This restriction probably explained why a NAC-induced rise in cord blood GSH levels did not reach statistical significance, and limited subgroup analyses of severe IPTB cases as well as taking in account medications and obstetrical complications in the adjustment for confounding factors
Lets take a realistic look
Primary carnitine deficiency can bring symptoms in infancy while secondary deficiency can occur at all ages according to the factors that are causing it

Senactiv, a specialized blend of specific natural compounds, supports mitochondrial health, energy production, and overall performance Dietary ConsiderationsDairy/ Milk Free Gluten Free Soy Free Non-GMO Serving Size: 3 Capsule Servings Per Container: 30 Amount Per ServingCalcium (from Calcium -Hydroxy -Methylbutyrate Monohydrate) 240 mg myHMB (-Hydroxy -Methylbutyrate) (from Calcium -Hydroxy Methylbutyrate Monohydrate) 2000 mg Epicatechin (Green Tea Leaf Extract) 400 mg PurpleForce Purple Tea Leaf Extract (Camellia Sinensis)(3% GHG) 100 mg AstraGin Root Extracts (Astragalus membranaceus and Panax notoginseng) 50 mg Senactiv Root Extracts Panax notoginseng (root) and Rosa roxburghii (fruit)] extracts (Astragalus membranaceus and Panax notoginseng) 50 mg Other Ingredients: Rice Powder, Microcrystalline Cellulose, Vegetable Capsule (Hypromellose) Dosage: Take 3 capsules 30-60 minutes prior to your workout routine or as directed by your physician If pregnant, nursing, or taking prescription drugs, consult your healthcare professional prior to use

Despite its wide use, optimal dosing to achieve efficacy and minimize toxicity remains problematic
PMCID: PMC4798912