Ingredient reference

A trace mineral with no official UK target, but a real upper limit once you go looking.

The most abundant mineral in the body. Bone is where 99% of it lives.

The mineral marketed for blood sugar. The form on the label changes how much reaches your cells.

The mineral that zinc can crowd out. Small amount, big role.

Needed for thyroid hormone. Seaweed sources it, but the dose is unpredictable.

Oxygen delivery. The mineral that keeps energy from dropping off a cliff.

Involved in over 300 processes in the body. Most people quietly don't get enough.

A trace mineral for bone and antioxidant enzymes that rarely gets its own headline.

Most people get plenty of sodium and not enough of this. The balance matters more than either alone.

A trace mineral where the gap between not enough and too much is genuinely narrow.

Immune support, wound healing, and a dozen other things the body quietly relies on.

EPA and DHA. The two fatty acids fish oil is actually valued for.

A step from tryptophan to serotonin. Deserves more caution than its shelf placement suggests.

Buffers muscle acid buildup during hard efforts. The tingling on your skin is harmless.

The most-studied sports supplement there is. The body already makes about a gram of it a day.

The simplest amino acid. Used most often for sleep and skin.

Shuttles fat into your cells' power plants. Your body already makes its own supply.

A nitric oxide precursor. More reliable at raising blood arginine than arginine itself.

The body's most abundant free amino acid. Where the evidence sits depends on context.

Found in green tea. Produces a calm kind of alert rather than drowsiness.

The precursor your body needs to make its own master antioxidant, glutathione.

Supplementary protein is well-studied. The source on the tub changes what you're actually paying for.

Every cell has a lot of it. The body makes its own, until it doesn't.

A traditional adaptogen where the branded extract, not the raw herb, carries the evidence.

An arctic root traditionally used against fatigue. Modern research focuses on stress resilience.

The world's most-used stimulant. Most people already know their own limit.

A structural fat your brain cells are built from. One of the few supplements with an FDA-recognised cognitive claim.

A plant alkaloid studied for blood sugar and cholesterol. Absorption is the limiting factor.

Turmeric's active compound. On its own, almost none of it reaches your bloodstream.

Green tea's headline compound. High doses on an empty stomach have caused rare liver injury.

A plant antioxidant found in onions and apples. Standard capsules barely absorb.

The grape-skin compound behind the "red wine is good for you" headlines. Human trials are mixed.

Your body's own bedtime signal. Supplementing it is about timing, not just dose.

A hemp-derived compound, and a different one from what gets you high.

A traditional cold-and-flu remedy that modern trials have found real support for.

The evidence on garlic is real. The form on the label decides how much of it reaches you.

The traditional liver herb. The extract number on the label does most of the work.

Not one supplement but two, doing different jobs under the same name.

An antioxidant that recharges your other antioxidants once they're spent.

The nutrient behind acetylcholine and cell membranes. Most people don't hit the target.

Powers your cells' energy production. Levels fall with age, and statins lower them further.

A building block for cartilage and joint fluid. The sulfate form carries the strongest evidence.

Not one supplement but a category. The strain on the label matters more than the CFU count.