Last week, I introduced B3 All In, which is the Barre3 fitness and nutrition challenge for the first month of the New Year. The challenge is to work out at least five times a week at Barre3 and participate in their healthy eating and nutrition plans as well. (For more information, please click here.) Now that it’s been another week into the program and we only have a week left, I figured I’d check-in to see how everyone is doing! Comment below if you are also participating in B3 All In or another fitness challenge similar to this one. Last week was the first full week that I had participated in the challenge, since I started after the first week of the month. I started the week strong, going to the 6am Barre3 class Monday through Wednesday. However, Wednesday night our 13 week old puppy did not want to go…