By Alice Hampson It's a New Year, and, if your Instagram algorithm is anything like mine, you've been (quite brutally?!?!) bombarded with ads for diet plans, workout plans, protein powders, collagen supplements, creatine amongst the slew of bizarre 'new year, new you!' messaging. Before you go signing up for some new reset program or the latest fad wellness product, there's something very easy to check on, that could be having a massive impact on how you're feeling. Watch the videos above.