Benefits
Helps bridge the produce gap
Most people fall short of USDA fruit and vegetable targets. Because TruServ is dehydrated whole produce rather than an isolate, it adds real fruit and vegetable material to everyday foods, drinks, and supplements. What is substantiated is the accounting: FutureCeuticals links its own production data to the USDA nutrient database to support the serving claim printed on a finished label. Whether a serving-equivalent of powder does for health what a serving of fresh produce does has not been tested for TruServ, and in trials of other companies' fruit and vegetable concentrates the results have been mixed: in 64 adults with metabolic syndrome, 8 weeks of a concentrate changed neither blood-vessel function nor glucose, insulin, lipids, or weight.
Supplies antioxidant phytonutrients
Whole fruits, berries, and dark greens naturally contain polyphenols, anthocyanins, and carotenoids. In trials of other companies' encapsulated fruit and vegetable concentrates, several blood markers of oxidation fell over 8 to 28 weeks of daily use. No oxidative-stress marker has been measured in anyone taking TruServ, and how much of any phytonutrient a person actually gets depends entirely on which blend a finished product uses and how much of it is in there.
Adds naturally occurring vitamins and fiber
Because it is dehydrated whole produce rather than an isolate, TruServ contributes dietary fiber and food-form micronutrients such as folate and provitamin-A carotenoids as part of a varied diet. Amounts vary widely by blend and inclusion rate, and drying can reduce heat- and oxygen-sensitive nutrients such as vitamin C, so a powder does not necessarily carry the same nutrient profile as the fresh produce it was made from.
Contributes to a produce-forward eating pattern
A produce-rich eating pattern is broadly associated with better wellness in observational studies of people who eat that way. Whole fruit and vegetable powders add produce-derived material to that pattern. No immune outcome has been measured in anyone taking TruServ, and in a five-month placebo-controlled trial of a comparable dried fruit and vegetable supplement in 57 women, immune markers did not change.
Mechanism of action
Whole-food phytonutrient delivery
Gentle dehydration of whole fruits, berries, and greens retains a native matrix of polyphenols, anthocyanins, flavonols, and carotenoids alongside fiber, delivering these compounds in food form rather than as purified isolates.
Antioxidant and redox support
In laboratory work, dietary polyphenols and carotenoids scavenge reactive oxygen species and modulate endogenous antioxidant pathways such as Nrf2-linked responses. This is the proposed explanation for the changes in oxidation markers seen with other companies' fruit and vegetable concentrates; it has not been measured with TruServ.
Micronutrient and fiber contribution
Food-form folate, vitamin C, provitamin-A carotenoids, and soluble/insoluble fiber contribute to one-carbon metabolism, normal antioxidant vitamin status, and gut transit, mirroring effects seen when overall fruit and vegetable intake rises.
Clinical trials
Randomized double-blind crossover trial, 32 men, two 6-week periods (Samman et al., 2003, Journal of Nutrition; PMID 12840177, https://pubmed.ncbi.nlm.nih.gov/12840177/). The product tested was Juice Plus+, an encapsulated juice powder concentrate made by a different company. Borrowed class evidence, not a TruServ trial.
32 healthy adult men (13 smokers, 19 non-smokers), mean compliance 88%
Compared with placebo, the concentrate raised plasma beta-carotene, retinol, alpha-tocopherol, vitamin C and folate, and lowered homocysteine from 8.2 to 7.6 micromol/L. Blood lipids, glucose and insulin were unchanged, and total antioxidant capacity (FRAP) only trended upward (P = 0.065). A small crossover study of another company's juice concentrate: it shows the capsules delivered nutrients into the bloodstream, not that any health outcome changed.
Randomized double-blind placebo-controlled trial (Lamprecht et al., 2013, British Journal of Nutrition; PMID 23591157, https://pubmed.ncbi.nlm.nih.gov/23591157/). The product tested was Juice Plus+ Premium, an encapsulated juice powder concentrate from a different company, and the study was funded by that product's manufacturer, NSA LLC. Borrowed class evidence, not a TruServ trial.
42 obese pre-menopausal women over 8 weeks
Versus placebo, 8 weeks of the juice powder lowered protein carbonyls, oxidised LDL, total oxidation status and TNF-alpha, and increased skin capillary blood flow and haemoglobin oxygen saturation. The improvements in circulation from a single bout of walking occurred independently of the supplement, and IL-6 stayed below the assay's reference cut-off throughout. These are blood and skin markers rather than health outcomes, in a manufacturer-funded study of a different company's product.
Systematic review and dose-response meta-analysis of 95 prospective observational cohort studies, 142 publications (Aune et al., 2017, International Journal of Epidemiology; PMID 28338764, https://pubmed.ncbi.nlm.nih.gov/28338764/). Not a clinical trial and not a study of any supplement: it measured how much fruit and vegetables people ate as food.
Adults in 95 prospective cohort studies (142 publications) who reported their dietary fruit and vegetable intake
Each additional 200 g/day of fruit and vegetables eaten was associated with lower risk of cardiovascular disease (RR 0.92, 95% CI 0.90-0.95), total cancer (RR 0.97, 95% CI 0.95-0.99) and death from any cause (RR 0.90, 95% CI 0.87-0.93), with risk still falling up to about 800 g/day for cardiovascular disease and mortality and up to 600 g/day for cancer. These are observational associations for produce eaten as food. No trial has shown that a dehydrated produce powder reproduces them, and a crossover trial that tested fruit and vegetable concentrates against a functional endpoint (flow-mediated dilatation in 64 adults with metabolic syndrome) found no effect.