How to lower blood sugar naturally
By Dr (TCM) Attilio D'Alberto | Traditional Chinese Medicine Practitioner, Wokingham
On this page
- Overview
- Why blood sugar matters
- The TCM understanding (Xiao Ke)
- Diet
- Exercise
- Sleep and stress
- Supplements with evidence
- Chinese herbal medicine
- Acupuncture
- Monitoring
- Frequently asked questions
1. Overview
Blood sugar dysregulation — from insulin resistance through prediabetes to type 2 diabetes — is one of the most significant metabolic challenges of modern life, and one with direct implications for hormonal health, PCOS, fertility, weight, energy and long-term cardiovascular and cognitive risk. Traditional Chinese medicine has recognised and treated this pattern for centuries, describing it as Xiao Ke (Wasting and Thirsting disease) — and the herbal and lifestyle approaches developed over millennia are increasingly validated by modern research. I am Dr (TCM) Attilio D’Alberto, with over 25 years of clinical experience.
2. Why blood sugar matters
Persistently elevated blood glucose and insulin damage blood vessels, drive inflammation, accelerate ageing and underlie:
- Type 2 diabetes and its complications (eye, kidney, nerve, cardiovascular)
- Insulin resistance and central weight gain (see hormonal weight gain)
- PCOS and ovulatory infertility (see how to get pregnant with PCOS)
- Fatty liver disease
- Chronic fatigue and energy crashes
- Skin tags and acanthosis nigricans (dark velvety patches)
- Polycystic acne
- Cognitive decline and Alzheimer’s disease (sometimes called “type 3 diabetes”)
The good news: insulin resistance is highly reversible with diet, exercise and targeted intervention — particularly in the prediabetic stage.
3. The TCM understanding (Xiao Ke)
Blood sugar dysregulation in TCM most commonly reflects Spleen qi deficiency — the Spleen’s failure to properly transform and transport food, resulting in glucose accumulating in the blood rather than being converted into usable qi. As the condition progresses, Kidney yin deficiency develops, producing the classic Xiao Ke triad of excessive thirst, hunger and urination.
- Upper Xiao Ke — thirst dominant; Lung yin deficiency with heat
- Middle Xiao Ke — hunger dominant; Stomach yin deficiency with heat
- Lower Xiao Ke — frequent urination dominant; Kidney yin and yang deficiency
Liver qi stagnation and damp-phlegm — particularly relevant in metabolic syndrome — amplify insulin resistance and add complexity to the picture.
4. Diet
Diet is the highest-leverage intervention. The pattern that consistently improves blood sugar:
- Low-glycaemic-load eating — build meals around protein, healthy fat and fibre. Avoid refined carbohydrates and sugar.
- Adequate protein at every meal — 25–40 g per meal; supports satiety, blood sugar and lean muscle.
- 30+ g fibre per day — particularly soluble fibre (oats, psyllium, ground flaxseed, legumes) which slows glucose absorption.
- Mediterranean pattern — oily fish, leafy greens, olive oil, nuts, legumes, berries; the strongest evidence base for diabetes reversal.
- Eliminate sugary drinks — including fruit juice; the single most rapid improvement in glucose control.
- Reduce ultra-processed food — correlates strongly with insulin resistance.
- Time-restricted eating — 12–14 hour overnight fast helps insulin sensitivity in many.
- Vinegar before carbohydrate meals — 1 tablespoon apple cider vinegar in water before meals can blunt the post-meal glucose spike.
- Eat vegetables and protein first — before any carbohydrate; reduces the post-meal glucose spike.
- Limit alcohol — impairs liver glucose handling.
5. Exercise
- Strength training 2–3 times a week — muscle is the body’s biggest glucose sink; building muscle directly improves insulin sensitivity.
- Daily walking — particularly a 10–15 minute walk after meals, which significantly blunts the post-meal glucose spike.
- Moderate aerobic exercise 2–3 times a week.
- Avoid prolonged sitting — even regular short movement breaks improve glucose handling.
6. Sleep and stress
Sleep loss and chronic stress both worsen insulin resistance. Even one week of 5-hour nights produces measurable insulin resistance in healthy people. Aim for 7–9 hours per night with a consistent schedule. Daily stress-reduction practices (meditation, breathwork, yoga) lower cortisol, which is itself a major driver of insulin resistance. See also cortisol and stress.
