Walk and move
Regular activity helps manage type 2 diabetes. NHS guidance suggests building towards at least 2.5 hours a week of walking or other activity that makes you breathe harder. Start at a level that suits your mobility and health.
Health
Type 2 diabetes
Useful things you can do yourself, plus current NHS and NICE guidance. Lifestyle and medicines are partners, not rival teams.
Current UK guidance changed in February 2026. NICE now recommends medicine choices partly for cardiovascular and kidney protection, not simply for lowering HbA1c. Do not stop, delay or replace prescribed diabetes treatment on the basis of a website or supplement.
Things with good practical support
Food quality
Build meals around vegetables, pulses, wholegrains and other minimally processed foods that suit you, and make sustainable changes rather than chasing a perfect diet. Weight loss can substantially improve glucose control for some people.
Carbohydrate last?
Eating vegetables/protein before the carbohydrate part of a meal can reduce the immediate post-meal glucose rise. Recent reviews are encouraging, but certainty and long-term benefit are still limited. Treat it as a useful experiment, not a cure.
Know your numbers
HbA1c targets should be individualised. NICE recommends regular HbA1c measurement and discussion of a target that makes sense for the person, their medicines and their risk of hypoglycaemia.
Useful nuances
Vinegar with a meal
Correction: the practical suggestion is about two capfuls, not two cups. The research signal is associated with vinegar/acetic acid rather than apple-cider vinegar specifically, so ordinary food vinegar can be used. Clinical studies use varying measured doses, however, so a bottle cap is not a scientific unit. Think small amount, well diluted, not “more is better”. Vinegar is acidic and may irritate the gut or teeth and can be unsuitable for some people or medicines. It is an adjunct, not a replacement for diabetes treatment.
Systematic review of vinegar and post-meal glucose ↗
More fibre: “an apple a day…”
The old saying “an apple a day keeps the doctor away” is a useful nudge rather than a medical guarantee. Apples provide dietary fibre, including pectin, a soluble/fermentable fibre found in fruit. Soluble fibre attracts water and forms a gel during digestion, while fibre-rich foods can support bowel health and the gut microbiota. Keeping the edible skin also retains more of the fruit's fibre.
NICE encourages higher-fibre foods such as wholegrains, beans and lentils, vegetables, fruit and seeds. Increase fibre gradually if your gut is not used to it, and drink enough fluid.
British Dietetic Association: fibre ↗ · Review: pectin naturally present in apples ↗
Chia pudding belongs here too
Chia is a fibre-rich seed and works naturally in this section. A small randomised trial in people with type 2 diabetes found a reduction in systolic blood pressure but did not find significant improvements in the other measured metabolic outcomes, so chia should be treated as useful food rather than a diabetes cure.
Let swelling fibres meet their water before they meet your throat. Do not swallow dry spoonfuls of chia. Chia can expand dramatically after taking up liquid and there is a published case of oesophageal blockage. Psyllium is another bulk-forming fibre with explicit warnings to mix it with plenty of liquid, and flaxseed should also be taken with adequate fluid. These foods are not identical, but the common-sense rule is: dry swelling fibre + too little liquid is a bad combination.
Overnight chia pudding is a sensible preparation: it gives the seeds plenty of time to hydrate fully and produces the texture people actually want. There is also laboratory evidence that 24-hour water soaking can increase the extractability of chia omega-3/omega-6 lipids. However, we should not claim that “the longer it soaks, the more vitamins and minerals you absorb” as an established human fact. Chia's intact seed structure can limit release of some nutrients, and research suggests milling/grinding can improve access to lipids and protein. Soaking may change nutrient availability, but it can also leach some minerals in plant foods. If nutrient access rather than pudding texture is the goal, ground chia is worth considering too.
Chia trial in type 2 diabetes ↗ · Chia swallowing warning ↗ · Psyllium + fluid guidance ↗ · Flaxseed safety ↗ · 24-hour soaked chia lipid extractability ↗ · Chia processing and nutrient bioaccessibility ↗
Turmeric, black pepper and nigella (black seed)
A little turmeric and black pepper can be used as ordinary food flavouring in a chia pudding. Piperine in black pepper can alter curcumin absorption, but the often-repeated “2,000%” figure comes from a very small human study using 2 g curcumin plus 20 mg piperine, not a pinch of kitchen spice. UK safety reviewers say claims about piperine-enhanced curcumin remain uncertain, particularly for concentrated supplements. We therefore do not present turmeric + pepper as a special treatment for older people or diabetes.
A pinch of Nigella sativa (black seed) can also be a food ingredient. Meta-analyses of supplement trials in type 2 diabetes are promising for fasting glucose and HbA1c, but results are heterogeneous and the doses studied are not equivalent to a culinary pinch. Treat the pinch as food; treat therapeutic-dose black-seed products as supplements that deserve a pharmacist/clinician interaction check.
UK Committee on Toxicity: turmeric/curcumin ↗ · 2025 black-seed meta-analysis ↗
Metformin and vitamin B12
This one is worth knowing. The MHRA says reduced vitamin B12 is a common side effect of metformin, with greater risk at higher doses, longer duration and in people with other risk factors. New neuropathy, marked tiredness, a sore red tongue or anaemia-like symptoms are reasons to ask about testing. That does not mean every person with diabetes needs a general high-dose B-vitamin supplement.
Glycine and other supplements
Glycine is interesting research territory, but there is not enough high-quality clinical evidence to recommend glycine powder as a diabetes treatment. The same rule applies to many supplements: promising mechanism ≠ proven treatment. Ask a pharmacist, GP or diabetes clinician about interactions and whether there is evidence relevant to your particular situation.
Feet, pain and mobility
“Walk more” is useless advice if walking hurts. Diabetes also makes foot problems more important. If flat feet, neuropathy, wounds, balance problems or musculoskeletal pain limit activity, ask for appropriate foot/physio assessment and choose safe alternatives while the problem is addressed. Do not exercise through a new diabetic foot wound.
Medicines are not failure
Lifestyle can sometimes produce major improvement or remission, especially early in type 2 diabetes, but “avoid medication first” is no longer a safe general rule. NICE's 2026 guideline may recommend early medicines because some treatments protect the heart and kidneys as well as lowering glucose. The right question is: what combination of lifestyle, monitoring and treatment gives this person the best long-term outcome?
Useful starting points
NICE NG28: Type 2 diabetes in adults ↗ · NHS Type 2 diabetes ↗ · Diabetes UK ↗