides, cnet.com for CBS news.
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