OPTI-MEN Multi-Vitamin

Needed for immune function and healthy skin and gut lining; most people get enough from diet.

Supports immune function and acts as an antioxidant; moderate doses may reduce colds during heavy training, while very high doses may blunt training adaptations.

Vitamin D supports bone, muscle and immune health; deficiency is common in athletes who train indoors or live far from the equator.

An antioxidant vitamin; most people get enough from diet, and high doses offer no performance benefit.

Needed for blood clotting and bone proteins; often paired with vitamin D. Evidence for bone benefits in healthy adults is mixed. Talk to a doctor if you take blood thinners.

A B vitamin involved in turning food into energy; supplementing helps only if your diet is short on it.

A B vitamin involved in turning food into energy; supplementing helps only if your diet is short on it.

A B vitamin involved in turning food into energy; supplementing helps only if your diet is short on it.

Involved in energy metabolism and making neurotransmitters; supplementing helps only if intake is low.

A B vitamin involved in turning food into energy; supplementing helps only if your diet is short on it.

Needed for red blood cells and nerve function; especially relevant for vegans and vegetarians.

A B vitamin involved in turning food into energy; supplementing helps only if your diet is short on it.

A B vitamin involved in turning food into energy; supplementing helps only if your diet is short on it.

Needed for nerve signaling and cell membranes; evidence for performance benefits is limited.

An electrolyte and bone mineral; sweat losses are small compared with sodium.

Magnesium supports muscle and nerve function and sleep; many athletes fall short of the recommended intake. Supplementing helps mainly when intake is low. Glycinate and malate forms are well absorbed and gentle on the stomach.

Zinc supports immune function and tissue repair; athletes lose some in sweat. Helpful if your diet is low in it.

A trace mineral that supports antioxidant enzymes and thyroid function; most diets provide enough.

A trace mineral needed for iron metabolism and connective tissue; most diets provide enough, and high zinc intakes can lower copper.

A trace mineral involved in bone formation and antioxidant enzymes; deficiency is rare.

A trace mineral marketed for blood sugar control and body composition; trials show small or no effects in healthy people.

A trace mineral used by a few enzymes; deficiency is very rare and diets usually provide enough.

Sodium is the main electrolyte lost in sweat; replacing it supports fluid balance in long or hot sessions.

A blend of amino acids; check it provides the essential ones at useful doses, or a protein serving does the same job.

A blend whose individual ingredient amounts aren't disclosed on the label, so the dose of each can't be checked against the research.

A blend whose individual ingredient amounts aren't disclosed on the label, so the dose of each can't be checked against the research.

Enzymes marketed for digestion or recovery; evidence for sport benefits is limited.

An antioxidant involved in energy metabolism; evidence for sport benefits is limited.

Studied mainly for hormonal conditions such as PCOS; evidence for sleep or sport is limited.

A trace mineral studied for bone and joint health and hormones; human evidence is limited and mixed.

A carotenoid plant pigment studied for eye (lutein) or heart (lycopene) health; evidence for athletes is limited.

A carotenoid plant pigment studied for eye (lutein) or heart (lycopene) health; evidence for athletes is limited.

A trace mineral studied for blood sugar; evidence in healthy people is lacking.

A carotenoid plant pigment studied for eye (lutein) or heart (lycopene) health; evidence for athletes is limited.