does a b12 injection work straight away Vitamin Injections Why Do You Need B12

[3] The British Society for Haematology guidelines emphasise that the response to treatment should be monitored through clinical assessment and blood count testing, rather than routine measurement of B12 levels after treatment has started

however, these foods typically carry a heavy toxic load

While the best person to diagnose is a doctor, here are some common hair-related symptoms you can look for to determine if you have a deficiency: Excessive hair shedding or thinning hair Dry and brittle hair that is prone to breakage Premature greying of hair Change in hair texture Scalp issues or an unhealthy scalp Apart from the above, watch out for these signs [5] that will tell you if your body is lacking in vitamin B12: Fatigue Anemia Neurological sickness Memory loss Mood changes Depression How to Treat Vitamin B12 Deficiency

Less common, whole-body effects