
Can Fat Absorption be Enhanced with a Novel Medical Food?
Background
A medical food (MF) (Seracal™) consisting of pre-digested fat with essential fatty acids, monoglycerides, and choline-containing phospholipids, has been developed to enhance fat/nutrient absorption across a variety of malabsorption conditions.
​
The proprietary active ingredient, Lym-X-Sorb®, has been clinically shown to enhance weight gain in patients with cystic fibrosis (CF).
The MF comes in a taste-neutral powdered form, can be mixed with soft foods, and should be consumed throughout the day or used as part of a tube feeding regimen.
​
The MF has now been applied to patients with gastrointestinal (GI) symptoms in non-CF, malabsorption diagnoses.
​
These pediatric and adult patient case studies demonstrate increases in body weight and improvements in GI symptoms with the MF.
​
Credits:
Carol Ireton-Jones, PhD, RDN, LD, CNSC, FASPEN, FAND 1
Cassie Brown, MS, RD, LD CNSC 2
Megan Fisklements, PhD 3
Tracy Ruvolo, MS, MBA, RD 3
​
1 - Good Nutrition for Good Living Carrollton TX
2 - Children’s Medical Center Dallas TX
3 - Vytala Inc Philadelphia PA
Science of Lym-X-Sorb®
A precise blend of 3 lipid ingredients that self-assemble into in a unique crystalized form, enhancing absorption. ​
​
-
Long-Chain Fatty Acids, including omega-3 alpha-linolenic acid (ALA) and omega-9 oleic acid​
​​
-
Monoglyceride high in omega-6 linoleic essential fatty acid​
​​
-
Choline-containing lecithin that the body recognizes as a bile component and recirculates for increased absorption
​
Suggested serving size: ¼ cup = 4 T
Pediatric (1 -11 yrs) - up to ½ cup per day
Adult – up to ¾ cup per day
Medical Food Efficacy Data
Lym-X-Sorb Significantly Improves Fat Absorption

Pediatric Case Study
-
8-year-old with a history of VACTERL, short gut syndrome due to necrotizing enterocolitis.
​​
-
Previous parenteral nutrition dependence and G-tube dependence, currently receiving home blended enteral formula and an oral diet, MF added to regimen.
​​
-
After adding the MF, an immediate improvement in bowel movement frequency and consistency and improvement in appetite and tolerance to home blended formula through G-tube was seen.
​​
-
During initial 4 weeks of MF consumption, patient gained weight appropriate for catch-up growth and improvement from 2.3rd%ile weight for age to 3.3rd%ile weight for age growth curve (CDC 2-20 growth curve).
​​
-
3 months after the first follow-up on the MF, weight gain for catch-up needs continued and weight %ile increased to the 6.45%ile - at this time he increased from 1 serving to 2 servings per day.
Adult Case Study
-
74 –year-old adult male, 5 years s/p pancreatic cancer and s/p Whipple procedure.
​
-
Oral diet with pancreatic enzymes. Eating well but could not gain weight.
​
-
He began consuming the MF for 5 weeks.
​
-
He consumed the MF 3 times per day using 3 T for a serving size. He found that mixing it with applesauce was the best way for him to consume it.
​
-
The patient gained 8 lb., his GI symptoms improved, and he reported less severe GI pain.
​
-
Over the past 4 months he has received a short-course of chemotherapy.
​
-
He has continued to consume the MF daily and reports that it continues to help with symptoms and weight maintenance.
Summary and Implications for Practice
A unique medical food designed originally for people with cystic fibrosis; recent case studies show positive outcomes for people with other diagnoses associated with malabsorption – especially fat malabsorption.
Oral
Meals/Snacks/Soft foods
Enteral
via tube flush
Parenteral
to increase calories, help wean from PN