Top Dress in horse feed is a great place to start. then horse folks the  research for clinical experience has shown that DMG supplementation supports:
• Physical and mental performance
• Oxygen utilization
• Strengthening of both arms of the immune system, including antibody, lymphocyte and cytokine production
• Detoxification, especially in the liver
• Circulation and vascular health
• Glucose and fat metabolism
• Blood pressure, cholesterol, triglycerides and homocysteine levels within normal ranges
• Physical and mental energy levels by reducing lactic acid build-up during periods of stress
• Mental alertness and brain function
• DMG supports overall body health by acting as an indirect methyl donor and providing useful building units for the biosynthesis of vitamins, hormones, neurotransmitters, antibodies and nucleic acids.
SUPPLEMENT FACTS
Available Bottle Sizes: 2 oz
Serving Size: 1 Dropper Full
Servings Per Container: 60
Amount Per Serving
N,N-Dimethylglycine (DMG) 300 mg
Other ingredients: Purified Water
Suggested use: As a dietary supplement (age 4-11 yrs) take 1 dropper full twice daily, (age 12-Adult) take 1 dropper full two to four times daily, or as directed by your healthcare practitioner.
Warning: If you are pregnant or nursing, consult your health care practitioner before taking these or any nutritional products.
• A dietary supplement to support immune system, circulatory, cardiovascular and neurological functions, muscle recovery and endurance.
• EnerDMG is an adaptogen that can be used to maintain good health and benefit performance and productivity.
• As a metabolic enhancer, DMG supports the body in times of stress, throughout the aging process, and during immune system challenges.
• DMG is an intricate part of human metabolism and has been used in the health field as a nutritional supplement for over 25 years.