If you have an existing renal disorder, especially in the glomeruli, ask your doctor about it before adding creatine to your diet. For people with normal renal function, adding creatine doesn't appear to be a risk.
It's not going to help much with weight loss, just saying. It's more for people that have bone porosity or sarcopenia, or can't/won't get enough protein in their regular diet.
One last thing before I eject again-- we know that getting your nutrients in the food you eat and drink is more efficient and effective than using additives. One-a-day vitamin pills, creatine and whatnot will help, but not nearly as much as getting everything you need in your regular diet. We don't know why that is, but it's being worked on.
On topic of creatine in individuals who train for strength and performance, studies showed benefits in most areas.
One of a million papers Nutrients | Free Full-Text | Creatine for Exercise and Sports Performance, with Recovery Considerations for Healthy Populations
To me it's a no brainier low cost way to squeeze as much benefit as possible from the work I'm doing anyway.