Table 5.

Tweet Content and Frequency of Themes

Tweet Themes	No. of Tweets* n (1646)	Example Tweets and Retweets
Diet/Nutrition	565 (34%)	1. RT @[ ]: Add some green to your diet with some delicious #avocados! 2. My grandmom would put a ham bone in water and make soup. #health curious about this.
Exercise	227 (14%)	1. RT @[ ]: Grab a friend or family member and help each other meet your fitness goals! #exercise #HealthyLiving 2. #health getting in shape hurts,but it’s worth it
Heart health	357 (22%)	1.RT @[ ]: Some #hearthealthy options for #SuperBowl2018! Don’t indulge too much! #HeartHealthMonth 2. @[ ]I’m keeping a positive mind for a healthier heart
Hypertension	97 (6%)	1.RT @[ ]: Interesting article! It’s important to monitor your #BloodPressure and to take care of your #teeth! #HealthyLiving #hy 2. Take a walk everyday to help with your blood pressure #health!
Diabetes	123 (7%)	1.RT @[ ]: Keep active in any way that you can & check for symptoms of prediabetes! #diabetes #exercise 2. @[ ] After stopping the predisone, I’ve lost 5 lbs in a week! #diabetes
Stroke	48 (3%)	1.RT @[ ]: You can prevent a #stroke! Learn how and know your #Risk! 2. RT @[ ]: Alexa can now help you perform CPR and help you recognize signs for #heartattack and #stroke! https://t.co/Rmjn9tSshe
News	731 (44%)	1.RT @[ ]: Some news from the NIH helping us all to eat #healthy food portions; a great way to stay #hearthealthy! 2. 5 Activities Can Cause Neck and Shoulder Pain – Penn Medicine https://t.co/hKcTbWQ3c2? #health #p[ ]
Risk factors	21 (1%)	1. RT @[ ]: Protect your liver! Learn more about how to detect risks for certain liver issues! #Knowledgeispower https://t.co/z3tBnv 2. RT @[ ]: A good excuse to eat chocolate today! Nutrients in cocoa beans can improve heart disease risk factors! #heartdisease #c
Motivation	33 (2%)	1.RT @[ ]: Optimism is good for your health!! #PositiveVibes #positivity 2. RT @[ ]: Actions speak louder than words is a good motto to live by. Act in accordance with what you say. #FridayFeeling https
PHI*	35 (2%)	1. @[ ] My bp is 127/74. Hooray 2. @[ ] I received my transplanted heart on [ ]. So I will be celebrating my 7th year out in a couple of days. Yeh!
Mental health	76 (5%)	1. RT @[ ]: #mentalhealth is also very important to keep track of! There's never any shame in seeking assistance for mental health 2.I’ve been experiencing a lot of this lately. Important info on how #stress affects #health and what to do about it
Politics	6 (.4%)	1.RT @LPNational: How #Obamacare Is Fueling America’s #Opioid Epidemic \n #health #drugwar #ACA #healthcare #OpioidEpid 2.TAKE ACTION! Tell Congress to Shift Farm Bill Subsidies to Healthy Foods! #FarmBill #Health

PHI indicates protected health information.

^*Tweets could contain more than 1 theme.