Congestión (linfática)

ALA is the plant-based omega-3 precursor found in flaxseed, chia, and walnuts—foods often also avoided by picky eaters. As a component of the omega-3 gap in picky eating, ALA supplementation (e.g., from flaxseed or algal oils) is recommended when fish intake is absent and conversion to DHA is insufficient.

Beta-carotene is the provitamin A carotenoid that serves as a safe precursor to vitamin A supplementation in picky eaters. Vitamin A deficiency is documented in picky eating children who avoid orange/yellow vegetables and dairy. Beta-carotene is preferred over preformed retinol in children's supplements due to its favorable safety profile.

Calcium deficiency is a significant concern among picky eaters, particularly those avoiding dairy products. Studies confirm a high prevalence of calcium inadequacy in picky eating children, with calcium being essential for bone development. Clinical trials show >50% reduction in calcium intake inadequacy following ONS supplementation.

Choline is identified in nutritional deficiency reviews of school-aged children as a nutrient commonly insufficient in selective eaters. It is essential for brain development, neurotransmitter synthesis, and liver function. Picky eaters avoiding eggs, liver, and meat are at risk of suboptimal choline intake.

DHA is a critical omega-3 fatty acid for brain and eye development that is found almost exclusively in fatty fish and seafood—foods commonly refused by picky eaters. Pediatric nutrition authorities recommend DHA supplementation for children with limited fish intake. It is explicitly listed among top picky eater nutrient gaps.

Folic acid (folate/vitamin B9) is documented as deficient in picky eating children in clinical trials. A 6-month RCT of oral nutritional supplementation in picky eaters showed significant reduction in folate intake inadequacy in the supplemented group. Folate is essential for cell division and DNA synthesis.

FOS is a prebiotic fiber explicitly included in oral nutritional supplement formulas clinically tested in randomized controlled trials for picky-eating children. Picky eaters consume less fiber due to fruit and vegetable avoidance. FOS supports gut microbiome balance and enhances calcium absorption, both relevant to picky eater nutrition.

Iron is the most common nutritional deficiency among children globally and is particularly elevated in picky eaters who avoid red meat and animal proteins. Iron deficiency impairs oxygen delivery, cognitive function, and emotional regulation. A 6-month RCT of oral nutritional supplementation in picky eating children documented significant improvement in iron intake inadequacy.

Magnesium is identified in authoritative dietary reviews as a nutrient commonly deficient in picky eaters who avoid nuts, seeds, whole grains, and leafy greens. Insufficient magnesium intake is linked to sleep disturbances, mood changes, and impaired muscle function in children.

Omega-3 fatty acids (EPA and DHA) are among the most consistently cited nutrient gaps in picky eaters, who frequently avoid fatty fish and seafood. Multiple pediatric nutrition reviews and authoritative guidelines recommend omega-3 supplementation for fish-refusing picky eaters. Fish oil or algal oil supplements are commonly recommended.

Vitamin A deficiency is documented in picky eating children, particularly those avoiding fruits, vegetables, and dairy. A clinical RCT of oral nutritional supplementation in picky eaters showed a >50% reduction in vitamin A intake inadequacy. Vitamin A supports immune function, vision, and growth.

Thiamin (vitamin B1) is identified as deficient in some picky-eating children, particularly those with selective eating associated with neurodevelopmental conditions. Clinical ONS trials for picky eaters include thiamin as part of the supplementation formula, with documented improvements in thiamin adequacy.

Vitamin B12 deficiency is prevalent in picky eaters who avoid meat, dairy, and animal products. It is essential for nerve function and red blood cell production. Clinical trials supplementing picky eating children document significant improvement in B12 intake; it is explicitly cited in picky eater supplementation guidelines.

Riboflavin (vitamin B2) is a B-vitamin included in oral nutritional supplementation formulas used in clinical trials for picky eating children. Picky eaters avoiding dairy and animal proteins risk riboflavin inadequacy. B2 is essential for energy metabolism and antioxidant function.

Niacin (vitamin B3) is included in oral nutritional supplementation formulas clinically tested in picky-eating children. Picky eaters avoiding meat, fish, and nuts risk inadequate niacin intake. B3 is essential for energy metabolism and DNA repair.

Niacinamide (nicotinamide, a form of vitamin B3) is the preferred form in pediatric supplements used in clinical trials for picky-eating children. It supports energy metabolism without causing flushing. Its inclusion in ONS formulas clinically tested in selective eaters supports its relevance for picky eater nutrition.

Pantothenic acid (vitamin B5) is included in oral nutritional supplement formulas clinically tested in picky eating children and is at risk of deficiency in children with severely restricted food variety. B5 is essential for coenzyme A synthesis and energy metabolism.

Vitamin B6 (pyridoxine) is documented as deficient in selective eating children, particularly those with autism spectrum disorder. B6 is essential for neurotransmitter synthesis and amino acid metabolism. It is consistently included in oral nutritional supplement formulas clinically tested in picky eating children.

Biotin (vitamin B7) is included in oral nutritional supplement formulas clinically tested in picky eating children and is essential for fatty acid synthesis and amino acid metabolism. Restrictive eating patterns increase risk of suboptimal biotin intake.

Folate (vitamin B9) is documented as a key micronutrient deficient in picky eating children. An RCT of oral nutritional supplementation in picky eaters showed significant reduction in folate inadequacy. Folate is critical for DNA synthesis, cell division, and normal growth in children.

Methylfolate (5-MTHF) is the bioactive form of folate used in pediatric supplements targeting picky eaters with documented folate deficiency. It bypasses the MTHFR conversion step and is especially relevant for children with MTHFR gene polymorphisms. Its use mirrors the documented folate gap in picky eating children.

Vitamin C is commonly deficient in picky eaters who avoid fruits and vegetables. Beyond immune support, vitamin C critically enhances non-heme iron absorption—highly relevant for picky eaters with restricted diets. Clinical ONS trials in picky eating children document significant improvement in vitamin C intake and reduced inadequacy.

Vitamin D is consistently identified as one of the top three deficiencies in picky eaters, alongside iron and zinc. Picky eaters who avoid dairy, fatty fish, and fortified foods are at heightened risk. Clinical trials of oral nutritional supplementation in picky eating children show significant reduction in vitamin D inadequacy.

Vitamin D3 (cholecalciferol) is the preferred supplemental form of vitamin D and is specifically recommended for picky eaters deficient in vitamin D due to avoidance of dairy and fatty fish. It is more effective than D2 at raising serum 25-hydroxyvitamin D levels. Children's multivitamins for picky eaters commonly include D3.

Zinc is one of the most commonly deficient nutrients in picky eaters who avoid meat, seafood, and legumes. Zinc deficiency impairs taste perception and appetite, potentially worsening selective eating. A randomized controlled trial of 10 mg/day zinc for 12 weeks in preschool children improved caloric intake and appetite scores.