7. Supplements with evidence
- Berberine (500 mg 3x/day) — the strongest single supplement evidence for blood sugar; multiple RCTs show effects comparable to metformin.
- Magnesium glycinate (300–400 mg/day) — deficiency is widespread and worsens insulin resistance.
- Inositol (myo + d-chiro 40:1, 4 g/day) — particularly useful in PCOS-related insulin resistance.
- Chromium picolinate (200–400 mcg/day) — supports insulin signalling.
- Vitamin D — deficiency worsens insulin resistance; supplement to a level of 75–125 nmol/L.
- Omega-3 (1,000+ mg combined EPA/DHA) — reduces inflammation associated with insulin resistance.
- Cinnamon (1–6 g/day) — modest effect on fasting glucose.
- Alpha-lipoic acid (300–600 mg/day) — supports glucose metabolism and reduces diabetic neuropathy.
- Probiotic — supports the gut microbiome which regulates glucose handling.
8. Chinese herbal medicine
Several Chinese herbs have strong clinical evidence for blood sugar regulation:
- Huang Qi (astragalus) — improves insulin sensitivity and reduces fasting glucose
- Huang Lian (coptis, containing berberine) — RCT evidence for reducing HbA1c comparable to metformin
- Shan Yao (Chinese yam) — nourishes Spleen and Kidney; specifically used in Xiao Ke
- Gou Qi Zi (goji berries) — nourishes Kidney yin
- Mai Men Dong (ophiopogon) — nourishes yin; for the Upper Xiao Ke pattern
Common formulas: Liu Wei Di Huang Wan for Kidney yin deficiency, Yu Quan Wan (a classical Xiao Ke formula), and individually tailored prescriptions. I prescribe pharmaceutical-grade granules from Sun Ten in Taiwan.
9. Acupuncture
Acupuncture improves insulin sensitivity and glucose metabolism through effects on the autonomic nervous system, hypothalamic regulation and the gut-brain axis. Studies show measurable reductions in fasting glucose, HbA1c and insulin resistance with regular acupuncture treatment, particularly when combined with diet and lifestyle change.
10. Monitoring
If you are working on blood sugar:
- Get a baseline fasting glucose, fasting insulin and HbA1c blood test
- Calculate HOMA-IR (a measure of insulin resistance)
- Repeat at 3 months to track progress
- Consider a continuous glucose monitor for 2 weeks to identify your individual food triggers (now widely available without prescription)
- Track waist circumference and weight
- Get a lipid panel and liver function (insulin resistance often co-exists with raised triglycerides and fatty liver)
11. Frequently asked questions
How can I lower my blood sugar naturally?
The highest-leverage interventions are: low-glycaemic-load diet with adequate protein and 30+ g fibre, daily walking (especially after meals), strength training 2–3 times a week, eliminating sugary drinks, 7–9 hours of sleep, stress reduction, berberine 500 mg 3x/day and magnesium 300–400 mg/day. Acupuncture and Chinese herbal medicine add a meaningful further layer.
What is the best supplement for blood sugar?
Berberine has the strongest evidence, with RCTs showing effects on HbA1c comparable to metformin. Combine with magnesium, inositol (particularly for PCOS), vitamin D and omega-3 for the strongest stack.
Can Chinese medicine help diabetes?
Yes — Chinese medicine has treated Xiao Ke (the TCM equivalent of diabetes) for over 2,000 years. Several Chinese herbs (Huang Lian, Huang Qi, Shan Yao) have RCT evidence for glucose regulation. Treatment works alongside conventional diabetes care.
How fast can I lower my HbA1c?
HbA1c reflects the previous 3 months of glucose, so changes show up over that timeframe. Significant reductions of 1–2% are achievable in 3 months with consistent dietary and lifestyle change.
What is the best diet for insulin resistance?
A Mediterranean-style anti-inflammatory diet with stable blood sugar, adequate protein, 30+ g fibre, plenty of vegetables, oily fish and olive oil. Avoid refined carbohydrates, sugary drinks and ultra-processed food. Eat vegetables and protein before carbohydrates at each meal.
Does acupuncture help with diabetes?
Yes. Acupuncture improves insulin sensitivity, reduces fasting glucose and HbA1c, and reduces inflammation associated with metabolic syndrome. It works alongside conventional diabetes treatment.
To discuss blood sugar regulation, contact me or book a consultation at my Wokingham, Berkshire clinic.
