Other forms such as methylcobalamin are available as food supplements but are not licensed medicines in the UK and have no proven superiority
That is frustrating for a lot of patients, but it is how many plans still work in 2026
Frequency Twice a week Benefits Weight Loss Appetite Suppression Improves Energy Increases Metabolism Enhances Mood Helps regulate sleep Physician Consent for Treatment A physician may contact you within 24 hours of purchase if additional information is needed

You should contact your GP or diabetes care team if: Cold sensitivity is severe, persistent, or progressively worsening You experience cold intolerance accompanied by other symptoms such as extreme fatigue, constipation, dry skin, hair loss, or unexplained weight gain You develop symptoms suggestive of hypothyroidism (underactive thyroid), which can cause cold sensitivity (note that while GLP-1 receptor agonists have been associated with C-cell tumours in rodent studies, there is no established link to hypothyroidism in humans) [1] [2] You notice signs of anaemia, such as pallor, breathlessness, or palpitations, which can cause cold sensitivity Cold hands or feet are accompanied by colour changes (white, blue, or red), pain, or numbness, which may indicate circulatory problems You experience unexplained fever, chills, or rigors, which could suggest infection You have symptoms of hypoglycaemia (low blood sugar) such as shakiness, sweating, or confusion, especially if you also take insulin or sulfonylureas NICE guidance (NG28) recommends regular monitoring of patients on GLP-1 receptor agonists, including assessment of glycaemic control, weight, and tolerability

This is a red flag warning sign of elevated inflammation and tissue degeneration