The 27 supplements VitSync works with

Each one is backed by published research, GB-authorised health claims where applicable, and linked to a premium brand on Amazon. VitSync only recommends an ingredient once your signals support it. This page is the full menu.

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Vitamin D3

10–25 µg · cholecalciferol

Contributes to normal bone function and immune health. NHS recommends 10 µg daily in autumn and winter for UK adults. Fat-soluble, so take with a meal containing some fat.

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Magnesium

200–400 mg · citrate or glycinate

Contributes to normal muscle function, energy metabolism, and the reduction of tiredness. Often lower in people who train hard or eat few leafy greens. Works well in the evening.

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Vitamin C

500–1000 mg

Contributes to normal immune function and protects cells from oxidative stress. Also improves non-haem iron absorption. Useful if you take iron or eat plant-based.

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Zinc

10–15 mg

Contributes to normal immune function, healthy skin, hair and nails, and normal testosterone levels in the blood. Take away from iron and calcium; they compete for the same transporter.

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Vitamin K2 (MK-7)

100–200 µg · MK-7

Directs calcium to bone and teeth rather than soft tissue, and pairs naturally with Vitamin D3. Contributes to normal blood clotting and bone maintenance. Not suitable if you take anticoagulants.

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Electrolytes

1 tablet in water · when needed

Sodium, potassium, and magnesium replaced during training, travel, or hot weather. Research supports use around exercise or when sweat loss is significant. Not a daily supplement for most people.

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Folic acid

400 µg

Contributes to normal maternal tissue growth in pregnancy, blood formation, and homocysteine metabolism. NHS recommends 400 µg daily for anyone who could become pregnant.

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Vitamin B12 (methylcobalamin)

250–1000 µg · sublingual

Contributes to normal energy metabolism, nervous system function, and the reduction of tiredness. Absorption drops with age and on plant-based diets. Sublingual form bypasses stomach acid needs.

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Vitamin B6

25 mg · pyridoxine HCl

Contributes to normal protein and energy metabolism, nervous system function, and the regulation of hormonal activity. We stick below 100 mg. Higher doses long-term can affect nerves.

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Omega-3 (EPA/DHA)

1000–2000 mg combined EPA + DHA

DHA contributes to the maintenance of normal brain function and vision. EPA + DHA support normal heart function. Research-backed for resting heart rate and triglyceride profiles at adequate doses.

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Ashwagandha (KSM-66)

300–600 mg

Research suggests adaptogenic effects on stress markers and sleep quality at trialled doses. KSM-66 is the most-studied standardised extract. Not suitable during pregnancy or with thyroid medication.

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Iron (ferrous fumarate)

14 mg

Contributes to normal formation of red blood cells, oxygen transport, and the reduction of tiredness. Often lower in menstruating women. VitSync only recommends iron after review. Excess is harmful.

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Creatine monohydrate

3–5 g

The most-researched sports supplement. Evidence supports gains in strength, power output, and recovery with resistance training. Creapure is the recognised purity standard.

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Collagen peptides

5 g · hydrolysed marine (Type 1)

Research suggests benefits for skin elasticity, hydration, and joint comfort at 5–10 g daily. Hydrolysed peptides are the best-absorbed form; marine collagen (Type 1) is the most-studied for skin. Powder mixes into coffee, smoothies or porridge.

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Probiotics (multi-strain)

20 billion CFU · 5 strains

Specific strains show evidence for gut comfort, bowel regularity, and antibiotic recovery. Multi-strain formulas hedge against strain-specific effects. Not suitable if immunosuppressed.

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CoQ10 (ubiquinol)

100 mg

Involved in cellular energy production. Levels decline with age and can be lowered by statin use. Ubiquinol is the pre-converted, more-bioavailable form. Fat-soluble, so take with food.

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Vitamin A (beta-carotene)

25,000 IU · beta-carotene (from algae)

Contributes to normal vision, immune function, and the maintenance of skin. Beta-carotene is converted to retinol as needed by the body, so it doesn't carry the same upper-limit risk as preformed retinol. Not suitable for smokers. Opt for preformed retinol sources instead.

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Selenium

100–200 µg

Contributes to normal thyroid function, immune function, and the protection of cells from oxidative stress. UK soils are relatively selenium-poor, so dietary intake can be marginal.

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Turmeric / Curcumin

500 mg with piperine

Curcumin has research support in inflammation and joint comfort. Piperine (from black pepper) multiplies absorption many-fold. Take at least 2 hours away from iron. They can bind.

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Myo-Inositol

4 g · 40:1 myo : D-chiro

Research suggests myo-inositol supports hormonal balance, cycle regularity and insulin sensitivity, particularly in women with PCOS. The 40:1 myo-to-D-chiro ratio is the most-studied formulation. Safe in pregnancy.

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NAC (N-Acetylcysteine)

600 mg

Research suggests NAC supports ovulation and insulin sensitivity in PCOS, plus broader roles in glutathione production and respiratory health. Antioxidant backbone of many PCOS protocols.

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Chromium

200 µg · picolinate

Contributes to normal macronutrient metabolism and the maintenance of normal blood glucose levels. Emerging research for sugar cravings and insulin sensitivity in PCOS.

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Alpha-Lipoic Acid

600 mg

Research suggests alpha-lipoic acid supports insulin sensitivity and peripheral nerve function. Fat- and water-soluble antioxidant, often stacked with myo-inositol for metabolic PCOS.

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Maca Root

1000 mg · organic

Research suggests maca root supports energy, mood and menopausal wellbeing. Peruvian adaptogen that works via the HPA axis, not a phytoestrogen. Avoid during pregnancy.

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Vitex (Chasteberry)

1000 mg

Research suggests vitex supports cycle regularity and PMS symptoms by nudging pituitary prolactin–progesterone balance. Avoid during pregnancy, breastfeeding, or while on hormonal contraception.

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Berberine

1500 mg · split 3× daily

Research suggests berberine supports insulin sensitivity and metabolic markers, particularly in PCOS. Significant drug interactions (CYP3A4). Check with your doctor before starting if you take any prescription medication.

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L-Theanine

200 mg

Research suggests L-theanine, an amino acid found in tea, supports a calm, focused state and sleep quality without sedation. Often paired with caffeine to take the edge off jitters while keeping alertness. Well tolerated at 200 mg. Not suitable during pregnancy or breastfeeding.

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