Health essentials

Collagen powders are usually hydrolysed into peptides so they dissolve in hot or cold drinks. Labels list the source, such as bovine, marine or chicken, which matters if you avoid certain foods or need to check allergens. Compare the grams of collagen per serving and note whether the powder is flavoured or unflavoured. Ancient Nutrition and Thorne both offer collagen powders.

CoQ10 is sold in two main forms: ubiquinone, the standard form, and ubiquinol, the reduced form. Both are fat-soluble, so they usually come as softgels in oil, and the label will state which form is used and how much is in each serving. Gummy versions, like Nature's Bounty's, are another option. Compare the milligrams of the form you prefer, rather than the capsule size.

Glucosamine is often derived from shellfish, so check the label carefully if you have a shellfish allergy. Greens powders may contain wheatgrass or barley grass, and some products include soy, dairy or other common allergens. Food supplements are not a substitute for a varied diet. If you're pregnant, breastfeeding, taking medication or have a medical condition, check with your GP or pharmacist first.