Does Sugar Cause Acne? What the Evidence Says

01

What does the acne evidence actually study?

The American Academy of Dermatology describes studies in which a low-glycemic diet was linked to less acne for some participants. Other studies did not find the same result, and more research is needed. Low-glycemic eating considers how the whole pattern of foods affects blood-glucose response; it is not a rule to remove every gram of sugar, whole fruit or all carbohydrates.

02

Why a food diary cannot diagnose acne

Acne can change with time and has several influences. If you swap a sweet snack and your skin improves, the timing does not isolate the cause. A diary can help you remember food choices and dates for a conversation with a dermatologist, but Sweet Off cannot identify a trigger, diagnose acne or predict clear skin.

• Keep notes brief and avoid turning the diary into a restrictive test.
• If acne is persistent, painful or causing scars, ask a dermatologist about treatment.

03

A practical way to compare foods

If you are reducing added sugar for general dietary reasons, compare two versions of a food you already eat, such as plain and sweetened yogurt. Match serving sizes, read the added-sugars figure where available, and check the ingredient list. This is a label decision, not an acne treatment. Whole fruit and plain milk contain naturally occurring sugars and need not be avoided just to lower free-sugar intake.

Sources & further reading

• American Academy of Dermatology: Can the right diet get rid of acne?
• NHS: Sugar—the facts

General educational information; not a medically reviewed treatment plan. Our editorial approach.