Dr. Katz answers your health and nutrition questions in these 2-minute videos from Vidoyen:
![](https://davidkatzmd.com/wp-content/uploads/2018/02/344-520x360.jpg)
Is Nudge Theory effective in health behaviour change (beyond Gov policies that ban e.g. smoking)?
View Video![](https://davidkatzmd.com/wp-content/uploads/2018/02/1142-520x360.jpg)
What is the single most overrated health (or “healthy”) food going round, and why?
View Video![](https://davidkatzmd.com/wp-content/uploads/2018/02/644-520x360.jpg)
How useful is a food allergy test?
View Video![](https://davidkatzmd.com/wp-content/uploads/2018/02/223-520x360.jpg)
is a no-carb diet healthy?
View Video![](https://davidkatzmd.com/wp-content/uploads/2018/02/1032-520x360.jpg)
Is Zantac safe for nursing moms?
View Video![](https://davidkatzmd.com/wp-content/uploads/2018/02/432-520x360.jpg)